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Karun Rawat
Karun Rawat Assistant Professor karunfec[at]iitr.ac.in +911332284830
Areas of Interest
  • Power Amplifiers:, Broadband, load modulation, Doherty PA, pulse gate modulation, High Efficient PA modes
  • Transceiver Design:, All-digital transmitters, Transceivers, Digital control of RF circuits
  • Chip Design:, CMOS and GaN MMIC based power amplifiers design, mixed signal design
  • Modelling:, RF Power Amplifier Design with Embedding Device Model
  • RF Circuits:, Multi-port Networks, Modulators , RF Analog Processing, mixers, LNA
Professional Background
FromToDesignationOrganisation
2014 Till DateAssistant ProfessorDepartment of Electronics and Communication, Indian Institute of Technology Roorkee
20132014Assistant ProfessorCentre for Applied Research in Electronics, Indian Institute of Technology Delhi
20122013Postdoctoral FellowiRadio Lab, Department of Electrical Engineering, University of Calgary
20032007Scientist/Engineer-SCMicrowave Sensors Receiver Division at Space Applications Centre, Indian Space Research Organization
Honors and Awards
AwardInstituteYear
Senior Membership IEEE2013
Member Editorial BoardWiley International Journal RFMiCAE2013
Technical Advisor PositionAvantel Ltd.2014
First Prize in 3rd Annual Smart Radio ChallengeWireless Innovation Forum2010
Best Design Prize 3rd Annual Smart Radio Challenge Wireless Innovation Forum2010
2009, 2010, 2011, Research Production AwardUniversity of Calgary2011
Educational Details
DegreeSubjectUniversityYear
PhDElectrical and Computers EngineeringUniversity of Calgary, Canada2012
MSElectrical and Computers Engineering University of Calgary, Canada2009
BEElectronics & Communication EngineeringC.C.S. University Meerut,India2002
Sponsored Research Projects
TopicFunding AgencyYear
Broad-Band Gallium Nitride Based Doherty Power Amplifier for Efficient Amplification of High Crest FDST2014
Experiments development for Software defined radio SDR-labAmitec Electronics Ltd.2014
Participation in seminars
NamePlaceSponsored ByDate
IEEE IMaRC Conference 2014 as Workshop organizer/Speaker BangaloreIEEE MTT IMaRC Conference15/12/2014
IEEE IMaRC Conference 2014 Power Amplifier Session Co-chairBangaloreIEEE MTT15/12/2013
National Conference on III-Nitride Materials and Devices as Guest SpeakerNew DelhiSSPL, DRDO9/02/2015
IEEE IMaRC Conference 2013 as Exhibition co-chairNew DelhiIEEE MTT14/12/2013
Memberships
  • IEEE, Senior Member
  • Wiley Journal: RFMiCAE (Radio frequency and microwave computer aided engineering), Member Editorial board
  • IEEE Microwave Theory and Techniques Society, Member
  • IEEE Circuit and Systems Society, Member
  • IEEE Industrial Electronics Society, Member
  • IEEE Electronic Devices Society, Member
  • IEEE Young Professionals, Member
  • IEEE Solid State Circuits Society, Member
Projects and Thesis Supervised
Title of ProjectNames of Students
Reconfigurable Concurrent Multi-band Doherty Power AmplifierRobin Kalyan
Bandwidth and Dynamic Range Extension of Load Modulation in Doherty PA ArchietectureAyushi Barthwal
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 amplifierParul Gupta
Design and Optimisation of Doherty Power Ampli er with Extended Eciency RangeAkhilesh K
PHDs Supervised
TopicScholar NameStatus of PHDRegistration Year
Reconfigurable Concurrent Multi-band Doherty Power AmplifierRobin KalyanO2013
Bandwidth and Dynamic Range Extension of Load Modulation in Doherty PA ArchietectureAyushi BarthwalO2014
Visits to outside institutions
Institute VisitedPurpose of VisitDate
Ohio State UniversityTo Deliver Invited Talk and Seek for possible collaboration11/11/2013
University of CalgaryFor Carrying out ongoing Research Collaboration11/06/2014
Invitations
TopicOrganistaionCategoryYear
Talk on Advances on Power AmplifierNational Conference on III-Nitride Materials and DevicesT2015
Talk on the Techniques in Multi-band/Multi-standard Doherty Power Amplifiers for Wireless TransmittersIEEE MTT/APS Columbus Chapter, ElectroScience Laboratory, Ohio State University TNov 2013
Talk on the Concept of Load-Modulation in Doherty Power Amplifier for Wireless TransmittersIEEE MTT-Delhi chapter TMay 2013
talk on the Power efficient multi-band/ multi-standard wireless transmitter for software defined radiosIEEE MTT Delhi Chapter TMay 2013
talk on the RF Power Amplifiers and Architectures for Upcoming Wireless CommunicationIEEE MSIT Delhi ChapterT2014
Participation in short term courses
Couse NameSponsored ByDate
RF Power Amplifiers and Application of Digital Techniques in RFCabinet Secretariat New Delhi11/04/2014
RF Techniques For Software Defined RadiosCabinet Secretariat New Delhi12/04/2014
Courses or Conferences Organised
Conference NameSponsored ByDate
Member Organizing Committee IMaRC 2013 IEEE MTT14/12/2013
Special Lectures Delivered
TitlePlaceDate
Recent Trends and Advancements in Wireless Transmitter DesignUIE, Kurukshetra University8/05/2014
Concurrent Multi-band Power Amplification for Wireless CommunicationNIT Delhi3/07/2014
Advances on power AmplifierSolid State Physics Laboratory, DRDO, New Delhi9/02/2015
Future developments of RF Transmitters for wireless communication C-DOT, Bangalore17/12/2014
National International Collaboration
TopicOrganisationLevel
1. All-digital transmitter with pulse load modulation scheme 2. Memory effect compensation in Hybrid RF/Digital Predistortion system University of Calgary (Prof. Fadhel.M. Ghannouchi)RP
Power Amplifier design using non-linear embedded modellingOhio State University (Prof. Patrick Roblin)RP
Electronic Band-gap, meta-materials for multi-band multi-harmonic matching networks.University of Calgary (Prof. F. Falcone)RP
Multi-band Transmitter and Power Amplifier design Tsinghua University Beijing (Prof. W. Chen)RP
Concurrent Multi-band Doherty Power AmplifierI.I.T DelhiPHD
Broadband Power Amplifier for efficient transmission of high Crest factor signalsI.I.T DelhiPHD
Books Authored
  1. Accepted book with title: “Multiband RF Circuits and Techniques for Wireless Transmitters”, Springer Verlag GmbH.
Refereed Journal Papers

Journal Article Published as First Author

  1. Karun Rawat, Gowrish B., G. Ajmera, A. Basu, Shiban K. Koul, "Design Scheme for broadband Doherty power amplifier using broadband load combiner", in Wiley International Journal of RF and Microwave Computer-Aided Engineering. (accepted)
  2. Karun Rawat, M.S. Hashmi, F.M. Ghannouchi, “Double the band and optimize” in IEEE Microwave Magazine, vol. 13, no. 2, April 2012, pages: 69-82.
  3. Karun Rawat, M.S. Hashmi, F.M. Ghannouchi, “Dual-Band RF Circuits and Components for Multi-standard Software Defined Radios” in IEEE Circuit and Sys. Magazine, vol. 12, no. 1, Mar. 2012, pages: 12-32.
  4. Karun Rawat, F.M. Ghannouchi, “Design methodology for dual-band Doherty power amplifier with performance enhancement using dual-Band offset lines,” in IEEE Trans. Industrial Electronics, vol.59, no. 12, Dec. 2012, pages:4831-4842.
  5. Karun Rawat, F.M. Ghannouchi, “A Design Methodology for Miniaturized Power Dividers using Periodically Loaded Slow Wave Structure with Dual Band Applications,” in IEEE Transactions on Microwave theory and Techniques , vol. 57, no. 12, part 2, Dec 2009, pages: 3380-3388.
  6. Karun Rawat, F.M. Ghannouchi, “A Novel Dual-Band Matching Technique Based on Dual-Characteristic Impedance Transformer for Dual-Band Power Amplifier Design” in IET Microwaves, Antennas & Propagation, vol. 5, no. 14, pages: 1720-1729.
  7. Karun Rawat, M. Rawat, M.S. Hashmi,  F.M. Ghannouchi, “Dual Band branch-line hybrid with distinct power division ratio at two bands ” in Wiley International Journal of RF and Microwave Computer-Aided Engineering, vol. 23, no. 1, Jan. 2013, pages 90–98.
  8. Karun Rawat, F.M. Ghannouchi, M.Rawat, M.S. Hashmi, “Analysis of Frequency Selective Impedance Loading of Transmission Lines for Dual Band Couplers,” in Wiley International Journal of RF and Microwave Computer-Aided Engineering, vol. 21, no. 3, May 2011, pages: 325-335.
  9. Karun Rawat, M. Rawat, F.M. Ghannouchi, “Compensating I-Q Imperfections in Hybrid RF/Digital Predistortion with Adapted Look up Table Implemented in FPGA,” in IEEE Transactions on Circuits and Systems II, vol. 57, no. 5, May 2010, pages: 389-393.

 

Journal Article Published as Co-author

  1. M. Jouzdani, M. M. Ebrahimi, Karun Rawat, M. Helaoui, F.M. Ghannouchi, “Envelope Tracked Pulse Gate Modulated GaN HEMT Power Amplifier for Wireless Transmitters, ” in IEEE Transaction on circuits and Systems-I, vol. 62, no. 2, pages:571-579, Feb. 2015.
  2. R. Bhattacharya, A. Basu, Karun Rawat, S.K. Koul, “A high efficiency inductor-less broadband fully integrated CMOS power amplifier, ” in Wiley International Journal of RF and Microwave Computer-Aided Engineering, digital print, DOI: 10/2014; DOI: 10.1002/mmce.20864.
  3. L. Azpilicueta, M. Rawat, Karun Rawat, F. Ghannouchi, and F. Falcone, “A Ray Launching-Neural Network Approach for Radio Wave Propagation Analysis in Complex Indoor Environments, ” in IEEE Transactions on Antenna and Propagation, IEEE Transactions on Antenna and Propagation, vol. 62, no. 5, pp. 2777-2786, May 2014. 
  4. W. Chen, S.A. Bassam, Li Xiang, Liu Yucheng, Karun Rawat, M. Helaoui, F.M. Ghannouchi and F. Zhenghe,“ Design and linearization of concurrent dual-band Doherty power amplifier with frequency-dependent power ranges,”  in IEEE Transactions on Microwave theory and Techniques, vol. 59, no. 10, pp. 2537–2546, Oct. 2011.
  5. M. Rawat, Karun 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.
  6. R. Bhattacharya, R. Gupta, A. Basu, Karun 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.
  7. M. Rawat, Karun Rawat, and F. M. Ghannouchi, “Three-Layered Biased Memory Polynomial for Dynamic Modeling and Predistortion of Transmitters,” in IEEE Transaction on circuits and Systems-I, vol. 60, no. 3, pages:768-777, March 2013.
  8. M. Rawat, Karun 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.
  9. M. S. Hashmi, F. M. Ghannouchi, P. J. Tasker, Karun Rawat, “Highly Reflective Load-Pull Techniques for Microwave Power Device Characterization,” in IEEE microwave Magazine,  vol.12 , no.4, pages: 96 - 107, Jan 2010.
  10. M. Rawat, Karun Rawat, F.M. Ghannouchi, “Adaptive Digital Predistortion of Wireless Power Amplifiers/Transmitters Using Dynamic Real-Valued Focused Time-Delay Line Neural Networks,” in IEEE Transactions on Microwave theory and Techniques, vol.58 , no.1, pages: 95-104, Jan 2010.
  11. M. Rawat, Karun 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, accepted to be published.
  12. M. Rawat, Karun 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.