Electrical Engineering

Admissions 2026-27 Semester-I Announcements ^New
Admission Notice under Joint PhD with University of Melbourne in Quantum communications ^New
IIT Kanpur Certificate Program on PYTHON for Artificial Intelligence Machine Learning and Deep Learning, 15th June to 15th July 2026 ^New
Applied Data Science & Machine Intelligence: Fundamentals to Next Generation AI: 1st June to 15th July 2026 ^New
IIT Kanpur Certificate Program on Python QISKIT for Data Science, Data Analytics, Machine Learning (ML) and Quantum Computing, 1st March to 27th March 2026 ^New
Notice for Spot PhD Admissions

The IEEE DEIS Summer School 2025 on the theme of 'Insulating and Multifunctional Dielectrics' was hosted for the first time in India, at IIT Kanpur, from 20th to 25th September.
IIT KANPUR Certificate Program on PYTHON + MATLAB/ OCTAVE-Based Simulation and Design of 5G/ 6G Wireless Technologies, 1st September to 26th September 2025
Dr. Meena Mishra, DRDO graced us as the Guest of Honour for the 58^th Convocation.
Farewell to the class of 2025 organized by EEA on 22^nd April 2025
Workshop on "Metamaterial Antennas and Applications" was successfully conducted from April 18-20 2025, coordinated by Prof. Raghvendra Kumar Chaudhary and Prof. Kumar Vaibhav Srivastava
Invited Lecture by Prof. Akhilesh Jaiswal (University of Wisconsin-Madison, USA) titled "Unconventional Computing Paradigms from Extreme-Edge to Extreme-Scale" was successfully conducted on 15^th April 2025
EMI/EMC (Electromagnetic Interference and Compatibility) and Electrical Safety Test Facility, accredited by National Accreditation for Testing and Calibration Laboratories (NABL) was launched on 5 April, 2025 at IIT Kanpur under the leadership of Prof. M. Jaleel Akhtar
Happy Hours for UG students organized by EEA on 24^th March 2025
Invited Lecture by Prof. Souvik Mahapatra (IIT Bombay) titled “A Device (TCAD) to Circuit (SPICE) Framework for BTI and HCD Aging” was successfully conducted on 24^th February 2025
Lecture by Prof. Saurabh Lodha (IIT Bombay) titled “Engineering the strain and neuromorphic performance of 2D-TMD transistors” was successfully conducted on 25^th February 2025
Invited Lecture by Mr. Milind Dhighrasker, Senior Director, ON Semiconductors titled “Overview of Design Challenges for SiC-based Traction Inverters” on 31^st January 2025
Invited Lecture by Prof. William G. Whittow, Wolfson School of Mechanical, Electrical and Manufacturing Engineering (WSMEME) at Loughborough University titled “Recent Advances in Reconfigurable RF Frontend Systems” was successfully conducted on 6^th January 2025
Bonfire Evening - Relive the Joys of College Days organized by EEA on 4^th January 2025
Invited Lecture by Prof. Srabanti Chowdhury (Stanford university) titled “Unleashing the Potential of Wideband Gap Materials” was successfully conducted on 2^nd January 2025

Mar

2026

Admissions 2026-27 Semester-I Announcements Read More...

Head’s Message
LinkedIn

Welcome to the Department of Electrical Engineering (EE) at IIT Kanpur. The EE department is one of the oldest departments at IIT Kanpur. It was one of the first five departments with which IIT Kanpur started in 1960. Subsequently, the Advanced Centre for Electronics Systems (ACES) came into existence in early 1970 by a grant from the Ministry of Defence to undertake manpower training and to carry out research and development related to defense. Subsequently, several sponsored projects in many subject areas with large interdisciplinary content were handled through ACES. ACES is now an integral part of the EE department and houses the majority of EE laboratories and facilities. The department is currently the largest multidisciplinary department at IIT Kanpur. It covers practically all sub-disciplines in Electrical and Communication Engineering including Power Systems, Power Electronics, Microwaves, RF techniques, Microelectronics, VLSI, Photonics, Control Systems, Robotics, Speech, and Audio Processing, Computer Vision, Artificial Intelligence, Machine Learning, Wireless Communication, Computer Networks, Future wireless networks like 5G/6G, Wireless sensor networks, and IoT networks. Read more

Research Highlights

UG Compulsory Courses (D)

S. No.	Course No.	L-T-P- A (Units)	Course Title	Instructor(s)	Slot & Room	Schedule
S. No.	Course No.	L-T-P- A (Units)	Course Title	Instructor(s)	Slot & Room	Lecture	Tutorial	Laboratory
1.	EE200*	3-1-0-0 (11)	Signals, Systems, Networks	Naik N. Bhagat Nikunj	3-1	MWF12:00	Th12:00	--
2.	EE320*	3-1-0-0 (11)	Principles of Communication	Gupta A K, Rajawat Ketan	SLOT-1	TWTh8:00	F15:00	--
3.	EE330*	3-1-0-0 (11)	Power Systems	Alok Ranjan Verma	SLOT-2	MF8:00 T9:00	Th11:00	--
4.	EE370*	3-1-0-0 (11)	Digital Electronics and Microprocessor Technology	Shubham Sahay, Chithra	ESO/ SO-3	MWF11:00	T17:10	--
5.	EE380*	0-3-6-0 (12)	Electrical Engineering Lab-I	Shubham Sahay	SLOT-3	--	W09:00 Th17:10 F16:00	MTWTh14:00
6.	EE390*	0-0-0-2 (02)	Electrical Engineering Communication Skills	Harish A R, Ray D	SLOT-7	--	--	T10:00

*These courses will be offered for B. Tech and BS Y23 Batch and onwards.

UG Departmental Electives (DE)

[List all Courses (including OE and PG courses) declared as Departmental Electives]

S. No.	Course No.	L-T-P-A (Units)		Course Title					Instructor			Slot
				All the courses listed as PG course are Department Electives (DE)

UG Open Electives (OE)

[List All Courses (Including D, DE and PG Courses) Declared as Open Elective]

S. No.	Course No.	L-T-P-A (Units)	Course Title	Instructor	Slot
1.	EE604	3-0-0-0 (9)	Image Processing	KR	OE-6
2.	EE618	3-0-0-0 (9)	IC Fabrication Technology	Amit Verma	OE-6
3	EE634	3-0-0-0 (9)	Electrical Insulation in Power Apparatus and Systems	N. Gupta	OE-1
3	EE653	3-0-0-0 (9)	Digital Control	R. Potluri	OE-1
4	EE679	3-0-0-0 (9)	Smart Grid Technologies	A Sharma	OE-2
5	EE660	3-0-3-0 (9)	Basics of Power Electronics Converters	P. Sensarma	OE-3
6	EE698A	3-0-0-0 (9)	EMI/EMC in Power Electronics	U Kundu	OE-2
7	EE698J	3-0-0-0 (9)	Graph Theory and Applications	T Tripathy	OE-2
8	EE798I	3-0-0-0 (9)	Nanophotonics	Rituraj	OE-2
9	EE661	3-0-0-0 (9)	Power Electronics Applications in Power Systems	EC Mathew	OE-8
10	EE677	3-0-0-0 (9)	MIMO Wireless Communications	R. Budhiraja	OE-1

UG Minors

[List All Courses (including D, DE, OE and PG courses) Declared as Minor]

S. No.	Course No.	L-T-P-A (Units)	Course Title	Instructor	Slot
1.	EE200	3-1-0-0 (11)	Signals, Systems, Networks	Naik, N Bhagat Nikunj	MWF12:00
2.	EE320	3-1-0-0 (11)	Principles of Communication	Gupta A K	TWT-8:00 SLOT-1
3.	EE330	3-1-0-0 (11)	Power Systems	Alok Ranjan Verma	MF8:00 T9:00 SLOT-2
4.	EE370	3-1-0-0 (11)	Digital Electronics and Microprocessor Technology	Shubham Sahay, Chithra	MWF11:00 ESO/SO-3
5.	EE642	3-0-0-0 (9)	Antenna Analysis and Synthesis	A. R. Harish	OE-6
6.	EE650	3-0-0-0 (9)	Basics of Modern Control Systems	Abhilash Patel	OE-8
7	EE798I	3-0-0-0 (9)	Nanophotonics	Rituraj	OE-2

PG Courses

[List all PG courses, including those declared DE, OE or part of minor]

S. No.	Course No.	L-T-P-A (Units)	Course Title	Instructor	Slot
1	EE601	3-0-0-0 (9)	Mathematical Methods in Signal Processing	N Naik	DE-7
2	EE602	3-0-0-0 (9)	Statistical Signal Processing -I	A. Jagannatham	PG-4
3	EE605	3-0-0-0 (9)	Introduction to Signal Analysis	A. K. Chaturvedi	PG-5
4	EE610	3-0-0-0 (9)	Analog/Digital VLSI Circuits	RSA Kumar	DE_3
6	EE616	3-0-0-0 (9)	Semiconductor Device Modeling	Aloke Dutta	PG-6
7	EE617	3-0-0-0 (9)	Industrial Automation and Control	NK. Verma	PG-6
8	EE621	3-0-0-0 (9)	Representations & Analysis of Random Signals	WS Mondal	PG-6
9	EE622	3-0-0-0 (9)	Communication Theory	K. Vasudevan	PG-15
10	EE627	3-0-0-0 (9)	Speech Signal Processing	R. M. Hegde	DE-8
11	EE630	3-0-3-0 (9)	Simulation of Modern Power Systems	S Battula	DE-2
12	EE631	3-0-0-0 (9)	Advanced Power System Stability	S Chakrabarti	DE-4
13	EE641	3-0-0-0 (9)	Advanced Engineering Electromagnetics	RK Chaudhary	DE-3
14	EE645	3-0-0-0 (9)	Monolithic Microwaves ICs	N Poluri	PG-1
15	EE647	3-0-3-0 (12)	Microwave Measurements & Design	J Akhtar	PG-10
16	EE664	3-0-0-0 (9)	Fundamentals of Electric Drives	P Kant	PG-4
17	EE670	3-0-0-0 (9)	Wireless Communication	A. Banerjee	DE-2
18	EE683	3-0-0-0 (9)	Quantum and Wave Phenomena	R Dey	PG-8
19	EE684	3-0-0-0 (9)	Fiber Optic Communication	Pradeep K K.	DE-2
20	EE698B	3-0-0-0 (9)	Modelling and Simulation of Distribution System with Renewables and Electric Vehicles	G M Vishwanath	DE-5
21	EE698E	3-0-0-0 (9)	Power Converter for EV Charging	S Samanta	PG-15
22	EE698W	3-0-0-0 (9)	Analog circuits for signal processing	I Mondal	DE-4
23	EE698XX	3-0-0-0 (9)	Data Structures and Algorithms	Y. N. Singh	DE-1
24	EE705	3-0-0-0 (9)	Intelligent Systems and Control	S.R Sahoo	DE-5
25	EE798B	3-0-0-0 (9)	Programming for Signal Processing	V. Arora	DE-5
26	EE801	3-0-0-0 (9)	Electrical Engineering PG Seminar Course	R S Ashwin	PG-6
27	EE888	3-0-0-0 (9)	Introduction to Profession and Communication Skills for Electrical Engineers	A Lahgere	PG-11
28	PSE603	3-0-0-0 (9)	Numerical Methods in Optics	R Gannavarpu
29	BSE698	3-0-0-0 (9)	Electronics and Signal Processing for Biologists	NA Bhagat
30	EE614	3-0-0-0 (9)	Solid State Devices 1	A Bose	OE-8

PG Laboratory

S. No.	Course No.	L-T-P-A (Units)	Course Title	Instructor	Laboratory Schedule
1	EE630	3-0-3-0 (12)	Simulation of Modern Power Systems	S. B	T 09:00 to 12:00 ACES 313
2	EE647	3-0-3-0 (9)	Microwave Measurements & Design	Akhtar Jaleel	T 14:00 – 16:50 DA 225
3	EE660	3-0-3-0 (12)	Basics of Power Electronics Converters	Sensarma, P	F 14:00 – 16:50 WL 217

Details: Last Updated: Saturday, 30 August 2025 16:23

The lab is used for course no EE380A & EE381A (Electrical Engineering Laboratory) and is located in WL112
Contact No: 7849

Overview

Electromechanical Energy Conversion (EMEC) Laboratory is the one the oldest and important laboratory of Electrical Engineering Department. The lab is equipped with conventional and modern electrical& electronic measuring equipments and ac & dc electrical machines. It is used for UG lab courses EE -380A & EE 381A. In the lab students study, learn & perform the experiments on different types of electrical machines such as - transformers, Synchronous motors, alternators, dc motors & generators, three phase and single phase induction motors, relays and controlled rectifiers to verify the different characteristics of the electrical machines.

Faculty

Dr. A Joshi
Dr. S C Srivastava
Dr. S P Das
Dr. P. Sensarma
Dr. S N Singh

Equipment

DC Rectifier Sets, 0-270 V, 100 Amps and 50 Amps.
Step Down Transformer, 25 kVA, 415/230V, 3-phase, 50Hz,
Three Phase Alternators coupled with DC Motors.
Open type dc & ac machines.
Synchronous Motor coupled with DC Generators.
Three Phase Squirrel cage Induction Motors
Three Phase Squirrel cage Induction Motors Coupled with DC shunt Generators.
Single phase Squirrel cage capacitor start capacitor run induction motors.
Single phase Squirrel cage capacitor start capacitor run induction motors coupled with DC shunt Generators.
Experimental tables with panel boards.
Single phase full and half controlled rectifier’s kits.
Step down transformers of various ratings.
Three and Single Phase Auto Transformers of various ratings.
Test setups of directional over current relay
Test setups of determination of phase sequence of three phase system.
Digital Storage Oscilloscopes.
Various ratings and various types of portable measuring equipments such as Watt meters, Voltmeters, Ammeters, Phase sequence indicator, Digital True RMS Multimeter, Electronic and rotary type Synchronoscopes.
Insulation Tester (test voltage up to 5 kV)
Clamp Meters,
Infrared Thermometer.
Current Probes.
Voltage Differential Probes.
Clamp on Earth Tester.
Digital Contact and Non-contact type Tachometers
Stroboscopes.
Programmable LCR Bridge.
Current Transformers.
Rheostats of various ratings.
Three Phase and Single phase resistive loads.
Three and single phase Capacitive Loads.
Three Phase and Single phase fixed & variable Inductors.

List of Experiments for EE380A

Experiment No 1
- To perform Sumpner's test on two identical transformers and calculate their efficiency at 110%, 100%, 75% and 25% of full load at unity and 0.8 p.f. lagging
- To separate the hysteresis and eddy current losses combined in the core of a 1-phase transformer under the rated conditions
Experiment No. 2
- To conduct load flow studies on a power system using Power System software and study the effect of the following:
  (a) Generation rescheduling
  (b) Increasing transmission line length
  (c) Increasing system load
  (d) Shunt compensation (e) Series compensation
Experiment No. 3
- To connect three single phase transformers into three-phase transformer bank and study the waveforms for various configurations.
Experiment No. 4
- To perform no-load, blocked rotor and load tests on l-phase capacitor start-capacitor run induction motor and determine:
  (a) The parameters for the equivalent circuit.
  (b) Compute the performance of motor from the parameters and compare with experimental results.
Experiment No. 5
- To perform no load, blocked rotor and load tests on a 3-phase squirrel cage induction motor and draw its equivalent circuit referred to the stator and calculate the efficiency of the motor.
- Also obtain the performance characteristics of the motor theoretically from the equivalent circuit parameters and compare it with the experimentally obtained results.
Experiment No. 6
- To perform open and short circuit tests on a synchronous generator and determine its synchronous impedance (i) neglecting saturation and
  (ii) considering saturation.
- To determine an equivalent circuit of the generator using the synchronous impedance values determined in above (i) and (ii).
- To determine and draw the terminal voltage versus load current characteristics of the generator for unity power factor load using the equivalent circuit determined in part 2 above.
- Also to determine voltage regulation of the generator for unity power factor load.

List of Experiments for EE381A

To study single phase AC regulator and its operation with R-load, and RL-load.
To study single phase half controlled rectifier and its operation with R-load and RL–load.
To obtain ‘V’ curves of a Synchronous Motor.
(a) To Synchronize a Synchronous Generator with infinite bus Bar by Synchroscope and lamps methods.(b) To determine the maximum power transfer capacity across a transmission line in a single machine infinite bus system.
(a) To study the directional inverse time over-current relay type CDD-21.(b) To determine the phase sequence or direction of phase rotation in a 3-phase system and compare it with the sequence determined by a phase sequence meter.
To conduct experiment in the High Voltage lab to observe the followings. (a) Distinction between the types of electrostatic fields.(b) Different stages in gas breakdown.

Testing Facilities

High Current Transformer and test setups for temperature rise test
RCCB Test Setups.
MCCB Test setups.
Main Switches and Starters Test Setups except short circuit test.
Electrical Endurance and over load test Setup up to 800 amps for three phase and single phase RCCBs, MCCBs, Starters and Main switches.
Humidity Chamber.
AC High Voltage Break Down Tester.
Oven.
Sound Proof Box.
Leakage Current Clamp Meter.

Contact Person

Mr. Lekhraj Singh
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Location: WL112
Contact No: 7849

Lab-in-charge:
Mr. Lekhraj Singh
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Support staff: Mr. S.P. Sahu

The lab is used for course no EE647 (Microwave Measurements and design) and following research areas. It is located in ACES225

Microwave Measurement and Design
Characterization of Microwave devices and circuits

Contact No: 7105

Faculty

Facilities

Equipment:
- Agilent PNA-L Network Analyzer N5230A (10 MHz to 50 GHz)
- Agilent ENA Series Network Analyzer E5062A (300 KHz to 3 GHz)
- Agilent Network Analyzer 8714ET (300 KHz to 3000 MHz)
- Agilent Spectrum Analyzer N9320B (9 KHz to 3GHz)
- Rohde and Schwarz Spectrum Analyzer FS300 (9 KHz to 3GHz)
- Agilent PSG analog signal generator E8257D 250 KHz to 20 GHz
- Agilent RF Signal Generator N9310A (9 KHz to 3GHz)
- WaveTek Microwave Source Model-952 (1 GHz to 4 GHz)
- WaveTek Microwave Source Model-954 (3.7 GHz to 7.6 GHz)
- WaveTek Microwave Source Model-955 (7.5 GHz to 12.4 GHz)
- HP Signal Generator 8656B (0.1 MHz to 990 MHz)
- Agilent Function/Arbitrary Waveform Generator 33250A 80 MHz
- HP Power Meter 437B
- HP Power Sensor 8481A
- HP Noise Figure Meter 8970B
- Agilent RF Amplifier 83006A, 0.01-26.5 GHz, 20 dB gain
- Agilent Calibration kit 85056D 2.4 mm
- Agilent Calibration kit 85032F Type-N
- Agilent Calibration kit 85033D 3.5 mm
Shielded Anechoic Chamber:
- A Radio frequency (RF) anechoic chamber is a closed RF echo free space that simulates infinite free space condition inside a room. It is constructed by covering the inner walls of the room by RF absorbers made of carbon impregnated foam shaped in the form of pyramids (Fig. 1). The size of the pyramids and the carbon composition determines the lowest frequency that can be effectively absorbed. Larger sized cones are capable of absorbing lower frequency waves.
- Anechoic chamber are used for measurement of antenna radiation pattern, electromagnetic compatibility, radar cross section, etc. Apart from creating a reflection free environment, an anechoic chamber should also suppress the unwanted signals penetrating into the chamber and interfering with the measurements. This is achieved by first lining the walls of the chamber by high permeability metal sheets and then with the RF absorber material. The metal cage is grounded using a specially prepared low conductivity earth pit connection to provide a zero potential cage. The metal cage shields the measurement space from external interferences.
- The chamber dimension are 7 m x 6 m x 3.3 m (LxWxH). It can be used for conducting measurements at frequencies from 1 GHz to 26 GHz. The quiet zone is 2m x 0.8 m x 0.8 m (WxHxL) at 1 GHz, and 2m x 0.3 m x 0.3 m (WxHxL) between 10 GHz and 26 GHz centered at a distance of about 4 m from the transmitting antenna. The shielded effectiveness is -50 dB at 1 GHz and – 40 dB from 2 to 18 GHz.

List of Experiments

VSWR Measurement and Impedance Calculation. Measure the VSWR using normal method and double minima method. Measure the frequency using the frequency meter and compare with calculated guided wavelength. Calculate the input impedance of a given load from the VSWR measurements and shift in the minima
Study of Tuners and Impedance Matching using single, double and E-H tuners Measure the post reactance as a function of the depth of the post Impedance matching of a given load using slide screw tuner, E-H Tuner, Double stub tuner.
To study the behavior of terminated coaxial transmission line in both frequency and time domains.
Familiarization with basic operation of Vector Network Analyzer (VNA)Study the operation of VNA and understand the use of menus/soft keys Study the method of setting reference and introducing offset to obtain accurate readings. Use the VNA to measure the complete S parameters of the component under test.
Calibration and measurement with Vector Network Analyzer. Performing the 2-port calibration on the coaxial media. Characterization of the directional coupler, filter, attenuator etc.
Understanding of Power Meter and calibration of variable attenuator. Understand the use of power meter. Calibration of variable attenuator. Determination of detector characteristics.
Directional Coupler Characteristics and application to Scalar Network Analyzer. Measure the characteristics of a directional coupler like coupling, isolation and directivity. Use the directional coupler to set up a scalar network analyzer and measure the scattering matrix of a two-port device.
Familiarization with the Noise Figure Meter and Measurement of Noise Figure of different devices. Familiarization with the Noise Figure Meter. Measurement of Noise Figure of different devices.
Study of Spectrum Analyzer Measurement. Familiarization with the Spectrum Analyzer. Study of the spectra of modulated waveforms. Measure the 1 dB compression point of the amplifier and the harmonics produced. Gain flatness. Use the tracking generator as a scalar analyzer.
Measure the radiation pattern and gain of the antenna. Measure the radiation pattern of the antenna under test. Measure the gain of the antenna using absolute gain measurement and gain comparison method.

Staff

Ms. Anchal Agrawal

Photos

Contact Person

Dr. Kumar Vaibhav Srivastava
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: 91-512-259-7105
Location: ACES-225

Details: Last Updated: Thursday, 24 July 2025 16:32

Welcome to the home of Microelectronics and VLSI. Research interests of faculty members includes Spintronics, Semiconductor Device Modeling and Simulation, Solid State Devices, Organic Electronics, Transparent Semiconductors and Photovoltaic systems, VLSI technology including analog/mixed signal circuit design, VLSI Circuit Design and RFID Tag Chip Design.

The department has excellent research laboratories and support facilities in the area of Microelectronics and VLSI. Micro fabrication lab with basic semiconductor processing capability for silicon as well as organic material based devices (OLED, organic solar cells, OTFT, etc.), Solar cell characterization lab, photo mask making facility, Semiconductor device lab with capability to synthesize organic materials for organic LEDs and solar cells, Integrated circuits simulation and VLSI design laboratory with all the modern EDA tools, (e.g. CADENCE, SYNOPSYS, Mentor Graphics, MAGMA, COWARE, XILINX based gate array design & programming tools, etc.) and adequate hardware in the form of servers and good number of workstations for research and course work. Three teaching/training labs have been developed to train students in areas related to organic electronics. These are the organic electronics processing lab, the organic electronics characterization lab and the organic electronics simulation lab.

The Semiconductor Device Fabrication Lab is engaged in the research and technology development of silicon and organic based materials and devices. The fabrication and characterization of transistors, diodes, photo-diode, solar cells, OLEDs, TFTs and similar devices can be carried out in the Lab. The basic materials are also developed.

Research

Organic Electronics.
Organic Solar Cells.
Organic Thin Film Transistors.
Organic Light Emitting Diodes

Facilities

MBRAUN Glove box with spinner and evaporator
Hind Hinvac vacuum thermal deposition system
Furnaces for silicon wafer oxidation and doping
Class 1000 Clean room
Solar Simulator
Spectral Response

Publications

"Solar Photovoltaic Energy Harnessing", S. Sundar Kumar Iyer, Review Article in Proceedings of the Indian National Science Academy, Volume 81, No. 4, September 2015 pp. 1001-1021
"Increase in hole mobility in poly (3-hexylthiophene-2,5-diyl) films annealed under electric field during the solvent drying step", Anirban Baguia, S. Sundar Kumar Iyer, Organic Electronics, Volume 15, Issue 7, July 2014, Pages 1387–1395
"Static electric field enhanced recrystallization of copper phthalocyanine thin film during annealing", Anukul Prasad Parhia and S.Sundar Kumar Iyer, Journal of Crystal Growth, Volume 380, 1 October 2013, Pages 123–129
"Effect of metal nanoparticles' contact angle on absorption of light in organic solar cell active layer", Devika Kataria and S. Sundar Kumar Iyer, Journal of Renewable Sustainable Energy, Volume 5, Issue 3, June 2013, 031617.

Projects

Study of electrodes in organic solar cell for efficiency and relialbility improvement.
Design and Development of Organic Solar Cell Sub-Modules, One of the participating lab in "Centre for excellence for Large Area Flexible Electronics" at IIT Kanpur.

Faculty

S. Sundar Kumar Iyer
Baquer Mazhari

PhD Students

Sandeep Kumar
Sayed Mazahir Hussain Rizvi
Rajesh Agarwal

MTech Students

Chinmay Nitin Oak

Staff

Patiram

Contact Person

S Sundar Kumar Iyer
x-7820 This email address is being protected from spambots. You need JavaScript enabled to view it.
Mr. Patiram
x-7832 This email address is being protected from spambots. You need JavaScript enabled to view it.

The VLSI-EDA lab is equipped with the most up-to-date industry standard VLSI EDA tools and hardware resources. The lab facility includes course lab for course projects and assignments, research lab for thesis and research and testing lab for VLSI testing. The server room in VLSI Lab houses over 15 servers which power all the Linux and Windows workstations in course, research and testing sections. The lab also has an in-house library holding of around 60 books related to VLSI and allied fields for student reference.

Facilities

State-of-art facility for research and teaching at postgraduate level.
Software tools: Synopsys, Cadence, Mentor Graphics, Xilinx, Keysight ADS, Keysight IC-Cap, Synopsys Advanced TCAD, Silvaco TCAD 3D, Silvaco AMS, GTS TCAD Framework and QuantumWise ATK.
Open Source Tools: OOMMF, QCADesigner, Spice3f5, BSIM4 and QuantumEspresso.
Extended-use Off-maintenance tools: Silvaco TCAD 2D, Tanner EDA, MEMS and AimSpice.
FPGA prototyping boards, Analog and Digital IO boards and DSP kits from Xilinx.
Function Generators, Oscilloscopes and Logic Analyzers.
Networked computing environment with Linux and Windows.

Course Lab

The course projects have been designed in analog, digital and rf areas using software and hardware tools.

PG:

EE610: Analog/ Digital VlSI Circuits
EE614: Solid State Devices - l
EE616: Semiconductor Device Modelling
EE618: Integrated Circuit Technology
EE619: VLSI System Design
EE645: Monolithic Microwave ICs
EE681: Compact Modeling
EE698I: Solar Photovaltaic Technology

UG:

EE370: Digital Electronics and Microprocessor Technology
EE413: Semiconductor Devices Technology

Research Areas

Organic Thin Film Transistor
Silicon-On-Insulator MOSFET
VLSI Interconnections
Carbon Nanotubes
Hetero-Junction Bipolar Transistor
Novel Semiconductor Devices
Tunnelling FET
Junction-less FET
Ultra-Thin Body Silicon-On-Insulator
Digital ASIC Design
Full Custom ASIC Design
Advanced CMOS Devices
High Electron Mobility Transistors
Compact Modelling
MOSFET Modelling
Device Simulation
Physics of 2D Materials applications

Faculty Supervisors

Prof. Aloke Dutta (EE)
Prof. B. Mazhari (EE)
Prof. S. S. K. Iyer (EE)
Dr. Y. S. Chauhan (EE)
Prof. Animesh Biswas (EE)
Prof. A.R. Harish (EE)
Dr. Jaleel Akhtar (EE)
Prof. Rajat Moona (CSE) On-Leave
Prof. Ajay Jain (CSE)
Prof. Sandeep Shukla (CSE)
Prof. Shashank Mehta (CSE)
Dr. Mainak Chaudhuri (CSE) Co-CI, SMDP-C2SD
Prof. Deepak Gupta (MSE)
Prof. Monika Katiyar (MSE)
Prof. Ashish Garg (MSE)
Dr. Sarang Ingole (MSE)
Prof. Y.N. Mohapatra (MSP)
Prof. R. S. Ashwin Kumar (EE)
Prof. Imon Mondal (EE)
Prof. Chithra (EE)

Staff

Mr. Bharat Somaiya, Senior Technician & Sys-Admin

Research Associates

Dr. Chandra Shekhar Gautam (EE)
Dr. Mohamed Asan Basiri M (CSE)
Dr. Sarvesh Singh Chauhan (EE)
Dr. Sudip Ghosh (EE)
Dr. Tapas Dutta (EE)
Mr. Basanagauda B. Patil (SCDT)
Mr. Gavax Joshi (EE)
Mr. Ragavendra Dangi (EE)
Mr. Sanjay Sharma (EE)
Mr. Uttam Kumar Das (EE)

Research Scholars

Mr. Amol Domaji Gaidhane (EE)
Mr. Ashish K. Agrawal (EE)
Mr. Avirup Dasgupta (EE)
Mr. Ball Mukund Tripathi (EE)
Mr. Chandan Yadav (EE)
Mr. Chetan Gupta (EE)
Mr. Dabhi Chetankumar Trikambhai (EE)
Mr. Dharmander Malik (EE)
Mr. Dinesh R (EE)
Mr. Girish Pahwa (EE)
Mr. Prateek Jain (EE)
Mr. Priyank Rastogi (EE)
Ms. Rajani Bisht (EE)
Mr. Rajesh Agrawal (EE)
Mr. Ravi Goel (EE)
Ms. Sandhya Chandravanshi (MSP)
Mr. Satya Gopal Dinda (EE)
Mr. Shantanu Agnihotri (EE)
Mr. Sheikh Aamir Ahsan (EE)
Mr. Shiromani B. Rahi (EE)
Ms. Shruti Mehrotra (EE)
Mr. Sona Das (EE)
Ms. Tannu Gupta (EE)
Mr. Tapendu Mandal (MSE)

Form

Contacts

Prof. R. S. Ashwin Kumar
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: +91-512-259-2165
Location: WL-120
Prof. Imon Mondal
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: +91-512-259-7732 | +91-512-259-0063
Location: WL-211
Prof. Chithra
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: +91-512-259-2199
Location: WL-211
Mr. Bharat Somaiya
E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Location: ACES-114

Research

Organic Electronics.
Organic Solar Cells.
Organic Thin Film Transistors.
Organic Light Emitting Diodes.

Facilities

Thermal Evaporator
Spin Coater `
Ultrasonicator
Characterization Setup

Publications

Traps signature in steady state current-voltage characteristics of organic diode, Rizvi, S. M. H. and Mantri, P. and Mazhari, B., Journal of Applied Physics, 115, 244502 (2014)
Prachi Mantri, S.M.H. Rizvi, B. Mazhari, Estimation of built-in voltage from steady-state current-voltage characteristics of organic diodes, Organic Electronics, Volume 14, Issue 3, August 2013, Pages 2034-2038.
Vinay Kumar Singh and Baquer Mazhari, Measurement of threshold voltage in organic thin film transistors, Appl. Phys. Lett. 102, 253304, June 2013.
Arun Tej Mallajosyula, S. Sundar Kumar Iyer, Baquer Mazhari, Charge transport in polythiophene: fullerene: nanotube bulk heterojunction photovoltaic devices investigated by impedance spectroscopy, Current Applied Physics, June 2013
M. N. Islam and B. Mazhari, Organic Thin Film Transistors with Asymmetrically Placed Source and Drain Contact, Organic Electronics, Volume 14, Issue 3, March 2013, Pages 862-867.
Ashish K. Agarwal, and B. Mazhari, Simultaneous Extraction of Source and Drain Resistances in Top Contact Organic Thin Film Transistors From a Single Test Structure, Organic Electronics: physics, materials, applications 13 (11) , pp. 2659-2666, Nov. 2012.
Mallajosyula, Arun Tej, Iyer, S. Sundar Kumar; Mazhari Baquer, Capacitance-voltage characteristics of P3HT:PCBM bulk heterojunction solar cells with ohmic contacts and the impact of single walled carbon nanotubes on them, Org. Electronics, Volume 13, Issue 7, July 2012, Pages 1158-1165.
Vinay K. Singh, Baquer Mazhari, Impact of scaling of dielectric thickness on mobility in top-contact pentacene organic thin film transistors , J. Appl. Phys. 111, 034905 , Feb 2012
Vinay K. Singh, Ashish K. Agarwal and Baquer Mazhari, Measurement of Source Resistance in Top Contact Organic Thin Film Transistors, IEEE Electron Device Lett., EDL-9, March 2012
Vinay K. Singh, Baquer Mazhari, Accurate characterization of organic thin film transistors in the presence of gate leakage current, AIP ADVANCES 1, 042123 (2011)

Faculty

Dr B Mazhari
Dr SSK Iyer

PhD Students

Rajesh Agarwal
Syed Rizvi
Nadeem Firoz

MTech Students

Peeyush
Nama Jain
Saurabh
Anubhav
Pankaj
Abhinay
Shobhojit

Staff

Patiram

Contact Person

Dr B Mazhari
Dr SSK Iyer

Location: WL 118
Lab Contact No:7189

Facilities

200mm wafer characterization facility: DC, CV and RF characterization of electron devices, for temperature range -65C to 200C.
Equipped with state of the art software tools:
SPICE simulators - HSPICE, SPECTRE, ADS
RF simulation and design - Agilent ADS and Microwave office
TCAD Simulators - Silvaco Atlas and Synopsys Sentaurus
Parameter Extraction tool - ICCAP
Atomistic Simulator - ATK Quantumwise, NanoMOS, NextNano
Multiprocessor Linux servers and workstations
Library with reference books and manuals along with projector, screen,whiteboard for discussions and group meetings
Network Printing, Scanning and Xeroxing

Publications

P. Kushwaha, H. Agarwal, S. Khandelwal, J. P. Duarte, A. Medury, C. Hu and Y. S. Chauhan, "BSIM-IMG: Compact Model for RF-SOI MOSFETs", accepted in IEEE Device Research Conference (DRC), Columbus, USA, June 2015.
S. A. Ahsan, S. Ghosh, K. Sharma, A. Dasgupta, S. Khandelwal, and Y. S. Chauhan, "Capacitance Modeling of a GaN HEMT with Gate and Source Field Plates", accepted in IEEE International Symposium on Compound Semiconductors, Compound Semiconductor Week, June-July 2015.
P. Rastogi, T. Dutta, S. Kumar, A. Agarwal, and Y. S. Chauhan, "First Principle Study of Quantization Effects on UTB InP MOSFET", accepted in IEEE International Symposium on Compound Semiconductors, Compound Semiconductor Week, June-July 2015.
A. Dasgupta and Y. S. Chauhan, "Surface Potential Based Modeling of Induced Gate Thermal Noise for HEMTs", accepted in IEEE International Symposium on Compound Semiconductors, Compound Semiconductor Week, June-July 2015.
S. Khandelwal, Y. S. Chauhan, B. Iniguez, and T. Fjeldly, "RF Large Signal Modeling of Gallium Nitride HEMTs with Surface-Potential Based ASM-HEMT Model", accepted in IEEE International Symposium on Compound Semiconductors, Compound Semiconductor Week, June-July 2015.
A. Dasgupta, S. Ghosh, S. Khandelwal, and Y. S. Chauhan, "ASM-HEMT: Compact model for GaN HEMTs", accepted in IEEE Conference on Electron Devices and Solid-State Circuits (EDSSC2015), Singapore, June 2015.
K. Sharma, A. Dasgupta, S. Ghosh, S. A. Ahsan, S. Khandelwal, and Y. S. Chauhan, "Effect of Access Region and Field Plate on Capacitance behavior of GaN HEMT", accepted in IEEE Conference on Electron Devices and Solid-State Circuits (EDSSC2015), Singapore, June 2015.
H. Agarwal, C. Gupta, P. Kushwaha, C. Yadav, J. P. Duarte, S. Khandelwal, C. Hu, and Y. S. Chauhan, "Analytical Modeling and Experimental Validation of Threshold Voltage in BSIM6 MOSFET Model", accepted in IEEE Journal of Electron Devices Society, 2015.
H. Agarwal, S. Khandelwal, S. Dey, C. Hu, and Y. S. Chauhan, "Analytical Modeling of Flicker Noise in Halo Implanted MOSFETs", appearing in IEEE Journal of Electron Devices Society, 2015.
S. Khandelwal, J. P. Duarte, A. Medury, Y. S. Chauhan, and C. Hu, "New Industry Standard FinFET Compact Model for Future Technology Nodes", accepted in IEEE VLSI Technology symposium, Kyoto, June 2015.
S. Khandelwal, H. Agarwal, J. P. Duarte, K. Chan, S. Dey, Y. S. Chauhan, and C. Hu, "Modeling STI Edge Parasitic Current for Accurate Circuit Simulations", accepted in IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2015.
A. Dasgupta, S. Khandelwal, and Y. S. Chauhan, "Surface potential based Modeling of Thermal Noise for HEMT circuit simulation", appearing in IEEE Microwave and Wireless Components Letters, 2015.
P. Kushwaha, N. Paydavosi, S. Khandelwal, C. Yadav, H. Agarwal, J. P. Duarte, C. Hu and, Y. S. Chauhan, "Modeling the Impact of Substrate Depletion in FDSOI MOSFETs", Solid State Electronics, Vol. 104, Issue 2, Feb. 2015.
S. Ghosh, A. Dasgupta, S. Khandelwal, S. Agnihotri, and Y. S. Chauhan, "Surface-Potential-Based Compact Modeling of Gate Current in AlGaN/GaN HEMTs", IEEE Transactions on Electron Devices, Vol. 62, Issue 2, Feb. 2015
P. Rastogi, S. Kumar, S. Bhowmick, A. Agarwal and, Y. S. Chauhan, "Doping Strategies for Monolayer MoS2 via Surface Adsorption: A Systematic Study", ACS Journal of Physical Chemistry C, Vol. 118, Dec. 2014.
A. Dasgupta, S. Khandelwal, and Y. S. Chauhan, " Compact Modeling of Flicker Noise in HEMTs ", IEEE Journal of Electron Devices Society, Vol. 2, Issue 6, Nov. 2014.
S. Ghosh, K. Sharma, S. Khandelwal, S. Agnihotri, T. A. Fjeldly, F. M. Yigletu, B. Iniguez, and Y. S. Chauhan, "Modeling of Temperature Effects in a Surface-Potential Based ASM-HEMT model", accepted in IEEE International Conference on Emerging Electronics (ICEE), Bangalore, India, Dec. 2014.
P. Rastogi, S. Kumar, A. Agarwal, and Y. S. Chauhan, "Ab-initio study of doping versus adatom in monolayer MoS2", accepted in IEEE International Conference on Emerging Electronics (ICEE), Bangalore, India, Dec. 2014.
A. Dasgupta, C. Yadav, P. Rastogi, A. Agarwal and Y. S. Chauhan, "Analysis and Modeling of Quantum Capacitance in III-V Transistors", accepted in IEEE International Conference on Emerging Electronics (ICEE), Bangalore, India, Dec. 2014.
P. Kushwaha, C. Yadav, H. Agarwal, J. Srivatsava, S. Khandelwal, J. P. Duarte, C. Hu and Y. S. Chauhan, "BSIM-IMG with Improved Surface Potential Calculation Recipe", accepted in IEEE India Conference (INDICON), Pune, India, Dec. 2014.
C. Yadav, P. Kushwaha, H. Agarwal, Y. S. Chauhan, "Threshold Voltage Modeling of GaN Based Normally-Off Tri-gate Transistor", accepted in IEEE India Conference (INDICON), Pune, India, Dec. 2014.
H. Agarwal, Y. S. Chauhan, "Flicker Noise Modeling in BSIM6 Compact Model", MOS-AK Workshop, Venice, Italy, Sept. 2014.
Y. S. Chauhan, "Compact Modeling of FinFET and Ultra-Thin-Body devices", INUP Workshop on Compact Modeling, Bangalore, August 2014.
S. Khandelwal, J. P. Duarte, Y. S. Chauhan, and C. Hu, " Modeling 20nm Germanium FinFET with the Industry Standard FinFET Model ", IEEE Electron Device Letters, Vol. 35, Issue 7, July 2014.
Y. S. Chauhan, P. Kushwaha, S. Khandelwal, C. Yadav, N. Paydavosi, J. P. Duarte and C. Hu, "BSIMIMG: COMPACT MODEL FOR UTBBSOI MOSFETs", Workshop on Compact Modeling, Washington D.C., USA, June 2014. (Invited)
S. Khandelwal, J. P. Duarte, N. Paydavosi, Y. S. Chauhan, J. J. Gu, M. Si, P. D. Ye, and C. Hu, "InGaAs FinFET Modeling Using Industry Standard Compact Model BSIM-CMG", Workshop on Compact Modeling, Washington D.C., USA, June 2014.
C. Yadav, P. Kushwaha, S. Khandelwal, J. P. Duarte, Y. S. Chauhan, and C. Hu, " Modeling of GaN based Normally-off FinFET ", IEEE Electron Device Letters, Vol. 35, Issue 6, June 2014.
H. Agarwal, S. Khandelwal, Y. S. Chauhan, and C. Hu, "Noise Modeling in BSIM6 Compact Model", Workshop on Compact Modeling, Washington D.C., USA, June 2014.
C. Yadav, S. Khandelwal, and Y. S. Chauhan, "Modeling of AlGaN/GaN FinFET", Workshop on Compact Modeling, Washington D.C., USA, June 2014.
Y. S. Chauhan, "Semiconductor industry: CMOS technology and beyond", Motilal Nehru National Institute of Technology Allahabad, April 2014.
Y. S. Chauhan, S. Venugopalan, M.-A. Chalkiadaki, M. A. Karim, H. Agarwal, S. Khandelwal, N. Paydavosi, J. P. Duarte, C. C. Enz, A. M. Niknejad and C. Hu, " BSIM6: Analog and RF Compact Model for Bulk MOSFET", IEEE Transactions on Electron Devices, Vol. 61, Issue 2, Feb. 2014. (Invited)
A. Dutta, S. Sirohi, T. Ethirajan, H. Agarwal, Y. S. Chauhan, R. Q Williams, "BSIM6 - Benchmarking the Next Generation MOSFET Model for RF Applications", IEEE International Conference on VLSI Design, Mumbai, India, Jan. 2014.
J. R. Sahoo, H. Agarwal, C. Yadav, P. Kushwah, S. Khandewal, R. Gillon, Y. S. Chauhan, "High Voltage LDMOSFET Modeling using BSIM6 as Intrinsic-MOS Model", IEEE PrimeAsia, Visakhapatnam, Dec. 2013. (Gold Leaf Certificate)
S. Agnihotri, S. Ghosh, A. Dasgupta, S. Khandewal, Y. S. Chauhan, "A Surface Potential based Model for GaN HEMTs", IEEE PrimeAsia, Visakhapatnam, Dec. 2013. (Gold Leaf Certificate)
S. Khandelwal, C. Yadav, S. Agnihotri, Y. S. Chauhan, A. Curutchet, T. Zimmer, J.-C. Dejaeger, N. Defrance and T. A. Fjeldly, "A Robust Surface-Potential-Based Compact Model for GaN HEMT IC Design", IEEE Transactions on Electron Devices, Vol. 60, Issue 10, Oct. 2013.
N. Paydavosi, S. Venugopalan, Y. S. Chauhan, J. P. Duarte, S. Jandhyala, A. M. Niknejad and C. Hu, "BSIM - SPICE Models Enable FinFET and UTB IC Designs", IEEE Access, 2013.
H. Agarwal, S. Venugopalan, M. Chalkiadaki, N. Paydavosi, J. P. Duarte, S. Agnihotri, C. Yadav, P. Kushwaha, Y. S. Chauhan, C. C. Enz, A. Niknejad and C. Hu, "Recent Enhancements in BSIM6 Bulk MOSFET Model", IEEE International Conference on Simulation of Semiconductor Processes and Devices (SISPAD), Glasgow, Scotland, Sept. 2013.
Y. S. Chauhan, S. Venugopalan, N. Paydavosi, P. Kushwaha, S. Jandhyala, J. P. Duarte, S. Agnihotri, C. Yadav, H. Agarwal, A. Niknejad and C. Hu, "BSIM Compact MOSFET Models for SPICE Simulation", IEEE International Conference Mixed Design of Integrated Circuits and Systems (MIXDES), Gdynia, Poland, June 2013. (Invited)
Y. S. Chauhan, "Industry Standard SPICE Modeling", Solid State Physics Laboratory (SSPL) - DRDO, Delhi, June 2013.
S. Khandelwal, S. Sharma, Y. S. Chauhan, T. Gneiting and T. A. Fjeldly, "Modeling and Simulation Methodology for SOA Aware Circuit Design in DC and Pulsed-Mode Operation of HV MOSFETs", IEEE Transactions on Electron Devices, Vol. 60, Issue 2, Feb. 2013.
Y. S. Chauhan, M. Chalkiadaki, S. Venugopalan, M. A. Karim, N. Paydavosi, S. Jandhyala, J. P. Duarte, C. Enz, A. Niknejad, C. Hu, "Global Geometrical Scaling in BSIM6", MOS-AK Workshop, San Francisco, Dec. 2012.
S. Khandelwal, Y. S. Chauhan, T. A. Fjeldly, "Analytical Modeling of Surface-Potential and Intrinsic Charges in AlGaN/GaN HEMT Devices", IEEE Transactions on Electron Devices, Vol 59, Issue 8, Oct. 2012.
Y. S. Chauhan, R. Gillon, M. Declercq, A. M. Ionescu, "Impact of Lateral Nonuniform Doping and Hot Carrier Injection on Capacitance Behavior of High Voltage MOSFETs", IETE Technical Review, Vol. 25, Issue 5, pp. 244-250, Sept.-Oct 2008.
M. A. Karim, Y. S. Chauhan, S. Venugopalan, A. B. Sachid, D. D. Lu, B.-Y. Nguyen, O. Faynot, A. M. Niknejad and C. C. Hu, "Extraction of Isothermal Condition and Thermal Network in UTBB SOI MOSFETs", IEEE Electron Device Letters, Vol. 33, No. 9, Sept. 2012.
M.-A. Chalkiadaki, A. Mangla, C. C. Enz, Y. S. Chauhan, M. A. Karim, S. Venugopalan, A. Niknejad, C. Hu, "Evaluation of the BSIM6 Compact MOSFET Modelʹs Scalability in 40nm CMOS Technology", IEEE European Solid-State Device Research Conference, Bordeaux, France, Sept. 2012.
Y. S. Chauhan, S. Venugopalan, M. A. Karim, S. Khandelwal, N. Paydavosi, P. Thakur, A. M. Niknejad and C. C. Hu, "BSIM - Industry Standard Compact MOSFET Models", IEEE European Solid-State Device Research Conference, Bordeaux, France, Sept. 2012. (Invited)
Y. S. Chauhan, M. A. Karim, A. Niknejad, C. Hu, "Thermal Network Extraction in Ultra-Thin-Body SOI MOSFETs", MOS-AK Workshop, Bordeaux, France, Sept. 2012.
S. Khandelwal, Y. S. Chauhan, D. D. Lu, S. Venugopalan, M. A. Karim, A. B. Sachid, B.-Y. Nguyen, O. Rozeau, O. Faynot, A. M. Niknejad and C. C. Hu, "BSIM-IMG: A Compact Model for Ultra-Thin Body SOI MOSFETs with Back-Gate Control", IEEE Transactions on Electron Devices, Vol. 59, Issue 8, pp. 2019-2026, Aug. 2012

Faculty

Dr. Yogesh Singh Chauhan

Post Doc Students

Sudip Ghosh
Tapas Dutta

PhD Students

Chandan Yadav
Pragya Kushwaha
Shantanu Agnihotri
Harshit Agarwal
Priyank Rastogi
Sheikh Aamir Ahsan
Avirup Dasgupta
Girish pahwa
Chetan Gupta
Prateek Jain
Dinesh R
K.L.N. Acharya (Visiting Researcher)

MTech Students

Piyush Kumar
Noor Mohamed E V
Jayadeepthi B
Mahendra Jalkhediya
Kurnikamarthi Omprakash
Rajender Nune
Boyina Sri Syamalaraju
Shalini Dey
Yogendra Sahu
Rahul Agrawal
Mayank Agarwal

Research Associates

Shivendra Singh Parihar
Chetan Kumar Dabhi

Contact Person

Mr. Mukesh Rawat
Ph: 0512-679-7257
Location: WL 215

Details: Last Updated: Friday, 23 August 2024 12:02

Research

Optical Fibre Communication
Quantum key distribution
Quantum and Nonlinear fibre optics

Facilities

10 Gbps External Mach-Zehnder Optical Modulator
40 Gbps DQPSK Optical Modulator
Agilent 86142B Optical Spectrum Analyzer
Fiber Polarization Controller FPC030
Net Test 50LS8335XX Optical Test Source (Fabry-Perot Laser diode, 1550nm)
Net Test Power Meters
Optical Amplifier contains
Amp 901 type B2
DB9 Connectors(2 pic)
LDC & TEC Driver
Power Chord(2 pic)
Optical Bread boards
Optical fibres (MMF: 20 km, SMF: 5km, SMSP: 200m)
Optical mounts and translation stages

Projects

Optical Device Characterization and Fibre Optics Virtual Lab, (Joseph John and Pradeep Kumar) Sponsored Project from MHRD on National Mission on Education through ICT
Protection Devices for Urban and Rural Exchanges, (Joseph John) BSNL project
Decoy state method for frequency-coded QKD (Pradeep Kumar) Initiation grant from IIT Kanpur
Fiber-optic entangled photon pair generation for generation for quantum key distribution and quantum optics

Publications

Kumar. P and Prabhakar. A, "Evolution of quantum states of light in an electro-optic phase modulator", IEEE Journ. of Quantum Electronics, Feb, Vol 45, 2009
Kumar. P and Prabhakar. A, "Bit error rate of a frequency coded quantum key distribution system", Optics Communications, Vol 282, No 18, pp. 3827-3833, 2009
Kumar. P, "Optical modulation schemes for frequency-coded quantum key distribution", To appear, National Conf on Communications, NCC, Jan 2010
Kumar. P and Prabhakar. A, "All-fibre autocorrelator for optical pulse width measurement", Proc. SPIE, Vol. 6875, 68751F, 2008
Kumar. P and Prabhakar. A, "All-fibre autocorrelator for optical pulse width measurement", Proc. SPIE, Vol. 6875, 68751F, 2008
Kumar. P and Prabhakar. A, "Bit error rate of a frequency coded quantum key distribution system", National Conf. on Communication, IIT Guwahati, Guwahati, India, 2009
Kumar. P and Prabhakar. A, "Dispersion measurement of single mode optical fibre using intensity modulators", Proc. of 13th National Conf. on Communications, IIT Kanpur, Kanpur, India, 2007
Bhattacharya. S and Kumar. P, "Decoy-state method for N-channel SCM FC-QKD", Frontiers in Optics, Rochester, Oct 2012 (Accepted for presentation)
Anchal. A and Kumar. P, "Bidirectional pumping for entangled photons", Nonlinear Photonics (OSA Topical Meeting), Colorado, June 2012
Kumar. P, "Quantum computing using magneto-optic Kerr effect", Proc. of International Conference on Quantum Optics and Quantum Computing (ICQOQC), Madrid, March 2012
Bhattacharya. S, Pandey. P, and Kumar. P, "Decoy-pulse protocol for frequency-coded quantum key distribution", Proc. of International Conference on Quantum Optics and Quantum Computing (ICQOQC), Madrid, March 2012
Bhattacharya. S and Kumar. P, "Decoy-pulse protocol for frequency-coded quantum key distribution", Proc. of National Conf on Communications, NCC, Jan 2012
Kumar. P and Prabhakar. A, "Frequency-coded scheme for BB84 QKD protocol using spin wave--optical interactions", Proc. of SPIE Photonics West, San Diego, USA, Jan 2011

Faculty

Dr. Pradeep Kumar K

PhD Students

Syed Tajammul Ahmad

MTech Students

Alok Jangid
Ankit Lodha
Arvind Kumar
Mukund Kumar
Ashish Vyas

Contact Person

Dr. Pradeep Kumar K
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: 91-512-259-7570
Location: ACES 323 and 327

Research

Multiquantum Well Intermixed Waveguide Grating Assisted Couplers
High Speed Waveguide Photodiodes
Photodiode Arrays
SiGeC/SiC Quantum Dash LEDs on silicon by spin-on technique
Laser assisted vision through Fog

Facilities

Facilities for Optoelectronics Laboratory:
- Optical Bench and Optical waveguiding setup
- Ps-pulsed laser source at 980nm, 1550nm, and 400nm
- Sorption pump
- CO2 laser (10W)
- Laser Scanner (1kHz)
- MCT detectors (4kHz, 4kV/W)
- Motorized positioners(0.1micron)for optical waveguide measurements
- Data acquizition cards and systems (GHz)
- Tunable laser (1270-1650nm)
- Lock-in AmplifiersOscilloscopes (60MHz)
- Signal Generators
- Power Supplies
- Blue DPSS laser
- White light source
Facilities for Nanotechnology Laboratory:
- MJB3 Mask Aligner (i-line, 3inch substrates)
- Baking Oven
- Ziess Microscope (50X obj)
- Photoresist Spinner (4800rpm)
- Optical surface profiler (vertical 0.01nm, Horizontal 2.5micron)
- Millipore Ultrapure water system
- Reactive Ion Etch System (Methane Chenistry)
- E-Beam evaporator (turbopump driven, 6kW, 4pocket, 6cc)
- Class 100 Developing Station, Acid station, and Solvent ststion
- Ultrasonic cleaner
Rapid thermal anneal (RTA) system

Publications

"Design of a Grating-Assisted Lateral Directional Coupler by Impurity-Induced Quantum Well Intermixing of InGaAs/GaAs", A. V. Barve and U. Das, Special Issue, joint publication of IEEE J. Lightwave Technol., 25, 2448(2007) and Optical Society of America.
"Optical Quality SiC nano-structures by Spin-On Technique and Anneal on Si", A Mondal and U Das, J. Phys. D: Appl. Phys. 42, 234002-234006 (2009).
Quantum well intermixed waveguide grating", R. Sonkar and U. Das, Optical and Quantum Electronics, 42, No.9-10, pp.631-643(Sept. 2011)
"Experimental Study of the Effects of Environmental and Fog Condensation Nuclei Parameters on the Rate of Fog Formation and Dissipation Using a New Laboratory Scale Fog Generation Facility", V. P. Singh, T. Gupta, S. N. Tripathi, C. Jariwala, and U. Das, Aerosol and Air Quality Res., 11, 140-154 (2011)
"40GHz Integrated MQW Intermixed Waveguide Photodiodes", T. Bhowmick and U. Das, Poster No. OP-P.25, IWPSD 2011, Dec. 19-22, 2011, IIT Kanpur, Kanpur, UP, India. [Best Poster Award]
"Growth of SiC Nano-Crystals on H-Terminated Si(100)3o Substrate Surface Steps", D. Jain, C. Sandeep, and U. Das, Poster No. OP-P.27, IWPSD 2011, Dec. 19-22, 2011, IIT Kanpur, Kanpur, UP, India
"Fabrication of Waveguide Grating", S. Sonkar and U. Das, Presentation No. OP-O.04, IWPSD 2011, Dec. 19-22, 2011, IIT Kanpur, Kanpur, UP, India

Faculty

Utpal Das

PhD Students

Viswas Nair
Sona Das

MTech Students

Shah Mithil Dipak Bhai
Sonu Kumar
Nagendra Pratap Yadav(PSE)
Madduri Suresh
Omkar Balasahib Mane
Shikha Ahirwar
Rahul Kumar Gautam
Ravi Kumar Verma
Rahul Shaw
Saket Wankhade

Contact Person

Utpal Das
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Phone: 91(512)259-7360
Location:

ACES 122/123 (Nano Fabrication Laboratory)
ACES 129 (Optoelectronics Laboratory)

Projects

Sponsored Ongoing Project
BRNS: Shape-based fluorescence optical tomography for grading of dysplasia in cervical cancer progression
(10.9.2013 - 09.09.2016; PI: Dr Naren Naik, co-PI: Dr Asima Pradhan, Dept. of Physics, IIT-Kanpur)t
Institute Grant Ongoing Project
Electrical Impedance Tomography Data Collection Set-up
Sponsored Completed Project
ISRO: Model based tomographic subsurface soil characterization
(25.07.2012 - 25.09.2014; PI: Dr Naren Naik)

Application Collaborators

Mr. Tapan Mishra, SAC, Ahmedabad
Dr. Asima Pradhan, Department of Physics, IIT Kanpur
Dr. Shivam Tripathi, Department of Civil Engineering, IIT Kanpur

Publications

Naren Naik, Rick Beatson, Jerry Eriksson, and Elijah van Houten, "An implicit radial basis function based reconstruction approach to electromagnetic shape-tomography," Inverse Problems, 25(2):025004, February 2009.
N. Naik, J. Eriksson, P. de Groen, and H. Sahli, "A nonlinear iterative reconstruction and analysis approach to shape-based approximate electromagnetic tomography," IEEE Trans. Geosc. and Rem. Sens., 46(5):1558-1574, 2008.
Naren Naik, R. M. Vasu, and M. R. Ananthasayanam, "Single-resolution and multiresolution extended-Kalman-filter-based reconstruction approaches to optical refraction tomography," Applied Optics, 49(6), 20 February 2010.
Ashwin Yadav, Peeyush Awasthi, Naren Naik, and M.R. Ananthasayanam, "A constant gain Kalman filter approach to track maneuvering targets," The 2013 IEEE Multi- Conference on Systems and Control (MSC 2013), 28-30 Aug 2013, Hyderabad, India.
Ashwin Yadav, Naren Naik, M.R. Ananthasayanam, Abhinav Gaur, and Y.N. Singh, "A constant gain Kalman filter approach to target tracking in wireless sensor networks," IEEE 7th Intl. Conf. on Industrial and Information Systems, 6-9 Aug 2012, I.I.T., Madras, Chennai, India.

Faculty

Dr Naren Naik

PhD Students

Prabodh Pandey
Nishigandha Patil
Omprakash Gottam
Abhinav Bharadwaj

MTech Students

Gaurav Nandode
T Viswanath
J Bharani Bharadwaj

Contact Person

Dr Naren Naik
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Office Phone: 91(512)259-6518
Fax: 91(512)259-0260
Location:

303A ACES,
Department of Electrical Engineering,
Indian Institute of Technology, Kanpur
UP, India-208016

Details: Last Updated: Monday, 03 March 2025 15:10

Welcome to the RF, Microwave and Photonics Group of EE Dept. of IIT Kanpur. The RF, Microwave and Photonics Group uniquely offers academic training and research expertise in RF, Microwave and Photonics engineering ranging from microwave passive and active devices to optoelectronic integrated devices. Major group objectives include Encouraging scientific exchanges amongst academia and industry within the field of RF, Microwave & Photonics. Providing research support and consultation for industry and other government organizations. Enhance the awareness of RF/Microwave Engineering and optical science and to students outside of the field of RF/Microwave and optics. Organizing seminars and workshops with an aim to promote research lifestyle to the student community and enhance the spirit of research by eminent Professors.

Encouraging scientific exchanges amongst academia and industry within the field of RF, Microwave & Photonics.

Providing research support and consultation for industry and other government organizations.

Enhance the awareness of RF/Microwave Engineering and optical science and to students outside of the field of RF/Microwave and optics.

Organizing seminars and workshops with an aim to promote research lifestyle to the student community and enhance the spirit of research by eminent Professors.

Research Areas: Phased Array Antenna, RFID Antenna,Microwave Imaging and Remote Sensing, High Impedance Surface (HIS), Frequency Selective Surface (FSS), Three-dimensional Antennas, Reconfigurable Antennas

Facilities

Computing and Simulating facilities

IE3D: IE3D is a full-wave, method-of-moments based electromagnetic simulator which solves the current distribution on 3D and multilayer structures of general shape. It is used in the design of MMICs, RFICs, LTCC circuits, microwave/millimeter-wave circuits, IC interconnects and packages, HTS circuits, patch antennas, wire antennas, and other RF/wireless antennas.
WIPLD: WIPL-D is a software for Circuit and 3D EM Simulation for RF & Microwave Applications. WIPL-D is a frequency domain method of moments (MoM) code that enables very accurate and fast EM simulation of arbitrary 3D structures for predicting antenna performance (free space and in-situ) and radar cross section (RCS). WIPL-D employ higher order basis functions (HOBF) that allow for a great reduction (3 to 10 times) in the number of unknowns required to model a given problem.
HFSS: The HFSS stands for High Frequency Strucutre Simulator.HFSS is a high performance full wave electromagnetic (EM) field simulator for arbitrary 3D volumetric passive device modelling . It integrates simulation,visualization, solid modelling, and automation where solutions to the 3D EM problems are quickly and accurately obtained.HFSS can be used to calculate parameters such as S-Parameters,Resonant Frequency, and Fields. Its typical uses include:Package Modelling - BGA, QFP, Flip-Chip PCB Board Modelling - Power/ Ground planes, Mesh Grid Grounds,Backplanes, Silicon/GaAs-Spiral Inductors, Transformers, EMC/EMI - Mobile Communications - Patches, Dipoles, Horns, ConformalCell Phone Antennas, Quadrafilar Helix, Specific Absorption Rate ( SAR),Infinite Arrays, Radar Section (RCS), Frequency Selective Surface (FSS) Connectors - Coax, SFP/XFP, Backplane, Transitions? Waveguide - Filters, Resonators, Transitions, Couplers.

Contact Person

Dr. A. R. Harish
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Tel: +91-512-2597569
Fax: +91-512-2590063

Location: ACES 223
Lab Contact No:6073

Research Areas:

Microwave Metamaterial Absorbers (Multi-band and Broadband)
Frequency Selective Surface (FSS) and Metamaterial-based Polarizers.
Multi-band and Multi-polarized Antennas.
Antenna Arrays and MIMO Antennas
Microwave Metamaterial Cloaking.
Finite Difference Time Domain (FDTD) Technique.

Facilities

Software Package: Ansys High Frequency Structure Simulator (HFSS) v. 15, COMSOL Multiphysics 5.2.
Equipment:Agilent PNA N5222A Vector Network Analyzer (10 MHz - 26.5 GHz), Waveguide Horn Antennas (From VidyutYantraUdyog) (Bands: S,C,J,X,Ku,K).
Computing Facilities: 14 Workstations.

Publications

Journals 2015

Saptarshi Ghosh, and Kumar Vaibhav Srivastava, "An Equivalent Circuit Model of FSS Based Metamaterial Absorber using Coupled Line Theory," IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 511-514, 2015.
Saptarshi Ghosh, Somak Bhattacharyya, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "An Ultra-wideband Ultra-thin Metamaterial Absorber Based on Circular Split Rings," IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 1172-1175, 2015.
Soumava Mukherjee, Animesh Biswas and Kumar Vaibhav Srivastava, "Substrate Integrated Waveguide Cavity Backed Dumbbell Shaped Slot Antenna for dual frequency applications," IEEE Antennas and Wireless Propagation Letters, vol. 14, pp. 1314-1317, 2015.
Prachi, Raghvendra Kumar Chaudhary and Kumar Vaibhav Srivastava, "Circularly Polarized Bowtie-shaped Dielectric Resonator Antenna Excited with Asymmetric Cross Slot," Microwave and Optical Technology Letters, vol. 57, no. 7, pp. 1723-1727, July 2015.
Somak Bhattacharyya, Saptarshi Ghosh, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "A Wide-Angle Broadband Microwave Metamaterial Absorber with Octave Bandwidth." IET Microwave, Antenna and Propagation, vol. 9, no. 11, pp. 1160-1166, 2015.
Sanampudi Venkatrami Reddy, Debdeep Sarkar, Kushmanda Saurav and Kumar Vaibhav Srivastava, "LC Resonator loaded Bandwidth Enhanced Tri-band Planar Inverted-F Antenna," Microwave and Optical Technology Letters, 2015, vol. 57, no. 8, pp. 1879-1883, August 2015.
Prachi, Raghvendra Kumar Chaudhary and Kumar Vaibhav Srivastava, "Rounded Bevel shaped Fed Cylindrical Dielectric Resonator Antenna for Wideband Applications," Microwave and Optical Technology Letters, vol. 57, no. 10, pp. 2364-2368, October 2015.
Archana Rajput and Kumar Vaibhav Srivastava, "Bandwidth Enhancement of Transformation Optics Based Cloak with Reduced Parameters," Springer: Applied Physics A, vol. 120, pp. 663-668, 2015.
Anamiya Bhattacharya, Somak Bhattacharyya, Saptarshi Ghosh, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "An Ultra-thin Penta-Band Polarization-Insensitive Compact Metamaterial Absorber for Airborne Radar Application," in Microwave and Optical Technology Letters, vol. 57, no. 11, pp. 2519-2524, Nov. 2015.
Saptarshi Ghosh, Somak Bhattacharyya, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "Polarization-insensitive and Wide-angle Multilayer Metamaterial Absorber with Variable Bandwidths," IET Electronics Letters, vol. 51, no. 14, pp. 1050-1052, 2015.
Archana Rajput and Kumar Vaibhav Srivastava, "Dispersion study on scattering cross section of metamaterial cloak due to various cloaking parameters," in Optik - International Journal for Light and Electron Optics, vol. 126, pp. 2362-2367, 2015.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas, "Multi-band Cylindrical Dielectric Resonator Antenna using Permittivity Variation in Azimuth Direction," Progress In Electromagnetics Research (PIER) C, vol. 59, pp. 11-20, 2015.
Kushmanda Saurav, Debdeep Sarkar, Aditya Singh, and Kumar Vaibhav Srivastava, "Multi-Band Circularly Polarized Cavity Backed Crossed Dipole Antenna," in IEEE Transactions on Antennas and Propagation, vol. 63, no. 10, pp. 4286-4296, 2015.
Debdeep Sarkar, Aditya Singh, Kushmanda Saurav and Kumar Vaibhav Srivastava, "A Four Element Quad-band MIMO Antenna Employing Split Ring Resonator and Interdigital Capacitor," in IET Microwave, Antenna and Propagation, vol. 9, no. 13, pp. 1453-1460, 2015.

2014

Somak Bhattacharyya, Saptarshi Ghosh, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "Bandwidth-Enhanced Dual-Band Dual-Layer Polarization-Independent Ultra-thin Metamaterial Absorber," accepted for publication in Springer: Applied Physics A.
Saptarshi Ghosh, and Kumar Vaibhav Srivastava, "An Equivalent Circuit Model of FSS Based Metamaterial Absorber using Coupled Line Theory," accepted for publication in IEEE Antennas and Wireless Propagation Letters.
Devkinandan Chaurasiya, Saptarshi Ghosh, Somak Bhattacharyya, and Kumar Vaibhav Srivastava, "An Ultra-thin Quad-Band Polarization-Insensitive Wide-Angle Metamaterial Absorber," accepted for publication in Microwave and Optical Technology Letters.
Debdeep Sarkar, Kushmanda Saurav and Kumar Vaibhav Srivastava, "Multi-band Microstrip-fed Slot Antenna Loaded with a Split-ring resonator (SRR)," accepted for publication in IET Electronics Letters.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas, "Variation of Permittivity in Radial Direction in Concentric Half-split Cylindrical Dielectric Resonator Antenna for Wideband Application," accepted for publication in International Journal of RF and Microwave Computer-Aided Engineering.
Kushmanda Saurav, Debdeep Sarkar and Kumar Vaibhav Srivastava, "Dual Band Circularly Polarized Cavity Backed Crossed Dipole Antennas," accepted for publication in IEEE Antennas and Wireless Propagation Letters.
Sanampudi Venkatrami Reddy, Debdeep Sarkar, Kushmanda Saurav and Kumar Vaibhav Srivastava, "A Compact CRLH Unit Cell Loaded Triple-Band Monopole Antenna," accepted for publication in Microwave and Optical Technology Letters.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and A. Biswas, "A Broadband Dumbbell-Shaped Dielectric Resonator Antenna," in Microwave and Optical Technology Letters, vol. 56, Issue. 12, pp. 2944-2947, Dec. 2014.
Archana Rajput and Kumar Vaibhav Srivastava, "Design of 2D metamaterial Cloak with Minimum Scattering using Quadratic Transformation Function", in Journal of Applied Physics, vol. 116, 124501, Sept 2014.
Somak Bhattacharyya, Saptarshi Ghosh and Kumar Vaibhav Srivastava, "Equivalent Circuit Model of an Ultra-thin Polarization-Independent Triple Band Metamaterial Absorber," in AIP Advances, vol. 4, 097127, 2014.
Kushmanda Saurav, Debdeep Sarkar and Kumar Vaibhav Srivastava, "Dual Polarized Dual Band Patch Antenna Loaded with Modified Mushroom Unit Cell," in IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 1357-1360, 2014.
Soumava Mukherjee, Animesh Biswas and Kumar Vaibhav Srivastava, "Broadband Substrate Intergated Waveguide Cavity Backed Bow-Tie Slot Antenna," in IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 1152-1155, 2014.
Kushmanda Saurav, Debdeep Sarkar and Kumar Vaibhav Srivastava, "CRLH Unit-Cell Loaded Multi-Band Printed Dipole Antenna," in IEEE Antennas and Wireless Propagation Letters, vol. 13, pp. 852-855, 2014.
Prasun Chongder, Kumar Vaibhav Srivastava and Animesh Biswas, "Realization of Controllable Transmission Zeros by Perturbation Technique for Designing Dual-Mode Filter using Substrate Integrated Hexagonal Cavity (SIHC)," in IET (formerly IEE Proceedings) Microwave, Antenna and Propagation, vol. 8, issue 6, pp. 451-457, April 2014.

2013

Somak Bhattacharyya, Saptarshi Ghosh and Kumar Vaibhav Srivastava, "Triple Band Polarization-Independent Metamaterial Absorber with Bandwidth Enhancement at X-band," in Journal of Applied Physics, vol. 114, 094514, 2013.
Alok Kumar Saxena and Kumar Vaibhav Srivastava, "Stability and Dispersion Analysis of Higher Order Unconditionally Stable 3-Step LOD-FDTD Method" in IET (formerly IEE Proceedings) Microwave, Antenna and Propagation, vol. 7, Issue 12, pp. 954-960, 2013 .
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas, "A Practical Approach: Design of Wideband Cylindrical Dielectric Resonator Antenna with Permittivity Variation in Axial Direction and its Fabrication using Microwave Laminates", in Microwave and Optical Technology Letters, Vol. 55, Issue. 10, pp. 2282-2188, Oct. 2013.
Somak Bhattacharyya, Saptarshi Ghosh and Kumar Vaibhav Srivastava, "Bandwidth Enhanced Metamaterial Absorber using Electric Field Driven LC Resonator for Airborne Radar Applications," in Microwave and Optical Technology Letters, Vol. 55, Issue 9, pp. 2131-2137, Sept. 2013.
Raghvendra Kumar Chaudhary, Rajnish Kumar and Kumar Vaibhav Srivastava, "Wideband Annular Shape Microstrip Fed Ring Dielectric Resonator Antenna," in IEEE Antenna and Wireless Propagation Letters, Vol. 12, pp. 595-598, 2013.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas, "Broadband Four-element Multi-layer Multi-permittivity Cylindrical Dielectric Resonator Antenna", in Microwave and Optical Technology Letters, Vol. 55, Issue 4, pp. 932-937, April 2013.

2012

Tannu Gupta, A Sudha Madhuri, Prachi, M Jaleel Akhtar and K Vaibhav Srivastava, "Development of the Virtual Lab Module for Understanding the Concepts of Electric and Magnetic Field Patterns in Rectangular Waveguides and Cavities", International Journal of Online Engineering, Vol 8, No 3, 2012.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas, "Wideband Multi-layer Multi-permittivity Half-split Cylindrical Dielectric Resonator Antenna ", in Microwave and Optical Technology Letters Vol. 54, No. 11, pp. 2587-2590, Nov. 2012
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas, "Three-element Multi-layer Multi-permittivity Cylindrical Dielectric Resonator Antenna for Wideband Applications with Omnidirectional Radiation Pattern and Low Cross-polarization",in Microwave and Optical Technology Letters, Vol. 54, Issue 9, pp. 2011-2016, Sept. 2012.
Raghvendra Kumar Chaudhary, H. B. Baskey, Kumar Vaibhav Srivastava and Animesh Biswas, "Synthesis and Microwave Characterization of (Zr0.8Sn0.2)TiO4 Epoxy Composite and its Application in Wideband Stacked Rectangular Dielectric Resonator Antenna", IET Microwave, Antenna and Propagation Vol. 6, Issue 7, pp. 740-746, May 2012 .
G. K. Singh, Raghvendra Kumar Chaudhary and K. V. Srivastava, "A Compact Zeroth Order Resonating Antenna Using Complementary Split Ring Resonator With Mushroom Type of Structure," Progress In Electromagnetics Research (PIER) Letters, Vol. 28, pp. 139-148, 2012. (PIER_Jan_2012)

2011

R. K. Chaudhary, V. V. Mishra, K. V. Srivastava and A. Biswas, "Improved Spurious Free Performance of Multi-layer Multi-permittivity Dielectric Resonator in MIC Environment," Progress in Electromagnetics Research B, vol. 30, pp. 135-156, 2011. (PIER_B_May_2011)

Conferences
2015

Kushmanda Saurav, Sanampudi Venkatrami Reddy, Debdeep Sarkar, Archana Rajput, Kumar Vaibhav Srivastava, "Triple Band Planar Inverted-F Antenna Loaded with LC resonator," in 2015 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (APS-URSI 2015) in Vancouver, British Columbia, Canada, July 19-25, 2015.
Debdeep Sarkar, Kushmanda Saurav, Archana Rajput, Kumar Vaibhav Srivastava, "A Metamaterial-inspired Triple Band Dual Polarized Monopole Antenna," in 2015 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (APS-URSI 2015) in Vancouver, British Columbia, Canada, July 19-25, 2015.
Archana Rajput, Pravallika Vura, Kushmanda Saurav, Kumar Vaibhav Srivastava, "Effect on Scattering Cross Section for Scaled Antiobject and Coordinate Transformed Antiobject in External Cloaking," in 2015 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (APS-URSI 2015) in Vancouver, British Columbia, Canada, July 19-25, 2015.
Pravallika Vura, Archana Rajput, Kushmanda Saurav, Kumar Vaibhav Srivastava, "Hexagonal Shaped Reciprocal External Cloak With Homogeneous Material Properties," in 2015 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (APS-URSI 2015) in Vancouver, British Columbia, Canada, July 19-25, 2015.
Saptarshi Ghosh, Somak Bhattacharyya, Yadunath Kaiprath, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "Triple-Band Polarization-Independent Metamaterial Absorber using Destructive Interference" in 45th European Microwave Conference (EuMW), Paris, France, 6-11 Sept, 2015.
Aditya Singh, Debdeep Sarkar, Kushmanda Saurav, Kumar Vaibhav Srivastava, "Triple Band Circularly Polarized Printed Crossed Dipole Antenna Employing Interdigital Capacitors," in IEEE UP Section Conference on Electrical, Computer and Electronics (IEEE UPCON 2015), IIIT Allahabad, India, 4-6 December, 2015.
Hemant Suthar, Debdeep Sarkar, Kushmanda Saurav and Kumar Vaibhav Srivastava, "A High Gain and Wideband Directional Antenna using Z-shaped Near Zero-Index Metamaterial (NZIM) Resonators," accepted for presentation in IEEE UP Section Conference on Electrical, Computer and Electronics (IEEE UPCON 2015), IIIT Allahabad, India, 4-6 December, 2015.
Sanampudi Venkatrami Reddy, Kushmanda Saurav, Debdeep Sarkar and Kumar Vaibhav Srivastava, "Design of Compact Planar Inverted-F Antennas Loaded with LC Resonators," in IEEE UP Section Conference on Electrical, Computer and Electronics (IEEE UPCON 2015), IIIT Allahabad, India, 4-6 December, 2015.
Debdeep Sarkar, Kushmanda Saurav, Kumar Vaibhav Srivastava and Seema Awasthi, "A Compact Penta-band CPW-fed Monopole Antenna using LC Resonator and Interdigital Capacitor," in IEEE Applied Electromagnetics Conference 2015 (AEMC-2015), IIT Guwahati, India, Dec 2015.
Kushmanda Saurav, Debdeep Sarkar, Kumar Vaibhav Srivastava and Seema Awasthi, "Triple Band Circularly Polarized Cavity Backed Crossed Dipole Antenna," in IEEE Applied Electromagnetics Conference 2015 (AEMC-2015), IIT Guwahati, India, Dec 2015.
Yashika Sharma, Debdeep Sarkar, Kushmanda Sauravand Kumar Vaibhav Srivastava, "Quad Band Annular slot and SRR based MIMO Antenna System," in IEEE Applied Electromagnetics Conference 2015 (AEMC-2015), IIT Guwahati, India, Dec 2015.
Durga Kumar, Rabindra Kumar Singh, Kushmanda Saurav, Debdeep Sarkar and Kumar Vaibhav Srivastava, "Gain Enhancement of Four Edges Gap-coupled Microstrip Antenna using I-Shaped Resonators as Superstrate," in IEEE Applied Electromagnetics Conference 2015 (AEMC-2015), IIT Guwahati, India, Dec 2015.
Somak Bhattacharyya, Saptarshi Ghosh, Anamiya Bhattacharya, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "An Ultra-thin Polarization Independent Compact Fractal Shaped Metamaterial Absorber in IEEE Applied Electromagnetics Conference 2015 (AEMC 2015), IIT Guwahati, India, 18-21 December, 2015.
Saptarshi Ghosh, Somak Bhattacharyya, Devkinandan Chaurasiya, and Kumar Vaibhav Srivastava, "A Broadband Polarization-Insensitive Circuit Analog Absorber using Lumped Resistors," in IEEE Applied Electromagnetics Conference 2015 (AEMC 2015), IIT Guwahati, India, 18-21 December, 2015.
Devkinandan Chaurasiya, Saptarshi Ghosh, Somak Bhattacharyya, and Kumar Vaibhav Srivastava, "Design of a Wideband Absorber using Resistively Loaded Frequency Selective Surface in IEEE Applied Electromagnetics Conference 2015 (AEMC 2015), IIT Guwahati, India, 18-21 December, 2015.
Mondeep Saikia, Saptarshi Ghosh, Somak Bhattacharyya, and Kumar Vaibhav Srivastava, "Broadband Polarization Rotator using Multilayer Metasurfaces," in IEEE Applied Electromagnetics Conference 2015 (AEMC 2015), IIT Guwahati, India, 18-21 December, 2015.
Varuna A B, Saptarshi Ghosh, Somak Bhattacharyya, and Kumar Vaibhav Srivastava, "Design of a Dual-Band Polarization-Insensitive and Angular-Stable Frequency Selective Surface in IEEE Applied Electromagnetics Conference 2015 (AEMC 2015), IIT Guwahati, India, 18-21 December, 2015.
Nagadastagiri Reddy C, Archana Rajput, and Kumar Vaibhav Srivastava, "Reverse Reciprocal External Cloak without Strict Positional Dependence of Object to Anti-Object," in IEEE Applied Electromagnetics Conference 2015 (AEMC 2015), IIT Guwahati, India, 18-21 December, 2015.
Archana Rajput, Nagadastagiri Reddy C, and Kumar Vaibhav Srivastava, "Cylindrical Simplified Cloak with Enhanced Bandwidth,"in IEEE Applied Electromagnetics Conference 2015 (AEMC 2015), IIT Guwahati, India, 18-21 December, 2015.
Somak Bhattacharyya, Saptarshi Ghosh, and Kumar Vaibhav Srivastava, "Polarization Insensitive Metamaterial Absorber with Enhanced Bandwidth," IEEE International Workshop on Antenna Innovation and Modern Technologies (iAIM-2015) at, Ahmedabad, Dec 26-27, 2015.

2014

Somak Bhattacharyya, Saptarshi Ghosh, Devkinandan Caurasiya, and Kumar Vaibhav Srivastava, "A Broadband Wide Angle Metamaterial Absorber for Defence Applications," in IEEE International Microwave & RF Conference (IMaRC) 2014, 15-17 December, 2014, Bangalore, India.
Devkinandan Chaurasiya, Saptarshi Ghosh, Somak Bhattacharyya, and Kumar Vaibhav Srivastava, "Dual-band Polarization-Insensitive Metamaterial Absorber with Bandwidth-Enhancement at Ku-band for EMI/EMC Application," in IEEE International Microwave & RF Conference (IMaRC) 2014, 15-17 December, 2014, Bangalore, India.
Somak Bhattacharyya and Kumar Vaibhav Srivastava, "Dual Layer Polarization Insensitive Dual Band Metamaterial Absorber with Enhanced Bandwidths," in Asia Pacific Microwave Conference (APMC) 2014, Sendai, Japan, 4-7 November, 2014.
Somak Bhattacharyya, Saptarshi Ghosh and Kumar Vaibhav Srivastava, "Equivalent Circuit Modeling of an Ultra-thin Dual-Band Microwave Metamaterial Absorber," in Asia Pacific Microwave Conference (APMC) 2014, Sendai, Japan, 4-7 November, 2014.
Alok Kumar Saxena and Kumar Vaibhav Srivastava, "A Parameter Optimized 3-Step LOD-FDTD Method Based on the (2, 4) Stencil," in44th European Microwave Conference, Rome, Italy, 5-10 Oct 2014.
Soumava Mukherjee, Animesh Biswas and Kumar Vaibhav Srivastava, "Substrate Integrated Waveguide Cavity Backed Slot Antenna for Dual-Frequency Application," in 44th European Microwave Conference, Rome, Italy, 5-10 Oct 2014.
Devkinandan Chaurasiya, Saptarshi Ghosh and Kumar Vaibhav Srivastava, "Dual Band Polarization-Insensitive Wide Angle MetamaterialAbsorber for Radar Application," in 44th European Microwave Conference, Rome, Italy, 5-10 Oct 2014.
Debdeep Sarkar, Kushmanda Saurav, Somak Bhattacharyya and Kumar Vaibhav Srivastava, "A Metamaterial-inspired Miniaturized Dual-band Printed Directive Dipole Antenna for GSM / Bluetooth / WLAN Applications," in 31st URSI General Assembly and Scientific Symposium (URSI-GASS), Beijing, China, 16-23 August 2014.
Aditya Singh, Debdeep Sarkar, Kushmanda Saurav, Sanampudi Venkatrami Reddy, Kumar Vaibhav Srivastava, "A Via-less Planar Quad-band Monopole Antenna Employing Complementary Split Ring Resonator and Interdigital Capacitor," in 8th European Conference on Antennas and Propagation, at The Hague, Netherlands, 8 - 11 April, 2014.
Somak Bhattacharyya, Saptarshi Ghosh, Hitesh Baradiya, and Kumar Vaibhav Srivastava, "Study on Ultra-thin Dual frequency Metamaterial Absorber with Retrieval of electromagnetic Parameters," in National Conference on Communication (NCC) 2014, at IIT Kanpur, 28 February - 2 March, 2014.
Sanampudi Venkatrami Reddy, Kushmanda Saurav, Aditya Singh, Debdeep Sarkar, Kumar Vaibhav Srivastava, "Design of a Novel Dual Band Patch Antenna Loaded with CELC Resonator for WLAN/WiMAX Applications," in National Conference on Communication (NCC) 2014, at IIT Kanpur, 28 February - 2 March, 2014.

2013

Ashish Gupta, Archana Rajput and Kumar Vaibhav Srivastava, "Nonsingular and Thin Cloak using Linear Transformation Function," inIEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Debdeep Sarkar, Kushmanda Saurav and Kumar Vaibhav Srivastava, "A Novel Dual-Band Microstrip Patch Antenna Loaded with Fractal CSRR and Partially Defected Ground Structures," in IEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Kushmanda Saurav, Debdeep Sarkar and Kumar Vaibhav Srivastava, "Dual Mode Triple Band Patch Antenna Based On Two-Dimensional Composite Right/Left-Handed Transmission Lines," in IEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Prasun Chongder, Soumava Mukherjee, Animesh Biswas and Kumar Vaibhav Srivastava, "Asymmetric Dual Mode band-pass filter design using Substrate Integrated Hexagonal Cavity (SIHC)," in IEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Saptarshi Ghosh, Somak Bhattacharyya and Kumar Vaibhav Srivastava, "Design of Ultra-Thin Polarization-Insensitive Circular-Shaped Microwave Metamaterial Absorber," in IEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Somak Bhattacharyya, Saptarshi Ghosh and Kumar Vaibhav Srivastava, "An Ultra-thin Polarization Independent Metamaterial Absorber for Triple Band Applications," in IEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Soumava Mukherjee, Animesh Biswas and Kumar Vaibhav Srivastava, "Bandwidth Enhancement of Substrate Integrated Waveguide Cavity Backed Slot Antenna by Offset Feeding Technique," in IEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Yadunath.Kaiprath, Saptarshi Ghosh, Somak Bhattacharya and Kumar Vaibhav Srivastava, "An Ultra-Thin Polarization-Independent Wide-angle Metamaterial Absorber for Dual-band Applications," in IEEE Applied Electromagnetics Conference 2013 (AEMC-2013), at Bhubaneswar, India, Dec 18-20, 2013.
Soumava Mukherjee, Prasun Chongder, Kumar Vaibhav Srivastava and Animesh Biswas, "Design of a Broadband Coaxial to Substrate Integrated Waveguide (SIW) Transition," in 2013 Asia-Pacific Microwave Conference (APMC 2013), at Coex in Seoul, Korea, Nov. 5-8, 2013.
Prasun Chongder, Soumava Mukherjee, Kumar Vaibhav Srivastava and Animesh Biswas, "Design of Dual-Mode Substrate Integrated Hexagonal Cavity (SIHC) Filter for X-Band Application," in 2013 Asia-Pacific Microwave Conference (APMC 2013), at Coex in Seoul, Korea, Nov. 5-8, 2013.
Soumava Mukherjee, Kumar Vaibhav Srivastava and Animesh Biswas, "Implementation of Dual-Frequency Longitudinal Slot Array Antenna on Substrate Integrated Waveguide at X-Band," in 43th European Microwave Conference (EuMC), Nuremberg, Germany Oct 6 to Oct 11, 2013.
Kushmanda Saurav, Debdeep Sarkar and Kumar Vaibhav Srivastava, "A Via-less CRLH Unit-cell Loaded Dual-Band Double-Sided Printed Dipole Antenna for GSM/Bluetooth/WLAN Applications," in 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013.
Saptarshi Ghosh and Kumar Vaibhav Srivastava "Polarization Insensitive Tetra Arrow Metamaterial Absorber," in 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013.
Prachi C, Raghvendra Chaudhary and Kumar Vaibhav Srivastava "Wideband Cylindrical Dielectric Resonator Antenna Excited by a Rounded Bevel Shaped Patch," in 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013.
Somak Bhattacharyya, Saptarshi Ghosh and Kumar Vaibhav Srivastava "A Dual Band Metamaterial Absorber using Electric Field Driven LC (ELC) and Cave ELC Structures," in 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013.
Geethanjali Kosuru and Kumar Vaibhav Srivastava "Novel EBG Grounded PIFA for Improved Directivity in Mobile Communication Bands," in 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013.
Rajnish Kumar, Raghvendra Kumar Chaudhary and Kumar Vaibhav Srivastava "Annular Shape Microstrip Feeding Technique for Cylindrical and Half-split Cylindrical Dielectric Resonator Antenna for Broadband Applications," in 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas "Dual-Band Cylindrical Dielectric Resonator Antenna with Varying Permittivity in f-direction," in 2013 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting in Orlando, Florida, USA, July 7-12, 2013.
Somak Bhattacharyya and Kumar Vaibhav Srivastava, "An Ultra Thin Electric Field Driven LC Resonator Structure as Meta-material Absorber for Dual Band Applications," in 2013 URSI International Symposium on Electromagnetic Theory (EMTS), Hiroshima, Japan,May 20-24, 2013.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and Animesh Biswas, "A Concentric Three-layer Half-split Cylindrical Dielectric Resonator Antenna for Wideband Applications," in 2013 URSI International Symposium on Electromagnetic Theory (EMTS), Hiroshima, Japan, May 20-24, 2013.
Debdeep Sarkar and Kumar Vaibhav Srivastava, "SRR-loaded Antipodal Vivaldi Antenna for UWB Applications with Tunable Notch Function," in 2013 URSI International Symposium on Electromagnetic Theory (EMTS), Hiroshima, Japan May 20-24, 2013.
Saptarshi Ghosh, Somak Bhattacharyya and Kumar Vaibhav Srivastava, "Design of a Bandwidth-enhanced Ultra Thin Metamaterial Absorber," in Progress in Electromagnetics Research Symposium, PIER 2013 in Taipei, Taiwan, 25-28 March 2013.
Debdeep Sarkar, Kushmanda Saurav and Kumar Vaibhav Srivastava, "Design of a Novel Dual-band Microstrip Patch Antenna for WiMAX/WLAN Applications Using Complementary Split Ring Resonators and Partially Defected Ground Structure" in Progress in Electromagnetics Research Symposium, PIER 2013 in Taipei, Taiwan, 25-28 March 2013.

2012

Yash Sidana, Raghvendra Kumar Chaudhary and Kumar Vaibhav Srivastava, "A Novel Dual-Band Hexagonal Patch Antenna Based on Complementary Split Ring Resonator", in Asia Pacific Microwave Conference (APMC) 2012 Kaohsing, Taiwan, Dec 4-7, 2012.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and A. Biswas "Two-layer Embedded Half-split Cylindrical Dielectric Resonator Antenna for Wideband Applications", in 42th European Microwave Conference (EuMC), 28 Oct.-2 Nov., 2012 in Amsterdam, Netherlands.
Alok Kumar Saxena, S. K. Singamaneni and Kumar Vaibhav Srivastava, "A Compact Fourth Order 3-Step LOD-FDTD Method", in 42th European Microwave Conference (EuMC), 28 Oct.-2 Nov., 2012 in Amsterdam, Netherlands.
Raghvendra Kumar Chaudhary, Kumar Vaibhav Srivastava and A. Biswas,"A Novel Triple-Band Cylindrical Dielectric Resonator Antenna Using Varying Permittivity in φ-direction", in 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, July 8-14, 2012, Chicago, IL, USA.
Somak Bhattacharyya, Hitesh Baradiya and Kumar Vaibhav Srivastava, "An Ultra Thin Metamaterial Absorber Using Electric Field Driven LC Resonator with Meander Lines", in 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, July 8-14, 2012, Chicago, IL, USA.
Hitesh Baradiya, Somak Bhattacharyya and Kumar Vaibhav Srivastava, "Retrieval of Constitutive Parameters of Ultrathin ELC Resonator as Microwave Absorber", in IEEE Indian Antenna Week (IAW) Conference, 27 - 31 May, 2012, Sikkim, India.
Rajnish Kumar, Raghvendra Kumar Chaudhary and Kumar Vaibhav Srivastava, "Comparative Studies on Ring Dielectric Resonator Antenna with Novel Annular Shape Microstrip Feed and L-Shape Microstrip Feed ", in IEEE Indian Antenna Week (IAW) Conference, 27 - 31 May, 2012, Sikkim, India.
Vepuri Niranjan, Alok Kumar Saxena and Kumar Vaibhav Srivastava, "CPW-fed Dual-Mode Slot Patch Antenna with Metamaterial Loading", in IEEE Indian Antenna Week (IAW) Conference, 27 - 31 May, 2012, Sikkim, India.
Vepuri Niranjan, Alok Kumar Saxena and Kumar Vaibhav Srivastava, "CPW-fed Slot Patch Antenna for 5.2/5.8 GHz WLAN Application," in Progress in Electromagnetics Research Symposium, PIER 2012 in Kuala Lumpur, Malaysia, 27-30 March 2012.
Somak Bhattacharyya, and Kumar Vaibhav Srivastava, "Ultra Thin Metamaterial Absorbers Using Electric Field Driven LC(ELC) Resonator Structure," in Progress in Electromagnetics Research Symposium, PIER 2012 in Kuala Lumpur, Malaysia, 27-30 March 2012.
S. Bhattacharya, H. Baradiya, Raghvendra Kumar Chaudhary and K. V. Srivastava, "An Electric Field Driven LC Resonator Structure as Ultra Thin Metamaterial Absorber", in 5th Antenna Test & Measurement Society (ATMS) Conference, 01 - 03 Feb., 2012, Mumbai, India.
Raghvendra Kumar Chaudhary, Somak Bhattacharyya, K. V. Srivastava and Animesh Biswas, "Design of a Wide-Band Dual Segment Half-split Cylindrical Dielectric Resonator Antenna", in 5th Antenna Test & Measurement Society (ATMS) Conference, 01 - 03 Feb., 2012,Mumbai, India.

Faculty

Dr. K. V. Srivastava

Ph. D. students

Alok Kumar Saxena
Kushmanda Saurav
Archana Rajput
Saptarshi Ghosh
Debdeep Sarkar
Mahesh Singh Bisht
Abhinav Bharadwaj

M.Tech students

Dinesh Dwivedi
Mondeep Saikia
Naga Dastagiri Reddy
Neha Hakla
Lt. Col. R. K. Pandey
Varuna Ab
Yashika Sharma
Yogesh Pal Singh

Contact Person

Dr. Kumar Vaibhav Srivastava
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Tel: +91-512- (259/679/392) -7105
Fax: +91-512-2590063
Location: ACES 328

Details: Last Updated: Saturday, 18 January 2025 14:50

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