Department of Electronicsand Electrical Engineering
- +91-361-2582550
- eeeoff@iitg.ac.in
-
Department of Electronics and Electrical Engineering
Indian Institute of Technology Guwahati
Department of Electronics and Electrical Engineering
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 IRINSAcademic Qualifications:
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,
PSU, USA
2. Research Associate (Oct 2004- Feb 2005), Department of ECE, IISc Bengaluru
1. Software Engineer (Aug 2000- Jul 2001), Mphasis, Pune
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].
1. B. B. Pathak, R. S. Sangam, R. S. Kshetrimayum, J. Hong, M. A. Morgan, "Uniplanar Conformal Centre-Split M-Unit Cell employed SSPP Broadband Bandpass Filter for B5G Radio Stripe Networks", IEEE Microwave and Wireless Technology Letters [2025].
2. 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: 3.7) , vol.22 ,pp.19-23, [2023].
3. 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: 3.7) [2023].
4. M. Mishra, S. Chaudhuri, R. S. Kshetrimayum, M. S. Sharawi and A. A. Kishk, "Π/8 SIW Cavity Based 8-Port MIMO Antenna ", IEEE Antennas and Wireless Propagation Letters (Impact Factor: 3.7) ,pp.1721-1725, [2023].
5. 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: 4.6) , vol.71 ,pp.9974-9979, [2023].
6. 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: 3.4) , vol.10 ,pp.49829-49838, [2022].
7. R. S. Kshetrimayum, "Comment on “Compact UWB Monopole Antenna for Automotive Communications"", IEEE Transactions on Antennas and Propagation (Impact Factor: 5.7) , vol.70 ,pp.1591-1591, [2022].
8. 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: 5.3) , vol.5, issue 4 ,pp.1684-1696, [2021].
9. A. Bhowal and R. S. Kshetrimayum, "Advanced Optical Spatial Modulation Techniques for FSO Communication", IEEE Transactions on Communications (Impact Factor: 7.2) , vol.69, issue 2 ,pp.1163-1174, [2021].
10. 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: 4.0) , vol.68, issue 1 ,pp.181-185, [2021].
11. 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: 3.7) , vol.19, issue 9 ,pp.1501-1505, [2020].
12. 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: 7.2) , vol.68, issue 8 ,pp.5018-5027, [2020].
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: 3.7) , vol.23, issue 12 ,pp.2301-2305, [2019].
15. A. Bhowal and R. S. Kshetrimayum,, "Performance analysis of B2B communication for different sporting activities", IEEE Sensors Letters (Impact Factor 2.2) , vol.3 [2019].
16. 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: 6.1) , vol.117 ,pp.425-434, [2011].
17. 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: 4.6) , vol.53, issue 1 I ,pp.120-124, [2005].
1. A Kumar, D Chaturvedi, MP Abegaonkar, RK Sonkar, RS Kshetrimayum, "QMSIW Based Self-Diplexing MIMO Antenna", European Conference on Antennas and Propagation (EuCAP), Stockholm, Sweden , IEEE [2025].
2. SK Sahu, RS Kshetrimayum, RK Sonkar, "High Gain SIW-Fed Notched Spherical-Frustum Shaped Stacked DRA for B5G Application", European Conference on Antennas and Propagation (EuCAP), Stockholm, Sweden , IEEE [2025].
3. 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), Glasgow, Scotland, UK , IEEE [2024].
4. 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].
5. 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].
6. 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].
7. 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].
8. 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].
9. 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].
10. 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].
11. 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].
12. 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].
13. 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].
14. 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].
15. 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].
16. 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].
17. 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].
18. 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].
19. 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].
20. 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].
21. 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].
22. 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].
23. 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].
24. 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].
25. 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].
26. 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].
27. 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].
28. R. S. Kshetrimayum and L. Zhu, "A Novel Waveguide Based Metamaterials", International Symposium on Antennas and Propagation (ISAP), Sendai, Japan [2004].
29. 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].
30. 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].
5. Fellow, Institution of Engineers (India), 2018-
4. Fellow, Institution of Engineering and Technology (IET), UK, 2017-
3. Fellow, Institution of Electronics and Telecommunication Engineers (IETE), 2014-
2. Fellow, Optical Society of India, 2014-
1. Fellow, Antennas Test & Measurement Society of India, 2014-
1. Stanford University's World Top 2% Scientists, 2020-
11. Top cited article 2021-2022 IET Microwaves, Antennas & Propagation
10. Top cited article 2020-2021 International Journal of RF and Microwave Computer-Aided Engineering (Wiley)
9. Top downloaded paper 2018-2019 International Journal of RF and Microwave Computer-Aided Engineering (Wiley)
8. IEEE ANTS 2017 Best Paper Award (Third Prize)
7. IETE S K Mitra Memorial Award 2017 for the IETE Journal of Research best research oriented paper (Gold medal and citation)
6. Certificate of outstanding contribution in reviewing for AEU International Journal of Electronics and Communications (Elsevier), 2016
5. IETE M. Rathore Memorial Award in recognition of significant contribution in the field of electronics and communication 2015 (Gold medal and citation)
4. FASTRACK Scheme for Young Scientists, Department of Science & Technology, India, 2007-2010
3. Postdoctoral fellowship, Pennsylvania State University, University Park, Pennsylvania, USA, 2005-2006
2. Financial Support Programme, International Symposium on Microwave and Optical Technology, Fukuoka, Japan, 2005
1. NTU Singapore Research Scholarship, 2001-2004
Granted:
4. S. K. Sahu, R. S. Kshetrimayum and R. K. Sonkar, Frustrum-capped cylindrical dielectric resonator MIMO antenna, Indian Design Patent granted in 2025
3. B. B. Pathak and R. S. Kshetrimayum, Ultra-thin conformal low-pass filter, Design Patent granted in 2024.
2. B. B. Pathak and R. S. Kshetrimayum, Ultra-thin conformal bandpass filter, Design Patent granted in 2024.
1. A. M. Sonagara and R. S. Kshetrimayum, Ultra-thin MIMO Filtenna, Design Patent granted in 2024.
Published:
1. 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.
Applied:
2. S. K. Sahu, R. S. Kshetrimayum and R. K. Sonkar, Stacked Tri-Pentagonal Prism dome dieletric resonator antenna, Indian Design Patent filed, Jan. 2025
1. S. K. Sahu, R. S. Kshetrimayum and R. K. Sonkar, Hemispherical-frustrum shaped dielectric resonator antenna, Indian Design Patent filed, Oct. 2024
Department of Electronics and Electrical Engineering Indian Institute of Technology Guwahati Guwahati, Assam, India.PIN-781 039. Email: eeeoff@iitg.ac.in Telehone: +91-361-2582550 Fax: +91-361-2582542 +91-361-2690762
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