• header-logo.png Department of Electronics and Electrical Engineering
    Indian Institute of Technology Guwahati
header-logo.png Department of Electronics
and Electrical Engineering
Rakhesh Singh Kshetrimayum

Prof. Rakhesh Singh Kshetrimayum

Professor

Key Research Areas : Printed antenna and DRA design for 5G and beyond applications; Microwave filter and other passive device design using SSPP structures for 5G and beyond; 5G and beyond: Cell-free massive MIMO, RIS aided wireless communications

Phone No: +91-361-2582514 (O) | Email: krs@iitg.ac.in| Room No: 203

Personal Website   IRINS

1. Indian Institute of Technology (IIT), Bombay, BTech (July 1996-Apr. 2000), Dept. of EE
2. Nanyang Technological University (NTU), Singapore, PhD (Aug. 2001-Aug. 2004), School of EEE

3. Indian Institute of Science (IISc), Bangalore, Postdoctoral Research (Oct 2004- Feb 2005),  Department of ECE

4. Pennsylvania State University (Penn State), University Park, USA, Postdoctoral Research (May 2005- Jul 2005), Department of EE

 

8. Professor (Jan. 2017 - ), Department of EEE, IIT Guwahati
7. Head (Apr. 2018- Mar. 2020), Centre for Career Development, IIT Guwahati
6. Associate Professor (Sep. 2010- Jan. 2017), Department of EEE, IIT Guwahati
5. Asst. Professor (Sep. 2006 - Sep. 2010), Department of EEE, IIT Guwahati
4. Senior Lecturer (Sep. 2005 - Sep. 2006), Department of ECE, IIT Guwahati
3. Postdoctoral Scholar (May 2005- Jul 2005), Department of EE, Pennsylvania State University (Penn State), University Park, USA
2. Research Associate (Oct 2004- Feb 2005), Department of ECE, Indian Institute of Science (IISc), Bangalore
1. Software Engineer (Aug 2000- Jul 2001), MphasiS, Pune

Postgraduate courses:

Previous courses:

  • EE 442 Microwave Engineering Lab (2010-19)
  • EE 340 Electromagnetic Theory (2014-2018)
  • EE 340M Electromagnetic Field Theory (2014-17)
  • EE 635 Advanced Topics in Communication Systems (Jan.-Apr. 2010-2014)
  • EE 441 Microwave Engineering (Jul.-Nov. 2010-2014)
  • EE 101 Electrical Science (tutor) (Jul.-Nov. 2010-2014)
  • EC 337 Information Theory and Coding (May-July, 2014)
  • EE 102 Basic Electronics Laboratory (Jan.-Apr. 2010-2013)
  • EE230 Principles of Communications (tutor) (Jan.-Apr. 2010-2012)

Books

1. A. Bhowal and R. S. Kshetrimayum, "Advanced Spatial Modulation Systems", 0 , Springer Nature, Singapore , (DOI - 9789811599590) [2021].

2. B. Kumbhani and R. S. Kshetrimayum, "MIMO wireless communications over generalized fading channels", MIMO Wireless Communications over Generalized Fading Channels , CRC Press, USA , (DOI - 9781138033009) -267, [2017].

3. R. S. Kshetrimayum, "Fundamentals of MIMO Wireless Communications", 0 , Cambridge University Press, UK , (DOI - 9781108234993) [2017].

Journal Publications

1. R. S. Kshetrimayum, M. Mishra, S. Aïssa, S. K. Koul and M. S. Sharawi, "Diversity Order and Measure of MIMO Antennas in Single-User, Multi-User and Massive MIMO Wireless Communications ", IEEE Antennas and Wireless Propagation Letters (Impact Factor: 4.2) , vol.22 ,pp.19-23, [2023]. , https://ieeexplore.ieee.org/document/9864042

2. A. M. Sonagara, M. Mishra, R. S. Kshetrimayum, E. Björnson, Z. N. Chen, "Ultra-Thin Flexible Uniplanar Antenna Based on SSPP for B5G Radio Stripe Network", IEEE Antennas and Wireless Propagation Letters (Impact Factor: 4.2) [2023]. , https://ieeexplore.ieee.org/document/10107916

3. M. Mishra, S. Chaudhuri, R. S. Kshetrimayum, M. S. Sharawi and A. A. Kishk, "A Highly Efficient & Low-Mutual Coupling Partial Π/8 SIW Cavity Based 8-Port MIMO Antenna ", IEEE Antennas and Wireless Propagation Letters (Impact Factor: 4.2) , (DOI - 10.1109/LAWP.2023.3262159) ,pp.1721-1725, [2023]. , https://ieeexplore.ieee.org/document/10081353

4. M. Mishra, K. Dutta, R. S. Kshetrimayum, M. S. Sharawi, A. A. Kishk, S. Chaudhuri and S. Bhunia, "

Mutual Coupling Reduction Between Two Tightly Packed Half-Split Cylindrical Dielectric Resonator Antennas

", IEEE Transactions on Antennas and Propagation (Impact Factor: 5.7) , vol.71 , (DOI - 12) ,pp.9974-9979, [2023]. , https://ieeexplore.ieee.org/document/10292568

5. M. Mishra, S. Chaudhury, R. S. Kshetrimayum, A. Alphones and K. P. Esselle, "Space Efficient Meta-grid Lines for Mutual Coupling Reduction in Two-Port Planar Monopole and DRA Array", IEEE Access (Impact Factor: 3.9) , vol.10 ,pp.49829-49838, [2022].

6. R. S. Kshetrimayum, "Comment on “Compact UWB Monopole Antenna for Automotive Communications", IEEE Transactions on Antennas and Propagation (Impact Factor: 5.7) , vol.70 , (DOI - 2) ,pp.1591-1591, [2022].

7. A. Bhowal, S. Aïssa and R. S. Kshetrimayum, "RIS-Assisted Advanced Spatial Modulation Techniques for Ambient Backscattering Communications", IEEE Transactions on Green Communications and Networking (Impact Factor: 4.8) , vol.5, issue 4 , (DOI - 10.1109/TGCN.2021.3100009) ,pp.1684-1696, [2021].

8. A. Bhowal and R. S. Kshetrimayum, "Advanced Optical Spatial Modulation Techniques for FSO Communication", IEEE Transactions on Communications (Impact Factor: 8.3) , vol.69, issue 2 , (DOI - 10.1109/TCOMM.2020.3035400) ,pp.1163-1174, [2021].

9. R. S. Sangam, S. Dash and R. S. Kshetrimayum, "Ultra-Broadband Bandpass Filter Using Linearly Tapered Coupled-Microstrip Line and Open Loop Defected Ground Structure", IEEE Transactions on Circuits and Systems II: Express Briefs (Impact Factor: 4.4) , vol.68, issue 1 , (DOI - 10.1109/TCSII.2020.3009415) ,pp.181-185, [2021].

10. S. Chaudhuri, M. Mishra, R. S. Kshetrimayum, R. K. Sonkar, H. Chel, and V. K. Singh, "Rectangular DRA Array for 24 GHz ISM-Band Applications", IEEE Antennas and Wireless Propagation Letters (Impact Factor: 4.2) , vol.19, issue 9 , (DOI - 10.1109/LAWP.2020.3007585) ,pp.1501-1505, [2020].

11. A. Bhowal and R. S. Kshetrimayum, "Relay Based Hybrid FSO/RF Communication with Hybrid Spatial Modulation and Transmit Source Selection", IEEE Transactions on Communications (Impact Factor: 8.3) , vol.68, issue 8 , (DOI - 10.1109/TCOMM.2020.2991054) ,pp.5018-5027, [2020].

12. M. Mishra, S. Chaudhury, R. S. Kshetrimayum and H. Chel, "Low Mutual Coupling Six-Port Planar Antenna for the MIMO Applications (Top cited article 2020-2021)", International Journal of RF and Microwave Computer-Aided Engineering (Wiley, Impact factor: 1.7) , vol.32 , (DOI - 12) [2020]. , https://onlinelibrary.wiley.com/doi/10.1002/mmce.22439

13. R. S. Sangam and R. S. Kshetrimayum, "Comment on Hybrid Spoof Surface Plasmon Polariton and Substrate Integrated Waveguide Broadband Band pass Filter With Wide Out-of-Band Rejection", IEEE Microwave and Wireless Components Letters (Impact Factor: 3) , vol.30 , (DOI - 2) ,pp.222-222, [2020].

14. A. Bhowal and R. S. Kshetrimayum, "Transmit Laser Selection for Two Hop Decode and Forward FSO Communication with Pointing Errors", IEEE Communications Letters (Impact Factor: 4.1) , vol.23, issue 12 , (DOI - 10.1109/LCOMM.2019.2942309) ,pp.2301-2305, [2019].

15. S. Chaudhury, R. S. Kshetrimayum and R. K. Sonkar, "High inter-port isolation dual circularly polarised slot antenna with split-ring resonator based novel metasurface", AEU International Journal of Electronics and Communications (Elsevier, Impact Factor: 3.2) , vol.107 ,pp.146-156, [2019]. , https://doi.org/10.1016/j.aeue.2019.05.016

16. S. Chaudhury, R. S. Kshetrimayum and R. K. Sonkar, " High inter-port isolation dual circularly polarized slot antenna with interdigital capacitor (Top downloaded paper 2018-2019)", International Journal of RF and Microwave Computer-Aided Engineering (Impact factor: 1.7) , vol.29 , (DOI - 10) [2019]. , https://onlinelibrary.wiley.com/doi/abs/10.1002/mmce.21903

17. A. Bhowal and R. S. Kshetrimayum,, "Performance analysis of B2B communication for different sporting activities", IEEE Sensors Letters (Impact Factor 2.8) , vol.3 , (DOI - 7) [2019].

18. B. Kumbhani and R. S. Kshetrimayum, ""Performance Analysis of MIMO systems with Antenna Selection over Generalized k − μ Fading Channels (IETE S K Mitra Memorial Award 2017 for the IETE Journal of Research best research oriented paper)", IETE Journal of Research (Impact factor: 1.7) , vol.62 , (DOI - 1) ,pp.45-54, [2016]. , https://www.tandfonline.com/doi/abs/10.1080/03772063.2015.1082444?journalCode=tijr20

19. A. Agrawal and R. S. Kshetrimayum, "Analysis of UWB communication over IEEE802.15.3a channel by superseding lognormal shadowing by mixture of Gamma distributions", AEU International Journal of Electronics and Communications (Impact Factor: 3.2) , vol.69 , (DOI - 12) ,pp. 1795- 1799, [2015]. , https://doi.org/10.1016/j.aeue.2015.09.003

20. J. R. Panda and R. S. Kshetrimayum, "A Printed 2.4 GHz/5.8 GHz Dual-band Monopole Antenna with a Protruding Stub in the Ground Plane for WLAN and RFID Applications", Progress In Electromagnetics Research (Impact Factor: 6.7) , vol.117 ,pp.425-434, [2011]. , http://www.jpier.org/PIER/pier.php?paper=11051301

21. R. S. Kshetrimayum, S. S. Karthikeyan and D. Dey, "Band Gap Determination of Triangular Lattice EBGs in the Ground Plane", AEU International Journal of Electronics and Communication (Impact Factor: 3.2) , vol.63 , (DOI - 8) ,pp. 699-702, [2009]. , https://doi.org/10.1016/j.aeue.2008.05.006

22. R. S. Kshetrimayum and L. Zhu, "Guided-wave characteristics of waveguide based periodic structures loaded with various FSS strip layers", IEEE Transactions on Antennas and Propagation (Impact Factor: 5.7) , vol.53, issue 1 I , (DOI - 10.1109/TAP.2004.840527) ,pp.120-124, [2005].

Conference Publications

1. SK Sahu, RS Kshetrimayum, RK Sonkar, "High Gain and Dual Band SIW-Fed Stacked Conical DRA for 5G NR FR1 Application", European Conference on Antennas and Propagation (EuCAP) , IEEE [2024].

2. M. Mishra, S. Chaudhuri, R. S. Kshetrimayum and K. Dutta, " New Design Approach for Mutual Coupling Reduction in Two-Port Compact Antenna Array for W-LAN MIMO Applications", URSI Atlantic / Asia-Pacific Radio Science Conference (AT-AP-RASC), Gran Canaria, Spain, , IEEE [2022].

3. A. M. Sonagara and R. S. Kshetrimayum, "Broadside Radiation based on Even-mode Spoof Surface Plasmon Polaritons Excited by Slot in AMC Ground Plane", URSI Atlantic / Asia-Pacific Radio Science Conference (AT-AP-RASC), Gran Canaria, Spain, , IEEE [2022].

4. S. Kongari, M. Mishra and R. S. Kshetrimayum, "High Gain Circularly Polarized Cylindrical DRA for mm-wave On-chip Applications", URSI Atlantic / Asia-Pacific Radio Science Conference (AT-AP-RASC), Gran Canaria, Spain, , IEEE [2022].

5. S. Kongari, M. Mishra and R. S. Kshetrimayum, " Low Mutual Coupling with High Efficiency Circularly Polarized MIMO DRA for On-Chip mm-Wave Applications", Asia-Pacific Microwave Conference (APMC), Yokohama, Japan , IEEE [2022].

6. S. Kumar and R. S. Kshetrimayum, "A Unidirectional Ku-band Antenna With a High Front-to-Back ratio by Integration of Cylindrical DRA With Cylindrical SSPP Structure", International Symposium on Antennas and Propagation (ISAP), Taipei, Taiwan , IEEE [2021].

7. S. Lakkimsetti and R. S. Kshetrimayum, "Ultra-thin and conformal SSPP based UWB low pass filter for B5G Radio Stripe Networks", IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), Penang, Malaysia , IEEE [2021].

8. S. Kumar, A. M. Sonagara and R. S. Kshetrimayum, "A Bidirectional pattern of DRA by Employing Cylindrical Spoof Surface Plasmon Polariton", IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (APS/URSI), Singapore , IEEE [2021].

9. S. Lakkimsetti, R. S. Kshetrimayum and M. A. Morgan, "Broadband Input Quasi-Reflectionless BPF and BSF for 5G Applications", Asia-Pacific Microwave Conference (APMC), Brisbane, Australia , IEEE [2021].

10. A. M. Sonagara and R. S. Kshetrimayum, "Circularly Polarized Antenna based on Spoof Surface Plasmon Polaritons using Artificial Ground Plane", IEEE 19th International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), Winnipeg, Canada , IEEE , (DOI - 10.1109/ANTEM51107.2021.9518705) [2021].

11. A. Bhowal, S. Aïssa and R. S. Kshetrimayum, "RIS-Assisted Spatial Modulation and Space Shift Keying for Ambient Backscattering Communications", IEEE International Conference on Communications (ICC), Montreal, Canada , (DOI - 10.1109/ICC42927.2021.9500428) [2021].

12. A. Sundrani, S. Kumar and R. S. Kshetrimayum, "Dual-band coplanar SSPP endfire radiating antenna", International Symposium on Antennas and Propagation (ISAP), Osaka, Japan , (DOI - 10.23919/ISAP47053.2021.9391502) ,pp.553-554, [2021].

13. M. Mishra, S. Chaudhuri and R. S. Kshetrimayum, "Four-port DRA array for MIMO applications", International Symposium on Antennas and Propagation (ISAP), Osaka, Japan , (DOI - 10.23919/ISAP47053.2021.9391388) ,pp.765-766, [2021].

14. M. Mishra, R. S. Kshetrimayum and S. Chaudhuri, "Low Mutual Coupling Dual-port Dual-band MIMO Antenna Array for Mobile Terminal", URSI General Assembly (URSI-GA), Rome, Italy , (DOI - 10.23919/URSIGASS49373.2020.9231995) [2020].

15. M. Mishra, S. Chaudhuri, R. S. Kshetrimayum and S. Bhunia, "Highly compact DRA array using metallic grid-shaped partial ground plane", IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP), Suzhou, China , (DOI - 10.1109/IMWS-AMP49156.2020.9199697) [2020].

16. M. Mishra, R. S. Kshetrimayum and S. Chaudhuri, "Low Mutual Coupling Four-Port MIMO Antenna Array for 3.5 GHz WiMAX Application", IEEE Region 10 Symposium (TENSYMP), Dhaka, Bangladesh , (DOI - 10.1109/TENSYMP50017.2020.9231046) ,pp.791-794, [2020].

17. S. Chaudhuri, R. S. Kshetrimayum, R. K. Sonkar and M. Mishra, "Wideband Rectangular Dielectric Resonator Antenna Array for ISM Band Applications", IEEE TENSYMP, Dhaka, Bangladesh , (DOI - 10.1109/TENSYMP50017.2020.9230908) ,pp.622-625, [2020].

18. A. Bhowal, R. S. Kshetrimayum, "Transmit laser selection for dual hop decode and forward UOWC cooperative communication", IEEE Wireless Communications and Networking Conference (WCNC), Seoul, South Korea , vol.2020-May , (DOI - 10.1109/WCNC45663.2020.9120482) [2020].

19. S. Chaudhuri, R. S. Kshetrimayum, R. K. Sonkar, and D. Mishra, "High Gain Dual Linearly Polarized Patch Antenna Array", PhotonIcs & Electromagnetics Research Symposium (PIERS), Rome, Italy , vol.2019-June , (DOI - 10.1109/PIERS-Spring46901.2019.9017365) ,pp.961-963, [2019].

20. S. Chaudhuri, R. S. Kshetrimayum, R. K. Sonkar, and D. Mishra, "Dual Circularly Polarized Slot Antenna with Novel Isolator", PhotonIcs & Electromagnetics Research Symposium (PIERS), Rome, Italy , vol.2019-June , (DOI - 10.1109/PIERS-Spring46901.2019.9017590) ,pp.595-598, [2019].

21. S. Chaudhuri, R. S. Kshetrimayum and R. K. Sonkar, "High Inter-port Isolation Dual Circularly Polarized Modified Franklin Microstrip Antenna", European Conference on Antennas and Propagation (EuCAP), Krakaw, Poland [2019].

22. A. Agrawal and R. S. Kshetrimayum, "Average SINR Analysis of mm-Wave System at 60 GHz Using First and Second order Moments (IEEE ANTS 2017 Best Paper Award (Third Prize) )", IEEE International Conference on Advanced Networks and Telecommunications Systems (IEEE ANTS) , IEEE [2017].

23. B. Kumbhani, V. K. Mohandas, R. P. Singh, S. Kabra and R. S. Kshetrimayum, "Analysis of space-time block coded spatial modulation in correlated Rayleigh and Rician fading channels", IEEE International Conference on Digital Signal Processing (DSP), Singapore , vol.2015-September , (DOI - 10.1109/ICDSP.2015.7251926) ,pp.516-520, [2015].

24. R. S. Kshetrimayum and L. Zhu, "Novel architecture for waveguide based metamaterials", International Zurich Symposium on Electromagnetic Compatibility, Singapore , (DOI - 10.1109/emczur.2006.214864) ,pp.42-44, [2006].

25. R. S. Kshetrimayum, A. V. Sathanur and K. J. Vinoy, " Integration of 2-D PBG structures in the ground and substrate with the enhanced performance", International Symposium on Microwave and Optical Technology (ISMOT), Fukuoka, Japan [2005].

26. R.S. Kshetrimayum , "Reducing the number of unknowns in the FFT-employed BOR EM scattering problems", Asia Pacific Microw. Conf. (APMC), Suzhou, China , vol.3 , (DOI - 10.1109/APMC.2005.1606561) ,pp.2 [2005].

27. R. S. Kshetrimayum and L. Zhu, "A Novel Waveguide Based Metamaterials", International Symposium on Antennas and Propagation (ISAP), Sendai, Japan [2004].

28. R. S. Kshetrimayum and L. Zhu, "Multimode Network Equivalence of Waveguide Discontinuities using full-wave Method of Moments for Spatial Power Combining System", Progress in Electromagnetics Research Symposium (PIERS), Singapore [2003].

29. R. S. Kshetrimayum and L. Zhu, "Equivalent Circuit Model of Planar Strips in Layered Waveguide for Synthesis Design of Printed Periodic Waveguide Structures", APMC, Seoul, South Korea [2003].

Fellowships/Memberships:

7. Senior Member, URSI, Belgium, 2021-

6. Fellow, Institution of Engineers (India), 2018-

5. Fellow, IET, UK, 2017-

4. Fellow, Institution of Electronics and Telecommunication Engineers (IETE), 2014-

3. Fellow, Optical Society of India, 2014-

2. Fellow, Antennas Test & Measurement Society of India, 2014-

1. IEEE USA (Student' 2001 - Member' 2005 - Senior Member' 2014-)

Honors:

1. Stanford University's World Top 2% Scientists: In the sub-field (Networking & Telecommunications) in field (Information & Communication Technologies) [ranked 1533 (2022), 1007 (2021), 1108 (2020), 1938 (2019) for the single year] [ranked 2559 (2022), 2696 (2021), and 3007 (2020) for the whole career]

Awards/Scholarships/Recognitions:

19. Top cited article 2021-2022 IET Microwaves, Antennas & Propagation for the co-authored paper titled “Hybrid spoof surface plasmon polariton and substrate integrated waveguide bandpass filter with high out-of-band rejection for X-band applications

18. Top cited article 2020-2021 International Journal of RF and Microwave Computer-Aided Engineering (Wiley) for the co-authored paper titled "Low Mutual Coupling Six-Port Planar Antenna for the MIMO Applications"

17. Top downloaded paper 2018-2019 International Journal of RF and Microwave Computer-Aided Engineering (Wiley) for the co-authored paper titled "High inter-port isolation dual circularly polarized slot antenna with interdigital capacitor"

16. Global Peer Review Award --- Publons Top Peer Reviewer 2019, Top 1% Reviewer in Engineering

15. Global Peer Review Award --- Publons Top Peer Review 2019, Top 1% Reviewer in Cross-fields

14. Global Peer Review Award --- Publons Top Peer Reviewer 2018, Top 1% Reviewer in Cross-fields

13. IEEE ANTS 2017 Best Paper Award (Third Prize) for the co-authored paper titled "Average SINR Analysis of mm-Wave System at 60 GHz Using First and Second order Moments", in Proc. IEEE International Conference on Advanced Networks and Telecommunications Systems (IEEE ANTS)

12. IETE S K Mitra Memorial Award 2017 for the IETE Journal of Research best research oriented paper (Gold medal and citation) for the co-authored paper titled "Performance Analysis of MIMO systems with Antenna Selection over Generalized k − μ Fading Channels"

11. Certificate of outstanding contribution in reviewing for AEU International Journal of Electronics and Communications (Elsevier), 2016

10. IETE M. Rathore Memorial Award in recognition of significant contribution in the field of electronics and communication, publishing scientific papers and guiding PhD students in the field, 2015 (Gold medal and citation)

9. FASTRACK Scheme for Young Scientists, Department of Science & Technology, India, 2007-2010

8. Postdoctoral fellowship, Pennsylvania State University, University Park, Pennsylvania, USA, 2005-2006

7. Financial Support Programme, International Symposium on Microwave and Optical Technology, Fukuoka, Japan, 2005

6. Certificate of Merit, NTU Singapore, 2004

5. NTU Singapore Research Scholarship, 2001-2004

4. Certificate of Achievement, MphasiS Pune, 2000

3. Certificate of Merit, IIT Bombay, 1997

2. State representative, 1st National Children's Science Congress, New Delhi, 1993

1. Secured 2nd position, State Competitive Scholarship Examination, 1988

B. B. Pathak and R. S. Kshetrimayum, Ultra-thin conformal bandpass filter, Design Patent granted in 2024.
B. B. Pathak and R. S. Kshetrimayum, A conformal ultra-thin broadband bandpass filter system for beyond 5G radio stripe networks, Utility Patent filed on 2024-04-15, Published on 2024-07-05.
B. B. Pathak and R. S. Kshetrimayum, Ultra-thin conformal low-pass filter, Design Patent granted in 2024.

A. M. Sonagara and R. S. Kshetrimayum, Ultra-thin MIMO Filtenna, Design Patent granted in 2024.