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Karun Rawat

Karun Rawat

Associate Professor

karun.rawat@ece.iitr.ac.in
01332-284830
My Website

  • Power Amplifiers:, Broadband, load modulation, Doherty PA, pulse gate modulation, High Efficient PAs, Switch Mode PAs
  • Transceiver Design:, All-digital transmitters, Transceivers, Digital control of RF circuits, Transmit/Receive module
  • Chip Design:, CMOS and GaN MMIC based power amplifiers design, mixed signal design, GaN MMIC based RF Chip design
  • Modelling:, RF PA Design with Embedding Device Model, Non-linear device modelling, RF measurement
  • RF Circuits:, Multi-port Networks, Modulators , RF Analog Processing, mixers, LNA
  • Embedded Design:, FPGA based transceivers for wireless applications
  • Sensor Integration with IOT:, IOT based pedestrian counting, Cloud centric IOT
  • Wireless Communication using embedded platforms:, Software defined radio for Wireless communication


Award Institute Year Awarded
Research Production Award Department of Electrical Engineering , University of Calgary. 2009
Research Production Award Department of Electrical Engineering , University of Calgary. 2010
First and Best Design Prize in 3rd Annual Smart Radio Challenge Software Defined Radio Forum 2010
Research Production Award Department of Electrical Engineering , University of Calgary. 2011
Young Scientist Award (finalist) in the field of Innovation in Engineering and Physical Science NASI Scopus 2019
Outstanding Young Faculty Award Institute Research Fellowship, I.I.T Roorkee 2020
Degree Subject University Year Studied
PhD Electrical and Computers Engineering University of Calgary, Canada 2012
MS Electrical and Computers Engineering University of Calgary, Canada 2009
BE Electronics & Communication Engineering C.C.S. University Meerut,India 2002
Scheme Sponsoring Agency Other Faculties Year Sponsored
Design of Airborne Power Amplifiers for L-band and UHF frequency range (Ongoing) DEAL, DRDO Government of India 2020-2022
Wideband Gallium Nitride Based Outphasing Power Amplifier for Upcoming 5G Wireless Transmitters (Ongoing) Extra Mural (SERB Government of India) 2019-2022
Nonlinear GaN HEMT Device Characterization for Power Amplifier Design and Implementation at X-Band frequencies (Ongoing) ER&IPR (DRDO, Government of India) 2019-2022
Design & Development of Ultra-Wideband Multi-Octave Gallium Nitride Monolithic Microwave Integrated Circuit (MMIC) based Power Amplifier (Ongoing) IMPRINT2 (DST, Government of India) 2019-2022
Radio Frequency Power Amplifier Design & Distortion Mitigation for Energy and Spectrum Efficient 5G Wireless Transmitters (Ongoing) SPARC (MHRD, Government of India) 2019-2021
Broad-Band Gallium Nitride Based Doherty Power Amplifier for Efficient Amplification of High Crest Factor Signals (Completed) SERB, Government of India. 2014-2017
Infrastructural grant under Visvesvaraya PhD Scheme for Electronics and IT.(Completed) DeitY, Government of India 2016-2020
Consultancy project “Experiments development for Software defined radio SDR-Lab” (Completed) Industrial Client Amitec Electronics Ltd., New Delhi 2014
Consultancy project "RF Power Amplifier Design based on SSPL GaN Devices” (Completed) SSPL, DRDO, Government of India 2016-2018
Training to BEL on "Efficient and Linearized Power Amplifier and Transmitters RF Power Amplifier" (Completed) BEL, Bengaluru, India 2018-2019
Training to BEL on "GaN based MMIC PA Design"(Completed) BEL, Bengaluru, India 2019
GIAN Course on RF Power Amplifier Design and Integration for 4G/5G Applications” (Completed) MHRD, Government of India 2017
Study of Design Feasibility for High Power GaN based Power Amplifier at Ku-Band in Hybrid MIC Technology (Completed) ASemiT, DRDO, Government of India 2017-2019
Study and Design Challenges in GaN MMIC based Power Amplifier at Ku-Band (Completed) SSPL, DRDO, Government of India 2017-2020
a. Prof. Rawat has received several funding from various sponsored research projects and consultancies. His funding is supported by various Government funding agencies, National research labs, public sector units and private industries. For details, please visit www.karunrawat.com. . . .
Membership Details
1. Senior Member IEEE
2. Member Technical Committee MTT-5: " Microwave High Power Techniques"
3. Member MTT Special Interest Group in Microwave and Wireless Education.
4. Member, IEEE MTT, IEEE COMSOC, IEEE EDS.
5. Member Nonlinear VNA Forum, USA.
6. Chapter Chair, IEEE Communication Society Chapter
7. Member Editorial board of International Journal of RF and Microwave Computer-Aided EngineeringRFMiCAE, Wiley, since December, 2013.
8. Guest Editor of a special issue entitled “GAN HEMT Modeling and Circuits” for International Journal of RF and Microwave Computer-Aided Engineering, Wiley in 2018.
9. Reviewer of several IEEE Transactions, letters and Journals.
10. Publication Co-Chair in IEEE Asia Pacific Microwave Conference 2016, New Delhi, India, (sponsored by IEEE-MTT/AP).
11. Technical Program Co-Chair in IEEE India Council International Conference (INDICON) 2017, IIT Roorkee, Roorkee, Uttarakhand, India.
12. Exhibition Co-Chair in IEEE International Microwave and RF conference IMaRC 2013, New Delhi, India.
13. Member Technical committee: IMaRC 2014-2016, APMC 2016-2018.
Topic Scholar Name Status of PhD Registration Year
Prof. Rawat has supervised more than 5 PhD students who have completed their thesis and placed in various good industries, research labs and academic institutions. He is currently supervising more than 8 PhD students. For details, please visit www.karunrawat.com . . .
Course Name Sponsored By Date Participated
RF Power Amplifier Design and Integration for 4G/5G Applications Global Initiative of Academic Networks (GIAN) scheme of Government of India 17/12/18
RF Techniques For Software Defined Radios Cabinet Secretariat New Delhi 12/4/2014
RF Power Amplifiers and Application of Digital Techniques in RF Cabinet Secretariat New Delhi 11/4/2014
Topic Organisation Level
Prof. Rawat has collaboration with academics and industries in various continents across the world including Canada and USA in North America, Mexico in South America, England, Germany, Spain in Europe and China and South Korea in Asia. For details, please visit www.karunrawat.com. . .
Title of Project Name of Student
Design of High Efficiency Multi-Standard Multi-Stage Doherty Power Amplifier. Girish Kumar Ajmera
Six Port Modulator Design using Six Port Microwave Network Lalbahadur Dube
Design of harmonic terminated power amplifier Parul Gupta
Design and Optimisation of Doherty Power Ampli er with Extended Efficiency Range Akhilesh K
Modeling of GaN HEMT and RF Power Amplifier Design Samarth Saxena
Analysis and Characterization of GaN HEMT based Power Amplifiers Viswas N.G,
Broadband Class E RF Power Amplifier Pankaj Kakkad
GaN Based Switch Mode Power Amplifier In Class-D Mode Jai Datt Poonia
Wide band Distributed RF power amplifier Ram Babu Kumar
Wideband Push-pull Power Amplifier Varun Deep Singh
Multiport Network Design and Application for Vector Network Ana Rashmi Soni
ON-Chip PA Design using GaN HEMT MMIC Process Ahmad Zakaria
Institute Visited Purpose of Visit Visit Date
Ohio State University To Deliver Invited Talk and Seek for possible collaboration 11/11/2013
University of Calgary For Carrying out ongoing Research Collaboration 11/6/2014
Topic Organisation Category Year
Invited talk on Bandwidth enhancement of load modulation techniques in Power amplifiers for upcoming wireless communication IEEE ARFTG Microwave Measurement Symposium T 2017
Talk on Design methodologies of power amplifiers at National Level Short term course on Signal Processing and VLSI Design IEEE Electronic Devices Delhi Chapter T 2017
Recent Trends in RF Power Amplifier and Wireless Transmitter Design IEEE Asia Pacific Microwave Conference, 2015, China T 2015
Advances on Power Amplifier National Conference on III-Nitride Materials and Devices T 2015
Understanding load modulation in power amplifiers at Target Training Program on Gallium Nitride device simulation and power amplifier design, SSPL, DRDO T 2015
RF Power Amplifiers and Architectures for Upcoming Wireless Communication IEEE MSIT Delhi Chapter T 2014
Techniques in Multi-band/Multi-standard Doherty Power Amplifiers for Wireless Transmitters IEEE MTT/APS Columbus Chapter, ElectroScience Laboratory, Ohio State University T Nov-13
Concept of Load-Modulation in Doherty Power Amplifier for Wireless Transmitters IEEE MTT-Delhi chapter T Nov-13
Power efficient multi-band/ multi-standard wireless transmitter for software defined radios IEEE MTT Delhi Chapter T May-13
Multi-band Wireless Transmitter Design for Software Defined Radios IIT Bombay T Mar-12
Conference Name Sponsored By Date
Member Organizing Committee IMaRC 2013 IEEE MTT 14/12/13
Publication Chair IEEE Asia Pacific Microwave Conference APMC 2016 IEEE MTT 5-9/12/16

Book & Book Chapters:


1.Book Title:Multiband RF Circuits and Techniques for Wireless Transmitters”.

Publisher: Springer, ISBN 978-3-662-50440-6

Year: 2016


2.Book Title:Bandwidth and Efficiency Enhancement in Radio Frequency Power Amplifiers for Wireless Transmitters

Publisher: Springer, ISBN 978-3-030-38866-9

Year: 2020


3.Book Chapter Title:Power amplifier design based on nonlinear embedding models with particular examples in IET Book “Radio Frequency and Microwave Power Amplifiers: Theory, Design and Applications”, Guest Editor: Andrea Grebennikov.

Publisher: IET, ISBN 1785616196, 9781785616198

Year: 2019


PATENTS


1.Invention:Time Interleaved Digital Transmitter using Multi-Level Digital Quantization

Inventors:Karun Rawat,Nishant Kumar

Subject Area:Wireless Transmitters

Country of Patent:India

Status:Filed on June, 2018 (File No. 201811021993).


2.Invention:Reconfigurable Concurrent Multi-Band Digital Transmitter Using Delta Sigma Modulator and Augmented Noise Shaping.

Inventors:Karun Rawat,Nishant Kumar

Subject Area:Wireless Transmitters

Country of Patent:India

Status:Filed on October, 2018 (File No. 201811038732).


3.Invention:Multi-octave modes for switching power amplifiers

Inventors:Karun Rawat,Y.M. Ashalatha

Subject Area:Radio Frequency Power Amplifiers

Country of Patent:India

Status:Filed on July, 2020 (File No. 202011029361).


Journals


2020

1.    H. Chang, P. Roblin, Y. Hahn, J. I. Martinez-Lopez, C. Liang and K. Rawat, "Frequency-Agile Class-J Power Amplifier With Clockwise Fundamental- and Second- Harmonic Loads," IEEE Transactions on Microwave Theory and Techniques, vol. 68, no.7, pp. 3184-3196,July 2020.

2.    H. K. Singhal and K. Rawat, "Digitally Assisted Harmonic Cancellation for Multi-Octave Filter-less Transmitter", IEEE Access, April 2020, DOI:10.1109/ACCESS.2020.2986264.

3.    H. K. Singhal and K. Rawat, "Board-Level Ku-Band Power Amplifier: Design and Challenges", IETE Journal of Research, March 2020, DOI:10.1080/03772063.2020.1742804.

4.    N. Kumar, K. Rawat and F. M. Ghannouchi, "Reconfigurable Digital Delta-Sigma Modulation Transmitter Architecture for Concurrent Multi-Band Transmission", IEEE Transactions on Circuits and Systems I, February 2020. (accepted)

5.    A. K. Sahoo and K. Rawat, "Geometrically progressive stub loading scheme for miniaturization of transmission line‐based components", in  International Journal of RF and Microwave Computer-Aided Engineering, January 2020, DOI: 10.1002/mmce.22140.


2019

1.    Y. M. Asha Latha, K. Rawat, P. Roblin, "Nonlinear Embedding Model based Continuous Class E/F Power Amplifier", IEEE Microwave Wireless Component Letters, September 2019. (accepted)

2.    E. Aggrawal and K. Rawat, "Reconfigurable Chireix Outphasing Power Amplifier over Multiple Frequency Bands," in IEEE Transactions on Circuits and Systems II: Express Briefs. July 2019, DOI:10.1109/TCSII.2019.2926529.

3.    S. Ghosh, K. Rawat, " Hybrid Analog/Digital Continuous Class B/J Mode for Broadband Doherty Power Amplifiers", IEEE Access, vol. 7, pp. 74986-74995, June 2019.

4.    Y. M. Asha Latha, K. Rawat, M. Helaoui, F. M. Ghannouchi, “Broadband Continuous Mode Power Amplifier with on-board Harmonic Injection", IET Microwaves, Antenna & Propagation, (published online), 2019, DOI: 10.1049/iet-map.2018.5885.

5.    C. Pathak, K. Rawat, " Nonlinear Characterization & Distortion Mitigation in Six-Port Modulator", IEEE Transactions on Instrumentation and Measurement, vol. 68, no. 4, pp. 1178-1188, April 2019.

6.    R. Kalyan, K. Rawat, S. K. Koul, "A Digitally assisted dual-input dual-band Doherty power amplifier with enhanced efficiency and linearity", IEEE Transactions on Circuits and Systems-II, vol. 66, no. 2, pp. 297-301, Feb. 2019.

7.    C. Pathak, K. Rawat, "Characterization and modeling of hardware imperfections in Schottky diode based six-port modulator," International Journal of RF and Microwave Computer-Aided Engineering, vol. 29, no. 6, 2019.


2018

1. S. Ghosh, K. Rawat, "A wideband two-stage Doherty power amplifier at high back-off by exploring feasible design space", Wiley International Journal of RF and Microwave Computer-Aided Engineering, vol. 28, no. 9, October 2018.


2. A. Barthwal, K. Rawat, S. K. Koul, "A Design Strategy for Bandwidth Enhancement in Three-stage Doherty Power Amplifier with Extended Dynamic Range", IEEE Transactions on Microwave Theory and Techniques, vol. 66, no. 2, pages: 1024-1033, Feb. 2018.

3. W. Chen, K. Rawat, R. Ma, "Special issue on GaN HEMT modeling and circuits," International Journal of RF and Microwave Computer-Aided Engineering, vol. 28, no. 8, October 2018.


2017

1.E. Aggrawal, K. Rawat, P. Roblin, "Investigating Continuous Class-F Power Amplifier Using Nonlinear Embedding Model", IEEE Microwave Wireless Component Letters, vol. 27, no. 6, pages 593–595, July 2017.

2.R. Kalyan, K.Rawat, S.K. Koul, "Reconfigurable and Concurrent Dual-band Doherty Power Amplifier for Multi-band and Multi-standard Applications", IEEE Transactions on Microwave theory and Techniques, vol. 65, no. 1, pages: 198-208, Jan. 2017.


2016

1. S. Saxena, K. Rawat, P. Roblin, "Continuous Class-B/J Power Amplifier Using Nonlinear Embedding Technique", IEEE Transactions on Circuit &      System-II, vol. 64, Issue 7, pages 837–841, July 2017.


2015

1.    K. Rawat, G. Gowrish, G. Ajmera, A. Basu, S.K. Koul, "Design scheme for broadband Doherty power amplifier using broadband load combiner", Wiley International Journal of RF and Microwave Computer-Aided Engineering, vol. 25, Issue 8, pages 655–674, October 2015.

2.    R. Kalyan, K. Rawat, K. S.K. Koul, " Design strategy of concurrent multi-band Doherty power amplifier", IET Microwaves, Antenna & Propagation, vol. 9, no. 12, pages:1313-1322, Sep. 2015.

3.    A. Barthwal, K. Rawat, S.K. Koul, "Bandwidth Enhancement of Three-Stage Doherty Power Amplifier Using Symmetric Devices", IEEE Transactions on Microwave theory and Techniques, vol. 63, no. 8, pages: 2399-2410, Aug. 2015.

4.    M. Jouzdani, M. M. Ebrahimi, K. Rawat, M. Helaoui, F.M. Ghannouchi, “Envelope Tracked Pulse Gate Modulated GaN HEMT Power Amplifier for Wireless Transmitters, ” IEEE Transaction on circuits and Systems-I, vol. 62, no. 2, pages:571-579, Feb. 2015.

5.    R. Bhattacharya, A. Basu, K. Rawat, S.K. Koul, “A high efficiency inductor-less broadband fully integrated CMOS power amplifier, ” Wiley International Journal of RF and Microwave Computer-Aided Engineering, Vol. 25, no. 4, pages 311–320, May 2015.


2014

1.    M. Rawat, K. Rawat, R. Darraji, F. E. Alfaro, S. A. Bassam, M. Helaoui, F. M. Ghannouchi, M. Fattouche and F. Falcone, “Cooperative network solution and implementation for emergency applications with enhanced position estimation capability,” Wireless Networks, Vol. 20, no. 5, pp 1157–1168 ,July 2014.

2.    L. Azpilicueta, M. Rawat, K. Rawat, F. Ghannouchi, and F. Falcone, “A Ray Launching-Neural Network Approach for Radio Wave Propagation Analysis in Complex Indoor Environments, ” IEEE Transactions on Antenna and Propagation, vol. 62, no. 5, pp. 2777-2786, May 2014.

3.    R. Bhattacharya, R. Gupta, A. Basu, K. Rawat & S. K. Koul, "A Fully Integrated Dual-Band CMOS Power Amplifier Using a Variable Switched Interstage Matching Network", IETE Journal of Research, Volume 60, Issue 2, 2014,pp- 139-144.

4.    M. Rawat, K. Rawat, F. Ghannouchi, S. Bhattacharjee and H. Leung, “Generalized Rational Functions for Reduced Complexity Behavioral Modeling and Digital Predistortion of Broadband Wireless Transmitters,” IEEE Transactions on Instrumentation and Measurement., vol. 63, no. 2, pp. 485 - 498, February 2014.

5.    L. Azpilicueta, M. Rawat, K. Rawat, F. M. Ghannouchi, F. Falcone, "Convergence analysis in deterministic 3D ray launching radio channel estimation in complex environments," Applied Computational Electromagnetics Society Journal, 2014.


2013

1.    K. Rawat, M. Rawat, M.S. Hashmi, F.M. Ghannouchi, “Dual Band branch-line hybrid with distinct power division ratio at two bands ” Wiley International Journal of RF and Microwave Computer-Aided Engineering, vol. 23, no. 1, Jan. 2013, pages 90–98.

2.    M. Rawat, K. Rawat, M. Younes and F. M. Ghannouchi, "Joint Mitigation of Non-Linearity and modulator imperfections in a dual-band Concurrent Transmitter Using Neural Networks," IET Electronics Letters, Vol. 49: Issue 4, pp. 253-255, February 2013.

3.    M. Rawat, K. Rawat, and F. M. Ghannouchi, “Three-Layered Biased Memory Polynomial for Dynamic Modeling and Predistortion of Transmitters,” IEEE Transaction on circuits and Systems-I, vol. 60, no. 3, pages:768-777, March 2013.

4.    M. Rawat, K. Rawat, M. Younes, F. M. Ghannouchi, "Erratum: Joint mitigation of nonlinearity and modulator imperfections in dual-band concurrent transmitter using neural networks," Electronics Letters, 2013.


2012

1.    K. Rawat, M.S. Hashmi, F.M. Ghannouchi, “Double the band and optimize” IEEE Microwave Magazine, vol. 13, no. 2, April 2012, pages: 69-82.

2.    K. Rawat, M.S. Hashmi, F.M. Ghannouchi, “Dual-Band RF Circuits and Components for Multi-standard Software Defined Radios” IEEE Circuit and Sys. Magazine, vol. 12, no. 1, Mar. 2012, pages: 12-32.

3.    K. Rawat, F.M. Ghannouchi, “Design methodology for dual-band Doherty power amplifier with performance enhancement using dual-Band offset lines,” IEEE Trans. Industrial Electronics, vol.59, no. 12, Dec. 2012, pages:4831-4842.


2011

1.    K. Rawat, F.M. Ghannouchi, “A Novel Dual-Band Matching Technique Based on Dual-Characteristic Impedance Transformer for Dual-Band Power Amplifier Design” IET Microwaves, Antennas & Propagation, vol. 5, no. 14, Nov 2011, pages: 1720-1729.

2.    K. Rawat, F.M. Ghannouchi, M.Rawat, M.S. Hashmi, “Analysis of Frequency Selective Impedance Loading of Transmission Lines for Dual Band Couplers,” Wiley International Journal of RF and Microwave Computer-Aided Engineering, vol. 21, no. 3, May 2011, pages: 325-335.

3.    W. Chen, S.A. Bassam, Li Xiang, Liu Yucheng, K. Rawat, M. Helaoui, F.M. Ghannouchi and F. Zhenghe,“ Design and linearization of concurrent dual-band Doherty power amplifier with frequency-dependent power ranges,” IEEE Transactions on Microwave theory and Techniques, vol. 59, no. 10, pp. 2537–2546, Oct. 2011.

4.    M. Rawat, K. Rawat, and F. M. Ghannouchi, “Recent Advances on Signal Processing Solutions for Distortion Mitigation Due to Power Amplifier and Non-Ideality of Transmitter System,” in journal Recent Patents on Signal Processing, vol. 1: no. 2, pp. 135-142, December 2011.


2010

1.    K. Rawat, M. Rawat, F.M. Ghannouchi, “Compensating I-Q Imperfections in Hybrid RF/Digital Predistortion with Adapted Look up Table Implemented in FPGA,” IEEE Transactions on Circuits and Systems II, vol. 57, no. 5, May 2010, pp. 389-393.

2.    M. S. Hashmi, F. M. Ghannouchi, P. J. Tasker, K. Rawat, “Highly Reflective Load-Pull Techniques for Microwave Power Device Characterization,” in IEEE microwave Magazine, vol.12 , no.4, pp. 96 - 107, Jan 2010.

3.    M. Rawat, K. Rawat, F.M. Ghannouchi, “Adaptive Digital Predistortion of Wireless Power Amplifiers/Transmitters Using Dynamic Real-Valued Focused Time-Delay Line Neural Networks,” IEEE Transactions on Microwave theory and Techniques, vol.58 , no.1, pages: 95-104, Jan 2010.


2009

1. K. Rawat, F.M. Ghannouchi, “A Design Methodology for Miniaturized Power Dividers using Periodically Loaded Slow Wave Structure with Dual        Band Applications,” IEEE Transactions on Microwave theory and Techniques, vol. 57, no. 12, part 2, Dec 2009, pp. 3380-3388.


Conferences


2020


1.    A. Z. Ahmad, E. Aggrawal, K. Rawat, “Design of 100 W LDMOS based Power Amplifier for cellular applications,” 7th International Conference on Signal Processing and Integrated Networks (SPIN), 27th-28th February, 2020, New Delhi, India.


2019

1.    Y. M. Asha Latha, K. Rawat, "Methodology to Realize Wideband High Efficiency Power Amplifier Using Active Harmonic Injection", 7th IEEE MTT-S International Microwave & RF Conference (IMaRC), 13th-15th December, 2019, Mumbai, India.

2.    N. Kumar, K. Rawat, "Delta Sigma Modulation based All Digital Transmitter for Upcoming SDR applications", 7th IEEE MTT-S International Microwave & RF Conference (IMaRC), 13th-15th December, 2019, Mumbai, India.

3.    S. Ghosh, K. Rawat, "A Broadband Doherty Power Amplifier Using Class B/J Continuum", 7th IEEE MTT-S International Microwave & RF Conference (IMaRC), 13th-15th December, 2019, Mumbai, India.

4.    K. Rawat, "Design Challenges In Continuous Mode Power Amplifiers", invited paper in 6th IEEE MTT-S International Wireless Symposium (IWS), 19th-22nd May, 2019, Guangzhou, China.

5.    S. Ghosh, K. Rawat, "Implementation of a Two-Input Digitally Assisted Doherty Transmitter for Enhanced Performance", 6th IEEE MTT-S International Wireless Symposium (IWS), 19th-22nd May, 2019, Guangzhou, China.

6.    A. K. Sahoo, K. Rawat, "Full 2-Port Vector Network Analyzer using Nonlinear Calibration of SixPort Reflectometer", 6th IEEE MTT-S International Wireless Symposium (IWS), 19th-22nd May, 2019, Guangzhou, China.

7.    P. Roblin, C. Chang, H. C. Chang, K. Rawat, "Class-E PA Prototype Using An Embedding Model," Invited Paper IEEE 20th Wireless and Microwave Technology Conference, WAMICON, Cocoa Beach, FL, USA, 2019.

2019.


2018

1.    E. Aggrawal, K. Rawat, "Chireix Outphasing Switched Mode Power Amplifier for Wireless Communication", 6th IEEE MTT-S International Microwave & RF Conference (IMaRC), 28th-30th November, 2018, Kolkata, India.

2.    E. Aggrawal, K. Rawat, “Analysis and Design of Chireix Outphasing Switched Mode Power Amplifier”, IEEE MTTS Latin America Microwave Conference (LAMC), 12nd-14th December, 2018, Arequipa, Peru.

3.    N. Kumar, K. Rawat, "Delta Sigma Modulation Based Digital Transmitter for Single and Dual Band Transmission", 6th IEEE MTT-S International Microwave & RF Conference (IMaRC), 28th-30th November, 2018, Kolkata, India.

4.    A. K. Sahoo, K. Rawat, “A Wideband Rat-race Coupler Using Stepped Impedance Resonator,” 5th IEEE MTT-S International Wireless Symposium (IWS), 6th-10th May, 2018, Chengdu, China, pp. 1-3.

5.    C. Pathak, K. Rawat, “Quadrature modulation using radio frequency wave correlation in multiport network,” 5th IEEE International Conference on Signal Processing and Integrated Networks (SPIN), New Delhi, India, 22nd-23rd February, 2018, pp.1-3.


2017

1.    N. Kumar, Jai Datt Poonia, Karun Rawat, " Class S Power Amplifier based on CSCD with Delta-Sigma Modulation",  IEEE Applied Electromagnetics Conference (AEMC), 19th-22nd December, 2017, Aurangabad, India.

2.    N. Kumar, K. Rawat, "Efficiency Enhancement in Delta-Sigma Modulator based Transmitter using Level Transformation", IEEE International Microwave and RF Conference (IMaRC), 11th-13th December, 2017, Ahmedabad, pp. 1-5.

3.    K. Rawat, Shiban Koul, "Efficiency and Bandwidth Enhancement in Power Amplifiers for Wireless Communication" invited paper in IEEE European Microwave Conference (EuMW), 8th-13th October, 2017, Nuremberg, Germany, .

4.    Pankaj Kakkad, Ekta Aggrawal, Karun Rawat, "De-embedded Model based Class-E Power Amplifier Using Waveform Engineering", IEEE International Conference on Computing Communication and Networking Technologies (ICCCNT), 3rd-5th July, 2017, New Delhi, India, pp. 1-4.

5.    K. Rawat, S. Saxena, P. Roblin, " Continuous Class-B/J Power Amplifier Using Nonlinear Embedding Technique", invited paper in special session of TCAS, IEEE International Symposium on circuits & Systems (ISCAS), 28th-31st May, 2017, Baltimore, USA, pp. 837-841.


2016

1.    Lalbahadur Dube, Karun Rawat, Anajan Basu, Shiban K. Koul, “Modulator Design Using Six Port Microwave Network at a Carrier Frequency of 1.9 GHz”, IEEE International Conference on Wireless Networks and Embedded Systems (WECON), 14th-16th October, 2016, Punjab, India, pp. 1-3.

2.     Ayushi Barthwal, Karun Rawat, Shiban Koul, "Wideband Tri-stage Doherty Power Amplifier with Asymmetric current ratios" IEEE International Microwave and RF Conference (IMaRC), 5th-9th December, 2016, New Delhi, India, pp. 1-4.

3.    R. Kalyan, K. Rawat, S. K. Koul, “Design of reconfigurable concurrent dual-band power amplifiers using reconfigurable concurrent dual-band matching network”, IEEE International Wireless Symposium (IWS), 14th-16th March, 2016, Beijing, China, pp. 1-4.

4.    Ekta Aggrawal, Samarth Saxena, Karun Rawat, " Broadband Power Ampliifer Design by Exploring Design Space of Continous ClassF mode" IEEE Asia Pacific Microwave Conference (APMC), 5th-9th December, 2016, New Delhi, India, pp. 1-4.

5.    K. Gumber, P. Jaraut, M. Rawat and K. Rawat, "Digitally assisted analog predistortion technique for power amplifier," 88th ARFTG Microwave Measurement Conference (ARFTG), Austin, TX, 2016.


2015

1.    Samarth Saxena, Karun Rawat, Patrick Roblin, “Class-F GaN Power Amplifier Design Using Model- Based Nonlinear Embedding”, IEEE Applied Electromagnetics Conference (AEMC), 18th-21st, December 2015, Guwahati, India, pp. 1-2.

2.    Robin Kalyan, Karun Rawat, Shiban K. Koul, “Design of Reconfigurable Concurrent Dual-Band Quarter-Wave Transformer with Application of Power Combiner/Divider”, IEEE International Microwave and RF Conference (IMaRC), 10th-12nd December, 2015, Hyderabad, India, pp. 169-172.


2014

1.    K. Rawat, Gowrish B, Girish Ajmera, Robin Kalyan, Ananjan Basu, Shiban Koul, and Fadhel Ghannouchi, "Design Strategy for Tri-Band Doherty Power Amplifier" 15th Annual IEEE Wireless and Microwave Technology Conference (WAMICON), 6th June 2014, Tampa, Florida, USA, pp. 1-3.

2.    A. Barthwal, G. Ajmera, K. Rawat, A. Basu, S.K. Koul, “Design scheme for dual-band three stage Doherty Power Amplifiers”, IEEE International Microwave and RF Conference (IMaRC), 15th-17th December, 2014, Bangalore, India, pp. 80-83.

3.    R. Bhattacharya, R. Gupta, A. Basu, K. Rawat, S.-K. Koul, “A Fully integrated CMOS Broad Band Power Amplifier Using a Low-Q Matching Strategy”, Asia Pacific Microwave Conference (APMC), 4th-7th November, 2014, Sendai, Japan, pp. 747-749.

4.    Gowrish, B, A. Bhat, A.B. Kiran, K. Rawat, "Optimal finite bit Pi representation", IEEE 2014 Region 10 Symposium, 14th-16th April, 2014, Kuala Lumpur, Malaysia, pp. 387-390.


2013

1.    Gowrish B., K. Rawat, A. Basu, S. K. Koul, “Broad-band matching network using band-pass filter with device parasitic absorption”, 82nd ARFTG Microwave Measurement Conference, 18th-21st November, 2013, Columbus, Ohio, USA, pp. 1-4.


2012

1.    K. Rawat, F. M. Ghannouchi, “Load-pull assisted CAD design of inverted Doherty Amplifier without quarter-wave transformer” 25th IEEE Canadian Conference on Electrical and Computer Engineering (CCECE), 29th April-2nd May, 2012, Montreal, QC, Canada, pp. 1-4.

2.    K. Rawat, M. Rawat, M.S. Hashmi, F. Falcone, F. M. Ghannouchi “Dual-Band Phase Offset line with Required Transmission Phases at two Operational frequencies” IEEE MTT-S International Microwave Symposium (IMS) 17th-22



Total Citations
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