Books/ Reports/ General articles

  • Dielectric Resonator Antennas Terminated in a Bio-medium, LAP LAMBERT Academic Publishing ISBN-13: 978-3-659-21885-9, ISBN-10:3659218855, EAN: 9783659218859.

Book chapter

  • G Das, RK Gangwar – “Chapter 10: Dielectric Resonator Based Multiple Input Multiple Output MIMO Antennas” Printed Antennas: Theory and Design, 2020 CRC Publishers

International Journals


  1. A. K. Pandey, Ravi Kumar Gangwar, and R. K. Chaudhary, “A Compact SD-QMSIW-Based Self-Diplexing MIMO Antenna Using Two Modified L-Shaped Slots as Radiators for IoT Applications,” IEEE Internet of Things Journal, September 2024. (Accepted)

  2. Aks Raj, Varun Chaudhary, Ravi Kumar Gangwar,, and R. K. Chaudhary, “Pioneering Multi-functionality through VO2-infused Polarization Insensitive Conformal Meta-Structures in Terahertz Regime,” IEEE Transactions on Nanotechnology, September 2024. (Accepted)

  3. Gouri Shankar Sharma, Anshul Gupta, Ravi Kumar Gangwar,, and Amit Kumar Pandey, “Dielectric Resonator-based 8-Port Box-Shaped Wideband MIMO Antenna with Multi-Directional Pattern Diversity,” AEU - International Journal of Electronics and Communications, .[Link]

  4. Aks Raj, Varun Chaudhary, Ravi Kumar Gangwar,, and Raghvendra Kumar Chaudhary, “Experimental and Analytical Analysis of Conformal and Polarization Insensitive Electromagnetic Absorber,” AEU - International Journal of Electronics and Communications, .[Link]

  5. Tarun Prakash, Ravi Kumar Gangwar,, and Raghvendra Kumar Chaudhary, “Single/ Bi-directional Pattern and Beamwidth Reconfigurable Array Antenna Using Reconfigurable Reflecting Surface,” Microwave and Optical Technology Letters, .[Link]

  6. Sachin Maithani, Ravi Kumar Gangwar,, “A Compact, Dual-band, Full-Duplex Conformal Filtering Antenna Array for Seamless Vehicular Connectivity,” IEEE Transactions on Vehicular Technology, .[Link]

  7. Kundan Kumar Suman, Tripta Kumari, Ravi Kumar Gangwar,, and Veer Singh Gangwar “Design and Optimization of a Monolithic Thinned Dielectric Superstrate for Performance Enhancement in DRAA,” IEEE Antennas and Wireless Propagation Letters, .[Link]

  8. Virendra Kumar, Rakesh Kumar Verma, Shreeshail, U. S. Pandey, K. S. Beenamole, and Ravi Kumar Gangwar,, “High-Performance S-Band GaN T/R Module Using Hybrid Microwave Integrated Circuit,” IEEE Access, .[Link]

  9. A. K. Pandey, N. K. Sahu, Ravi Kumar Gangwar, and R. K. Chaudhary, "A SIW-Cavity-Backed Wideband Circularly Polarized Antenna Using Modified Split-Ring Slot as a Radiator for mm-Wave IoT Applications," in IEEE Internet of Things Journal ,.[Link]

  10. Nikesh Kumar Sahu, and Ravi Kumar Gangwar, " MIMO-DRA with triple-band CP & low EM coupling: a methodical design approach," Waves in Random and Complex Media, March 2023. (Accepted)

  11. Virendra Kumar, Rakesh Kumar Verma, Shreeshail, U. S. Pandey, K. S. Beenamole, and Ravi Kumar Gangwar, “Investigation of active phased arrays performance deficiency due to array planarity and misalignment”, Journal of Electromagnetic Waves and Applications, November, 2022. (Accepted)

  12. Virendra Kumar, Chakkandan Arjunan Sreejith, Shreeshail, Upendra Shankar Pandey, Karukunnel Beenamole, and Ravi Kumar Gangwar, “Demonstration and Performance Appraisal of Calibration Network for Multi-Element Calibration in Active Phased Array”, Progress In Electromagnetics Research M, Vol. 112, pp. 217-230, 2022.

  13. K. K. Suman, P. Ashwin, R. K. Gangwar and V. S. Gangwar, “Compact, Low Profile and high-Performance Monopulse Antenna Array for Missile Seeker”, Journal of Electromagnetic Waves and Applications, July 2022. (Accepted)

  14. Poonam Kumari, Ravi Kumar Gangwar and R K Chaudhary, “An Aperture Coupled Stepped Dielectric Resonator UWB MIMO Antenna with AMC" IEEE Antennas and Wireless Propagation Letters, Volume 21, Issue 10, pp. 2040-2044, October 2022.

  15. Nikesh Kumar Sahu, and Ravi Kumar Gangwar, "Dual-Port Compact MIMO-DRAs: Exploiting Metallic Sheets to Increase Inter-Port Isolation at 28 GHz 5G-Band," IEEE Transactions on Circuits and Systems--II: Express Briefs, vol. 69, no. 12, pp. 4814-4818, Dec. 2022.

  16. Yatendra Kumar, Ravi Kumar Gangwar & Binod Kumar Kanaujia, “Characterization of Dual-Band Circularly Polarized Mushroom-shaped Monopole Antenna with Modified Ground Plane” Frequenz, June 2022. (Accepted)

  17. Tarun Prakash, Raghvendra Kumar Chaudhary, Ravi Kumar Gangwar, “A reconfigurable active microstrip antenna for agile switching: Pattern, beamwidth, and multibeam,” AEU - International Journal of Electronics and Communications, Volume 149,2022,154181,

  18. Jayshri Kulkarni, Chow-Yen-Desmond Sim, Ravi Kumar Gangwar, Jaume Anguera, “Broadband and Compact Circularly Polarized MIMO Antenna with Concentric Rings and Oval Slots for 5G Application,” IEEE Access, March 2022.

  19. Yatendra Kumar, Ravi Kumar Gangwar & Binod Kumar Kanaujia, “Multi-Band Different Polarized Monopole Antenna with Modified Ground for WLAN & Wi-MAX Applications” International Journal of Electronics, Vol. 110, issue 3, pp. 564-585, March 2022. (Accepted)

  20. Preeti Kumari, Ravi Kumar Gangwar, P M Sarun and Devendra Kumar, “Effect of BaTiO3 addition on the microwave dielectric properties of MgO–Al2O3–SiO2–TiO2 glass-ceramic”, Materials Chemistry and Physics, Volume 275, 125276, 1 January 2022.

  21. Nikesh Kumar Sahu, Gourab Das, Ravi Kumar Gangwar and K Rambabu, “An Arrangement for four-element MIMO DRA with Complementary CP Diversity”, IEEE Antennas and Wireless Propagation Letter, June 2021.

  22. Anand Sharma, Gourab Das, Surbhi Gupta, and Ravi Kumar Gangwar, “Quad Band Quad Sense Circularly Polarized Dielectric Resonator Antenna for GPS/CNSS/WLAN/WiMAX Applications”, IEEE Antennas and Wireless Propagation Letter, Vol. 19, Issue 03, pp. 403 – 407, March 2020.

  23. Gourab Das, Anand Sharma, Ravi Kumar Gangwar and M. S. Sharawi, “Performance Improvement of Multiband MIMO Dielectric Resonator Antenna System with a Partially Reflecting Surface”, IEEE Antennas and Wireless Propagation Letter, Vol. 18, Issue 10, pp. 2105 – 2109, August 2019.

  24. Gourab Das, Anand Sharma, Ravi Kumar Gangwar and M. S. Sharawi, “FSS Based Spatially Decoupled Back to Back Four Port MIMO DRA with Multi-Directional Pattern Diversity”, IEEE Antennas and Wireless Propagation Letter, Vol. 18, Issue 8, pp. 1552 – 1556, August 2019.

  25. Surbhi Gupta, Gourab Das, Anand Sharma, Ravi Kumar Gangwar, and M. Khalily, “Wideband Circularly Polarized Dielectric Resonator Antenna Array with Polarization Diversity,” IEEE Access, Vol. 7, issue 1, pp. 49069-49076, December 2019.

  26. Sachin Kalraiya, Raghvendra Kumar Chaudhary, Ravi Kumar Gangwar, and, Mahmoud Abdelrahman Abdalla, “Polarization Independent Dual-Band Conformal Metamaterial Absorber for X- Band Microwave Application,” Electronics Letter, Volume 55, Issue 9, 02 May 2019, p. 546 – 548.

  27. Gourab Das, Anand Sharma, Ravi Kumar Gangwar and M. S. Sharawi, “Dielectric Resonator Based 4-Element 8-Port MIMO Antenna with Multi-directional Pattern Diversity”, IET Microwaves, Antennas & Propagation, vol. 13, issue 1, January 2019, pp 16-22.

  28. Tarun Prakash, R K Chaudhary, and Ravi Kumar Gangwar, “Pattern Reconfigurable Antenna in Azimuth Plane Using SP3T Reconfigurable Switching Network”, IET Microwaves, Antennas & Propagation, 15 (1), 62-68, January 2021.

  29. Yatendra Kumar, Ravi Kumar Gangwar & Binod Kumar Kanaujia, “Characterization of CP radiations in a Planar Monopole Antenna using Tuning Fork Fractal Slot for LTE Band13 / Wi-Max and Wi-Fi Applications,” IEEE Access, Vol. 8, pp. 127123-127133, July 2020.

  30. Reena Kumari, Ravi Kumar Gangwar & R K Chaudhary, “Investigation on Rotated Rectangular Slots to Improve the Circular Polarization in Cylindrical Dielectric Resonator Antenna,” IEEE Access, Vol. 9, pp. 97327-97336, June 2021.

  31. Kapil Gangwar, Anand Sharma, and Ravi Kumar Gangwar, “A conceptual design approach for Wideband Fractal Dielectric Resonator Antenna”, IET Microwaves, Antennas & Propagation, 14 (12), 1377-1383, June 2020.

  32. Anshul Gupta and Ravi Kumar Gangwar, “Dual-Band Circularly Polarized Aperture Coupled Rectangular Dielectric Resonator Antenna for Wireless Applications” IEEE Access, vol. 6, pp. 11388-11396, 2018.

  33. Anand Sharma, Gourab Das, and Ravi Kumar Gangwar, “Design and Analysis of Tri-Band Dual-Port Dielectric Resonator Based Hybrid Antenna for WLAN/WiMAX Applications”, IET Microwaves, Antennas & Propagation, vol. 12, issue 6, pp.986-992, 2018.

  34. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Dielectric Resonator Based Two Element MIMO Antenna System with Dual Band Characteristics”, IET Microwaves, Antennas & Propagation, vol. 12, issue 5, pp. 734-741, 2018.

  35. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Wideband Self Complementary Hybrid Ring Dielectric Resonator Antenna for MIMO Applications”, IET Microwaves, Antennas & Propagation, vol. 12, issue 1, pp. 108-114, 2018.

  36. Anand Sharma, Gourab Das, and Ravi Kumar Gangwar, “Composite Antenna for Ultrawide Bandwidth Applications”, IEEE Antennas & Propagation Magzine, Volume: 60, Issue: 3, June 2018, Pages 57-65.

  37. Anand Sharma, Gourab Das, Pinku Ranjan, Nikesh Kumar Sahu and Ravi Kumar Gangwar,“Novel Feeding Mechanism to Stimulate Triple Radiating Modes in Cylindrical Dielectric Resonator Antenna,” IEEE Access, Vol. 4, pp.9986-9992, 2016.

  38. Anand Sharma, Pinku Ranjan and Ravi Kumar Gangwar,“ Multiband cylindrical dielectric resonator antenna for WLAN/WiMAX application” Electronics Letters,2017, 53 (3), 132-134.

  39. Anand Sharma and Ravi Kumar Gangwar, “Circularly Polarized Hybrid Z-Shaped Cylindrical Dielectric Resonator Antenna for Multiband Applications”, IET Microwaves, Antennas & Propagation, Vol. 10, Issue 12, pp. 1259 - 1267 September 2016.

  40. Yatendra Kumar, Ravi Kumar Gangwar & Binod Kumar Kanaujia, “Multi-Band Different Polarized Monopole Antenna with Modified Ground for WLAN & Wi-MAX Applications,” International Journal of Electronics, Volume 36 Issue 8, Januray 2022.

  41. Nikesh Kumar Sahu, Gourab Das, and Ravi Kumar Gangwar, “Circularly Polarized Offset-Fed DRA Elements & their Application in Compact MIMO Antenna” Engineering Science and Technology, an International Journal, May 2021.

  42. Nikesh Kumar Sahu, Gourab Das, and Ravi Kumar Gangwar, “A Simple Conformal-Strip Fed Composite Antenna with Wideband & Enhanced Isolation for MIMO Applications” Journal of Electromagnetic Waves and Applications, November 2021.

  43. K. Gangwar, G. C. -Y. Chen, K. K. -M. Chan, R. K. Gangwar and K. Rambabu, "Antenna System for Communication in Underground Mining Environment to Ensure Miners Safety," IEEE Access, vol. 9, pp. 150162-150171, 2021, doi: 10.1109/ACCESS.2021.3125445.

  44. Gourab Das, Nikesh Kumar Sahu, and Ravi Kumar Gangwar, “Dielectric resonator-based multiport antenna system with multi-diversity and built-in decoupling mechanism,” AEU-International Journal of Electronics and Communications, Vol. 119, May 2020.

  45. Reena Kumari and Ravi Kumar Gangwar, and Raghvendra Kumar Chaudhary, “Sinusoidal-Shaped Aperture-Coupled Dual-Band Circularly Polarized Cylindrical Dielectric Resonator Antenna”, Microwave and Optical Technology Letters, May 2021.

  46. Sachin Kalraiya, Raghvendra Kumar Chaudhary, and Ravi Kumar Gangwar, “Polarization Independent Triple Band Ultrathin Conformal Metamaterial Absorber for C- and X-Frequency Bands” AEU-International Journal of Electronics and Communications, May 2021.

  47. Anand Sharma, Gourab Das, and Ravi Kumar Gangwar, “Triple Band Dual Sense Circularly Polarized Ceramic Based Antenna: Exploring Conceptual Design Methodology”, Progress In Electromagnetics Research C, Vol. 110, pp. 107 – 113, March 2021.

  48. Tripta Kumari, Gourab Das, and Ravi Kumar Gangwar, “Spatially Decoupled 8-Port Box Shaped MIMO DRA with Quad-Directional Pattern Diversity” Journal of Electromagnetic Waves and Applications, January 2021. (Accepted)

  49. P. Ranjan and R. K. Gangwar, "Investigation of Wideband Multi-Element Multi-Segment Half-Secto#0056b3 Cylindrical Dielectric Resonator Antenna for Wireless Applications," Progress In Electromagnetics Research C, Vol. 100, 31-43, 2020.

  50. Yatendra Kumar, Ravi Kumar Gangwar & Binod Kumar Kanaujia, “Asymmetrical mirror imaged monopole antenna with modified ground structure for DBDP radiations,” International Journal of Electronics, Volume 107, Issue 4, pp. 596-612, 2020.

  51. Tripta Kumari, Gourab Das, Ravi Kumar Gangwar, and Kundan Kumar Suman, “Dielectric Resonator based 2-port dual band Antenna for MIMO Applications” International Journal of RF and Microwave Computer-Aided Engineering, Volume 29, Issue 12, December 2019.

  52. Kapil Gangwar, Gourab Das, Anand Sharma, and Ravi Kumar Gangwar, “Investigation on Novel Wideband Fractal Antenna Design based on Cylindrical Shape Dielectric Resonator”, International Journal of RF and Microwave Computer-Aided Engineering, Volume 29, Issue 11, November 2019.

  53. Sachin Kalraiya, Mohammad Ameen, Raghvendra Kumar Chaudhary, and Ravi Kumar Gangwar, “Compact Ultrathin Conformal Metamaterial Dual Band Absorber for Curved Surfaces,” International Journal of RF and Microwave Computer-Aided Engineering, Volume 29, Issue 12, December 2019.

  54. Anand Sharma, D. Tripathi, Gourab Das, Ravi Kumar Gangwar and Pinku Ranjan, “Compact Dual Band Cylindrical Dielectric Resonator Antenna with Stimulation of Triple Radiating Mode and Diversified Polarization Characteristics”, International Journal of Electronics, Volume 107, Issue 4, pp. 46-59, 2020.

  55. Sachin Kalraiya, Raghvendra Kumar Chaudhary, Ravi Kumar Gangwar and, Mahmoud Abdelrahman Abdalla “Compact quad-band polarization-independent metamaterial absorber using circular/square metallic ring resonator” Materials Research Express, Volume 6, Issue 5, February 2019.

  56. Sachin Kalraiya, Raghvendra Kumar Chaudhary, Mahmoud Abdelrahman Abdalla and Ravi Kumar Gangwar, “Polarization and incident angle independent metasurface absorber for X-Band application” Materials Research Express, Volume 6, Issue 5, 2019.

  57. Surbhi Gupta, Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Dual-Band Circularly Polarized Antenna with Aid of Dual Cylindrical Dielectric Resonator Blocks,” International Journal of RF and Microwave Computer-Aided Engineering, Vol. 29, Issue 4, April 2019.

  58. Pinku Ranjan and Ravi Kumar Gangwar, “Probe feed Multi-element Multi-segment Triangular Dielectric Resonator Antenna with RCS Analysis”, Journal of Circuits, Systems, and Computers, Vol. 28, No. 12, pp. 1950208(1-18),2019.

  59. Anshul Gupta and Ravi Kumar Gangwar, “Hybrid Rectangular Dielectric Resonator Antenna For Multiband Applications” IETE Technical Review, Volume 37, Issue 1, pp. 83-90, Jan-February 2019.

  60. Debolina Sur Anand Sharma Ravi Kumar Gangwar and Nikesh Kumar Sahu, “A novel wideband Minkowski fractal antenna with assistance of triangular dielectric resonator elements,” International Journal of RF and Microwave Computer-Aided Engineering,Volume 29, Issue 2, February 2019.

  61. Reena Kumari and Ravi Kumar Gangwar, “Wideband Circularly Polarized Square Dielectric Resonator Antenna for WLAN/WiMAX Application,” International Journal of RF and Microwave Computer-Aided Engineering, Volume 29, Issue 2, February 2019.

  62. Tripta Kumari, Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Design Approach for Dual Element Hybrid MIMO Antenna Arrangement for Wideband Applications” International Journal of RF and Microwave Computer-Aided Engineering, Vol. 29, Issue 1, Januray 2019.

  63. Anand Sharma, D. Tripathi, Gourab Das, and Ravi Kumar Gangwar, “Novel Asymmetrical Swastik Shaped Aperture Coupled Cylindrical Dielectric Resonator Antenna with Dual-Band and Dual-Sense Circular Polarization Characteristics”, Microwave and Optical Technology Letters Volume 61, Issue 2, February 2019, Pages 405-411.

  64. Anshul Gupta and Ravi Kumar Gangwar, “New excitation scheme to excite higher-order radiating modes in rectangular dielectric resonator antenna for microwave applications” Journal of Microwave Power and Electromagnetic Energy, Volume 52, Issue 3, pp. 240-251, 2018.

  65. Reena Kumari and Ravi Kumar Gangwar, “Circularly polarized slot‐coupled square dielectric resonator antenna for WLAN applications”, Microwave and Optical Technology Letters, Volume 60, Issue 11, November 2018, Pages 2787-2794.

  66. A. Iqbal, A. Bouazizi, O. A. Saraereh, A. Basir, and R. K. Gangwar, "Design of Multiple Band, Meande#0056b3 Strips Connected Patch Antenna," Progress In Electromagnetics Research Letters, Vol. 79, 51-57, 2018.

  67. Nikesh Kumar Sahu, Gourab Das and Ravi Kumar Gangwar, “Dielectric Resonator Based Wide Band Circularly Polarized MIMO Antenna with Pattern Diversity for WLAN Applications”, Microwave and Optical Technology Letters Volume 60, Issue 12, December 2018, Pages 2855-2862.

  68. P. Ranjan, R. K. Gangwar, A. P. Singh, and A. Varshney, “Investigation of Wideband Two Elements Dual Segment Half-Cylindrical Dielectric Resonator Antenna (DS h -CDRA) with RCS Analysis” In Electromagnetics Research C, Vol. 85, 235-246, 2018.

  69. Gourab Das, Anand Sharma, Ravi Kumar Gangwar and M. S. Sharawi, “Compact Back to Back DRA Based Four Port MIMO Antenna System with Bi-directional Diversity”, Electronics Letters, Volume 54, Issue 14, 12 July 2018, p. 884 – 886.

  70. Reena Kumari and Ravi Kumar Gangwar, “Circularly Polarized Rectangular Dielectric Resonator Antenna fed by a Flag shape Microstrip Line for Wideband Applications”, Microwave and Optical Technology Letters, Volume 60, Issue 10, October 2018, Pages 2577-2584.

  71. Nikesh Kumar Sahu, Gourab Das and Ravi Kumar Gangwar, “L-Shaped Dielectric Resonator Based Circularly Polarized multi-input-multi-output (MIMO Antenna for Wireless Local Area Network (WLAN) Applications”, International Journal of RF and Microwave Computer-Aided Engineering, vol. 28, issue 9, November 2018.

  72. Nikesh Kumar Sahu, Anand Sharma and Ravi Kumar Gangwar, “Design and Analysis of Wideband Composite Antenna with Dual-Sense Circular Polarization Characteristics”, Microwave and Optical Technology Letters, Volume 60, Issue 8, August 2018, Pages 2048-2054.

  73. Piyuesh Okas, Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Elliptical Slot Loaded Partially Segmented Circular Monopole Antenna for Super Wideband Application,” AEU-International Journal of Electronics and Communications, Vol. 88, pp. 63-69, May 2018.

  74. Yatendra Kumar, Ravi Kumar Gangwar and B. K. Kanaujia, “Compact Broadband Circularly Polarized Hook-shaped Microstrip Antenna with DGS Plane” International Journal of RF and Microwave Computer-Aided Engineering, August 2018, Vol. 28, Issue 6.

  75. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Triple-band hybrid antenna with integral isolation mechanism for MIMO applications”, Microwave and Optical Technology Letters, Volume 60, Issue 6, pp 1482-1491, June 2018.

  76. Gourab Das, Anand Sharma, Ravi Kumar Gangwar, and M. S. Sharawi “Triple-Port, Two-Mode Based Two Element Cylindrical Dielectric Resonator Antenna for MIMO Applications”, Microwave and Optical Technology Letters, Vol. 60, issue 6, June 2018, Pages 1566–1573.

  77. Yatendra Kumar, Ravi Kumar Gangwar and B. K. Kanaujia, “Broadband Circularly Polarized Dipole Look-Like F-Shaped Antenna With Symmetrically Inverted F-Shaped Modified Ground Plane” Microwave and Optical Technology Letters, Vol. 60, issue 5, May 2018, Pages 1100–1108.

  78. Reena Kumari and Ravi Kumar Gangwar, “Circularly Polarized Rectangular Dielectric Resonator Antenna Fed By A Cross Aperture Coupled Spiral Microstrip Line,” International Journal of RF and Microwave Computer-Aided Engineering, Vol. 28, issue 2, February 2018.

  79. Piyuesh Okas, Anand Sharma, and Ravi Kumar Gangwar, “Super-Wideband CPW Fed Modified Square Monopole Antenna with Stabilized Radiation Characteristics,” Microwave and Optical Technology Letters, Volume 60, Issue 3, Pages 568-575, March 2018.

  80. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Dielectric Resonator based Circularly Polarized MIMO Antenna with Polarization Diversity,” Microwave and Optical Technology Letters, Volume 60, Issue 3, Pages 685-693, March 2018.

  81. Nikesh Kumar Sahu, Anand Sharma and Ravi Kumar Gangwar, “Dual Polarized Triple-Band Dielectric Resonator based Hybrid MIMO Antenna For WLAN/WiMAX Application,” Microwave and Optical Technology Letters, Volume 60, Issue 4, April 2018, Pages 1033-1041.

  82. Anshul Gupta and Ravi Kumar Gangwar, “Dielectric Resonator Antenna Array For X-Band And Microwave Imaging Applications”, Microwave and Optical Technology Letters, Volume 60, Issue 4, Pages 960-965, April 2018.

  83. Pinku Ranjan and Ravi Kumar Gangwar, “Two Element Half Split Cylindrical Dielectric Resonator Antenna for Wireless Applications” Wireless Personal Communications, Volume 96, Issue 1, Pages 895–907, September 2017.

  84. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Dual-Band Circularly Polarized Hybrid Antenna for WLAN/WiMAX Applications,” Microwave and Optical Technology Letters, Volume 59, Issue 10, October 2017, Pages 2450–2457.

  85. Reena Kumari and Ravi Kumar Gangwar, “Circularly Polarized Cylindrical Dielectric Resonator Antenna excited by square ring slot with a T-shaped microstrip line,” Microwave and Optical Technology Letters, Volume 59, Issue 10, October 2017, Pages 2507–2514.

  86. Anshul Gupta and Ravi Kumar Gangwar. "Theoretical and Experimental Investigations on Rectangular Dielectric Resonator Antenna Array for Radar and Satellite Application." Electromagnetics, vol. 37, pp. 27-39, 2017.

  87. Piyuesh Okas, Anand Sharma, and Ravi Kumar Gangwar, “Circular Base Loaded Modified Rectangular Monopole Radiator for Super Wideband Application,” Microwave and Optical Technology Letters, Volume 59, Issue 10, October 2017, Pages 2421–2428.

  88. Nikesh Kumar Sahu, Anand Sharma and Ravi Kumar Gangwar, “Dual-Sense Dual-Polarized Hybrid Rectangular Dielectric Resonator Antenna For Multiband Applications,” Progress in Electromegnetic Research C, Vol. 74, 161-170, 2017.

  89. Anand Sharma, and Ravi Kumar Gangwar, “Tri-Band Composite Cylindrical Dielectric Resonator Antenna with Hybrid Mode Excitation and Cross-Polarization Suppression,” International Journal of RF and Microwave Computer-Aided Engineering, Volume 27, Issue 8, October 2017.

  90. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Dual-Band Circularly Polarized Modified Circular Aperture Loaded Cylindrical Dielectric Resonator Antenna for Wireless Applications,” Microwave and Optical Technology Letters, 59 (7), 1562-1570.

  91. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Dual Feed MIMO Cylindrical Dielectric Resonator Antenna with High Isolation,” Microwave and Optical Technology Letters, 59 (7), 1686-1692.

  92. Gourab Das, Anand Sharma, and Ravi Kumar Gangwar, “Dual Port Aperture Coupled MIMO Cylindrical Dielectric Resonator Antenna with High Isolation for WiMAX Application”, International Journal of RF and Microwave Computer-Aided Engineering, Vol. 27, Issue 7, June 2017.

  93. Anand Sharma, Gourab Das, and Ravi Kumar Gangwar, “Dual‐band dual‐polarized hybrid aperture‐cylindrical dielectric resonator antenna for wireless applications”, International Journal of RF and Microwave Computer-Aided Engineering, Vol. 27, Issue 25, March 2017.

  94. Nikesh Kumar Sahu, Anand Sharma and Ravi Kumar Gangwar, “Modified Annular Ring Patch Fed Cylindrical Dielectric Resonator Antenna for WLAN/WiMAX Applications,” Microwave and Optical Technology Letters, Volume 59, Issue 1, January 2017, Pages 120–125.

  95. Reena Kumari and Ravi Kumar Gangwar" Circularly Polarized Cylindrical Dielectric Resonator Antenna Excited by Dual Conformal Strips alongwith Modified Wilkinson Power Divider for High Gain Application,” Microwave and Optical Technology Letters, Vol. 59, Issue 4, April 2017, pp. 908-913.

  96. Pinku Ranjan and Ravi Kumar Gangwar, “Quarter Cylindrical Dielectric Resonator Antenna in Multi-element composite form for Wideband Applications” International Journal of Microwave and Wireless Technology, Volume 9, Issue 3, March 2017, pp. 639-647.

  97. Ravi Kumar Gangwar, Pinku Ranjan and Abhishek Aigel, “Wideband Four Element Two Segment Triangular Dielectric Resonator Antenna with Monopole-Like Radiation” International Journal of Microwave and Wireless Technology, Volume 9, Issue 2, March 2017, pp. 411-418.

  98. Anand Sharma and Ravi Kumar Gangwar,“Triple-Band Dual-Polarized Hybrid Cylindrical Dielectric Resonator Antenna With Hybrid Modes Excitation” Progress In Electromagnetic Research C, Vol. 67, page 97-105, 2016.

  99. Ravi Kumar Gangwar, Anand Sharma, Mohit Gupta and Shailja Chaudhary , “Hybrid Cylindrical Dielectric Resonator Antenna with HE11δ and HE12δ mode Excitation for Wireless Applications”, International Journal of RF and Microwave Computer-Aided Engineering, August 2016, 26(9), 812-818.

  100. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Dual Polarized Triple Band Hybrid MIMO Cylindrical Dielectric Resonator Antenna for LTE2500/WLAN/WiMAX Applications”, International Journal of RF and Microwave Computer-Aided Engineering, Vol. 26, Issue 9, Nov. 2016, pp. 763-772.

  101. Pinku Ranjan and Ravi Kumar Gangwar, “Experimental and Simulation Investigation of Tri-sector Cylindrical Dielectric Resonator Antenna in composite forms for Wireless Applications” Frequenz, Volume 70, Issue 11-12, Pages 527–537, August 2016.

  102. Pinku Ranjan and Ravi Kumar Gangwar, “Segmented Quarter Cylindrical Dielectric Resonator Antenna: Simulation and experimental investigation in composite form for Wideband Applications” International Journal of Microwave and Wireless Technology, June 2016, 9 (4), 881-890.

  103. A.K. Singh, Ravi Kumar Gangwar and B.K. Kanaujia, “Circularly Polarized Annular Ring Microstrip Antenna for High Gain Application”, Taylor and Francis, Electromagnetics, Vol. 36, No. 06, pp 379-391, August 2016.

  104. Anand Sharma and Ravi Kumar Gangwar, “Compact Dual-Band Ring Dielectric Resonator Antenna with Moon Shaped Defected Ground Structure for WiMAX/WLAN Applications”, International Journal of RF and Microwave Computer-Aided Engineering, March 2016, 26(6), 503-511.

  105. Anshul Gupta and Ravi Kumar Gangwar, “Design, Fabrication and Measurement of Dual Segment Rectangular Dielectric Resonator Antenna Array Excited with Conformal Strip for S-band Application”, Taylor and Francis, Electromagnetics. Vol. 36, No. 4, pp 236-248, 2016.

  106. A.K. Singh, Ravi Kumar Gangwar and B.K. Kanaujia, “Secto#0056b3 Annular Ring Microstrip Antenna with DGS for Circular Polarization” Microwave and Optical Technology Letters, Vol. 58, issue 03, pp 569-573, March 2016.

  107. Anand Sharma and Ravi Kumar Gangwar, “Compact Quad-Band Cylindrical Dielectric Resonator Antenna with Complementary C-Shaped Defected Ground Structure”, Microwave and Optical Technology Letters, Vol. 58, issue 03, pp 611-615, March 2016.

  108. Anand Sharma and Ravi Kumar Gangwar, “Hybrid two segments ring dielectric resonator antenna for ultrawideband application”, International Journal of RF and Microwave Computer-Aided Engineering, Vol. 26, issue 1, pages 47–53, January 2016.

  109. Anand Sharma and Ravi Kumar Gangwar, “Compact triband cylindrical dielectric resonator antenna with circular slots for wireless application”, Journal of Electromagnetic Waves and Applications, Vol. 30, Issue 6, pp. 331-340, 2016.

  110. Pinku Ranjan and Ravi Kumar Gangwar, “Probe feed half split Cylindrical Dielectric Resonator Antenna for Wideband Application” AEU-International Journal of Electronics and Communications, Vol. 69, Issue 11, pp. 1709-1714, November 2015.

  111. Reena Kumari and Ravi Kumar Gangwar" Circular Polarized Dielectric Resonator Antenna: Design and Developments,” Wireless Personal Communications, Volume 86, Issue 2, pp 851-886, January 2016.

  112. Anand Sharma and Ravi Kumar Gangwar, “Triple Band Two-Segment Cylindrical Dielectric Resonator Antenna with a Novel Microstrip Feed for WLAN/WiMAX Applications”, Microwave and Optical Technology Letters, Vol. 57, issue 11, pp 2649-2655, November 2015.

  113. A.K. Singh, Ravi Kumar Gangwar and B.K. Kanaujia, “Orthogonal slot-loaded coaxially stacked annular ring antenna with circular patch for multiband application”, Journal of Electromagnetic Waves and Applications, 2015. Vol. 29, Issue 12, pp. 1630-1643, 2015.

  114. Ravi Kumar Ganwgar, Pinku Ranjan and Abhishek Aigel, “Four Element Triangular Dielectric Resonator Antenna for Wireless Application” International Journal of Microwave and Wireless Technology,Vol. 9, Issue 1, pp. 113-119, Feb. 2017.

  115. A.K. Singh, Ravi Kumar Gangwar and B.K. Kanaujia, "Wideband and Compact Slot Loaded Annular Ring Microstrip Antenna using L-Probe Proximity-Feed for Wireless Communications,” International Journal of Microwave and Wireless Technology, Vol. 8, Issue 7, pp. 1085-1093, Novenmber 2016.

  116. A.K. Singh, Ravi Kumar Gangwar, B.K. Kanaujia and Abhishek Sharma, " Design and Analysis of Cavity Backed Annular Ring Microstrip Antenna for Personal Wireless Communication,” Wireless Personal Communications, vol. 83, issue 4, pp. 2647-2656, 2015.

  117. Ravi Kumar Gangwar, S.P. Singh and D. Kumar, “A Modified Fractal Rectangular Curve Dielectric Resonator Antenna Terminated in a Bio-medium,” International Journal of Signal and Imaging System Engineering, Vol. 7, No. 1, pp.43–51, 2014.

  118. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “A New Four Element Wideband Rectangular Dielectric Resonator Antenna Array Terminated in a Bio-medium,” Springer Wireless Personal Communications, Vol. 73, Issue 3, pp. 663–677, May 2013.

  119. Ravi Kumar Gangwar, S. P. Singh, Meenakshi Choudhary and D. Kumar, “LTCC Glass Ceramic based Dual Segment Cylindrical Dielectric Resonator Antenna,” Journal of Ceramic, Vol. 2013, pp.1-8, 2013.

  120. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “Cylindrical dielectric resonator antenna Terminated in a Bio-medium,” Springer Wireless Personal Communications, Vol. 72, Issue 2, pp. 843–855, May 2013.

  121. Anshul Gupta, Ravi Kumar Gangwar and S. P. Singh, “Three element dual segment triangular dielectric resonator antenna for X-band application,” Progress In Electromagnetic Research C, Vol. 34, pp.139-150, 2013.

  122. Saba Shahin, Vineet Prakash Singh, R. K. Shukla, A. Dhawan, Ravi Kumar Gangwar, S.P. Singh and C.M. Chaturvedi “ 2.45 GHz Microwave Irradiation- Induced oxidative Stress affects implementation or pregnancy in Male Mice, Mus musculus,” Applied Biochemistry and Biotechnology, January 2013.

  123. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “SAR distribution in a bio-medium in close proximity with dual segment cylindrical dielectric resonator antenna,” Journal of Medical Engineering and Technology, Vol. 36, No. 4 , Pages 199-204, May 2012.

  124. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “SAR distribution in a bio-medium in close proximity with dual segment rectangular dielectric resonator antenna,” International Journal of Microwave and Optical Technology, Vol.7, no. 1, pp. 26-34, 2012.

  125. Ravi Kumar Gangwar, S. P. Singh, Meenakshi Choudhary, Nitish Kumar Singh and D. Kumar, “Microwave Dielectric Properties of (Zn1-xMgx)TiO3 (ZMT) Ceramics for Dielectric Resonator Antenna Application,” Journal of Alloy and Compounds, Vol. 509, issue 42, pp. 10195-10202, 2011.

  126. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “SAR distribution in a bio-medium in close proximity with rectangular dielectric resonator antenna,” Progress in Electromagnetic Research B, Vol. 31, pp. 157-173, 2011.

  127. Ravi Kumar Gangwar, S.P. Singh and D. Kumar, “Modified dual segment Rectangular Dielectric Resonator Antenna Terminated in a Bio-medium” International Journal of Communication, Network and Systems, vol. 4, pp. 377-383, 2011.

  128. Vineet Prakash Singh, Priyanka Singh, C.M. Chaturvedi, R. K.Shukla, A. Dhawan, Ravi Kumar Gangwar and S.P. Singh, “ 2.45 GHz Low CW Microwave Irradiation Alters Circadian organization , spatial memory, DNA structure in Brain Cells and Blood counts of Male Mice, Mus musculus,” Progress in Electromagnetic Research B, Vol. 29, pp. 23-42, 2011.

  129. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “Wideband dual segment Cylindrical Dielectric Resonator Antenna Terminated in a Bio-medium,” IEEE Microwave Review, Vol. 16, No. 2, pp. 14-21, December 2010.

  130. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “A Modified Fractal Rectangular Curve Dielectric Resonator Antenna for WiMAX Application,” Progress in Electromagnetic Research C, Vol. 12, 37-51, 2010.

  131. Ravi Kumar Gangwar, S. P. Singh, Meenakshi Choudhary, Nitish Kumar Singh, D. Kumar and Om Prakash, “Study of Dielectric Constant of (1-x) Zn.xMg.TiO3 (ZMT) Ceramic Material at Microwave Frequencies as a Function of Composition x and Processing Temperature,” Journal of Electromagnetic Analysis and Application, Vol. 2, pp. 664-671, 2010.

  132. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “Comparative Studies of Rectangular Dielectric Resonator Antenna with Probe and Microstrip line Feeds,” Archives of Applied Science Research, Vol. 2(3), 1-10, 2010.


International/ National Symposium/ Conference


  1. Karthik Gugulothu,Amit Kr. Pandey, Akash Deep Singh, Kundan Kumar Suman,and Ravi Kumar Gangwar, “High Gain Wideband 2×8 SIW-Based Antenna Array for Futuristic 6G Applications at W-Band,” 2024 IEEE Space, Aerospace and Defence Conference (SPACE), Sheraton Grand Bengaluru Whitefield Hotel & Convention Center, Bangalore, India, July 22-24, 2024. (Accepted)

  2. Kundan Kumar Suman, Ravi Kumar Gangwar, Tripta Kumari and Veer Singh Gangwar, “High-Gain SIW Antenna with Ridge Gap Waveguide Feed for W-Band Applications,” 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), The Forum Celebration Centre and Wyndham Hotel, Ahmedabad, 10-14 December 2023. (Accepted)

  3. Sanghmitra, Ravi Kumar Gangwar, and R K Chaudhary, “Circularly Polarized Perturbated Dielectric Resonator MIMO Antenna Coupled with sectored Ring-shape Feeding for mmWave Applications,” 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), The Forum Celebration Centre and Wyndham Hotel, Ahmedabad, 10-14 December 2023. (Accepted)

  4. Divyanshi, Tripta Kumari, and Ravi Kumar Gangwar, “Compact Circularly Polarized Conformal Square -Ring Slot Based Antenna for Reliable Vehicular Connectivity,” 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), The Forum Celebration Centre and Wyndham Hotel, Ahmedabad, 10-14 December 2023. (Accepted)

  5. Milind Yadav, Sachin Maithani, Vivek Sangwan, and Ravi Kumar Gangwar, “Dual-Band Full-Duplex Compact Antenna for DSRC and V2V Application,” 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), The Forum Celebration Centre and Wyndham Hotel, Ahmedabad, 10-14 December 2023. (Accepted)

  6. Aks Raj, Ravi Kumar Gangwar, and R K Chaudhary “A Conformal Wideband Metamaterial Absorber Integrated with Chip Resistor for Microwave Shielding in C and X band Applications,” 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), The Forum Celebration Centre and Wyndham Hotel, Ahmedabad, 10-14 December 2023. (Accepted)

  7. Manish Kumar Rauniyar, Kundan Kumar Suman, and Ravi Kumar Gangwar, “Design and Performance Evaluation of a Wideband Conformal AVA on a Dielectric Cylinder for Airborne Applications,” 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), The Forum Celebration Centre and Wyndham Hotel, Ahmedabad, 10-14 December 2023. (Accepted)

  8. Tripta Kumari, Ravi Kumar Gangwar, and and R K Chaudhary, “Intrinsic Isolation in SIW-based MIMO Antenna for 5G mmWave Applications,” 2023 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), The Forum Celebration Centre and Wyndham Hotel, Ahmedabad, 10-14 December 2023. (Accepted)

  9. Kundan Kumar Suman, Ravi Kumar Gangwar, Veer Singh Gangwar. And A K Singh, “Dual Band Antenna Array for Concurrent Sha#0056b3 Aperture Operation,” 2022 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), Hotel Leela Bhartiya, Banglore, 12-15 December 2022.

  10. Amit Kumar Pandey, Nikesh Kr. Sahu, Ravi Kumar Gangwar and Raghvendra Kumar Chaudhary, “A Triple-Band mm-Wave SIW Antenna for 5G Applications,” 2022 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), Hotel Leela Bhartiya, Banglore, 12-15 December 2022.

  11. Manish Kumar Rauniyar, Kundan Kumar Suman, Nikesh Kr. Sahu. and Ravi Kumar Gangwar, “Compact Triple Band Circularly Polarized Dielectric Resonator Antenna for Positioning and Navigational Application,” 2022 IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), Hotel Leela Bhartiya, Banglore, 12-15 December 2022.

  12. Ravi Kumar Agrahari, Rahul Singh, Kundan Kumar Suman, and Ravi Kumar Gangwar, “Broadband Conformal frequency independent Antenna for Airborne Applications,” URSI Regional conference Radio Science (URSI-RCRS 2022), IIT Indore, 01-04 December 2022.

  13. Poonam Kumari, Ravi Kumar Gangwar, and Raghvendra Kumar Chaudhary, “A Two-Step Stair Shaped Dielectric Resonator Antenna with AMC for UWB Applications,” URSI Regional conference Radio Science (URSI-RCRS 2022), IIT Indore, 01-04 December 2022.

  14. Virendra Kumar, Shreeshail ., Srinivas D, Pramod Kumar, K Sreenivasulu, Beenamole KS and Ravi Kumar Gangwar, “Demonstration of X-Band Wideband Scanning Using Hybrid Beam Steering Components”, 2022 IEEE International Symposium on Phased Array Systems & Technology (PAST), 11–14 October 2022, The Westin Waltham Boston, Waltham, Massachusetts, USA

  15. Virendra Kumar, Shreeshail ., Srinivas D, Pramod Kumar, K Sreenivasulu, Beenamole KS and Ravi Kumar Gangwar, “High-Performance S-Band Dual Transmit/Receive Module for Active Phased Array Radar”, 2022 IEEE International Symposium on Phased Array Systems & Technology (PAST), 11–14 October 2022, The Westin Waltham Boston, Waltham, Massachusetts, USA.

  16. T. Kumari, K. K. Suman, P. Kumari, R. K. Gangwar and R. K. Chaudhary, "DR Based Compact MIMO Antenna with Resistor-loaded DGS," 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), 2022, pp. 1180-1181.

  17. P. Kumari, T. Kumari, K. K. Suman, R. K. Gangwar and R. K. Chaudhary, "A Circularly Polarized Sub-6 GHz MIMO Antenna for 5G Applications," 2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI), 2022, pp. 1186-1187.

  18. K. K. Suman, P. Ashwin, R. K. Gangwar and V. S. Gangwar, "Dual-Band Sha#0056b3-Aperture Antenna Array for High Gain Applications," 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2021, pp. 1-4, doi: 10.23919/URSIGASS51995.2021.9560601

  19. V. Kumar, Shreeshail, U. S. Pandey, K. S. Beenamole and R. K. Gangwar, "Low-Cost Hybrid Beamforming Network for 2-D Multi-Beams in Active Phased Array Antenna," 2021 XXXIVth General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2021, pp. 1-4, doi: 10.23919/URSIGASS51995.2021.9560328.

  20. Jayshri Kulkarni Swapnita Dhabre, Shailesh Kulkarni, Chow-Yen Desmond Sim, Ravi Kumar Gangwar, and Korhan Cengiz, Six-Port Symmetrical CPW-Fed MIMO Antenna for futuristic Smartphone Devices”, 2021 6th International Conference for Convergence in Technology (I2CT) Pune, India. Apr 02-04, 2021.

  21. Tarun Prakash, R K Chaudhary, and Ravi Kumar Gangwar, “Quad-Beam Octa Cross-Slotted Pattern Reconfigurable Antenna for 5.8 GHz Band Application”, 2020 50th European Microwave Conference (EuMC), January 2021.

  22. Kapil Gangwar, Jérôme Tissier, Ravi K. Gangwar, “Dielectric resonator based rectenna for multi-band RF harvesting applications” 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting (APS-URSI 2020), July 6-11,2020 Canada.

  23. Yatendra Kumar, Ravi Kumar Gangwar, Binod Kumar Kanaujia, “Circularly Polarized Monopole Antenna with Modified Ground structure”, 2020 URSI Regional Conference on Radio Science (URSI-RCRS), February 10-12,2020, IIT(BHU) Varanasi.

  24. J. K. Modi , K. K. Suman , R. K. Gangwar and V. S. Gangwar, "Investigation on Realistic Synthesis Approach for Shaped Beam Patterns and its validation through EM Simulation study" International Conference on Electronics, Computing and Communication Technologies, (CONECCT 2020), July 2-4,2020 Bangalore , India.

  25. K. K. Suman, A. Kumar R, J. K. Modi , R. K. Gangwar, and V. S. Gangwar, "Novel Synthesis of Sha#0056b3 Aperture Antenna Array Exploiting Concurrently Serving Radiators for Individual Functionality" International Conference on Electronics, Computing and Communication Technologies, (CONECCT 2020), July 2-4,2020 Bangalore , India.

  26. Vasudeva #0056b3dy Rami#0056b3dy, Mohammad Ameen, Raghvendra Kumar Chaudhary and Ravi Kumar Gangwar, “Compact Wideband Circularly Polarized Rectangular DRA with Right Angled Conformal Strip Feed” 2nd Indian Conference on Antennas & Propagation (InCAP2019), December 19-22, 2019 | Ahmedabad, India

  27. Virendra Kumar, Ravi Kumar Gangwar and Sreejith. C A., “Design Investigation of Leaky Coaxial Cable as Coupler for Active Phased Array Calibration” 2nd Indian Conference on Antennas & Propagation (InCAP2019), December 19-22, 2019 | Ahmedabad, India.

  28. Anshul Gupta and Ravi Kumar Gangwar, “Dual Segment Dielectric Resonator Antenna for Microwave Applications” 2019 4th International Conference on Computing, Communications and Security (ICCCS-2019), Rome, Italy, 10-12 October, 2019.

  29. Nikesh Kumar Sahu, Gourab Das and Ravi Kumar Gangwar, “Dielectric Resonator Based MIMO Antenna with circular polarization diversity for WiMAX Applications” Progress in Electromegnetic Research Symposium, Faculty of Engineering of the University of Rome "La Sapienza" Rome, Italy, 17-20 June, 2019.

  30. Gourab Das, Nikesh Kumar Sahu, Anand Sharma and Ravi Kumar Gangwar, “Dual Band four element MIMO Dielectric Resonator Antenna for WLAN/WiMAX Applications” Progress in Electromegnetic Research Symposium, Faculty of Engineering of the University of Rome "La Sapienza" Rome, Italy, 17-20 June, 2019.

  31. J. K. Modi, R. K. Gangwar, P. Ashwin and V. S. Gangwar, "An Efficious Strategy for the Synthesis of Large Arrays Thinning with Low PSLL," 2019 International Conference on Wireless Communications Signal Processing and Networking (WiSPNET), 21-23 March 2019, Chennai, India, 2019, pp. 41-43.

  32. Yatendra Kumar, Ravi Kumar Gangwar and B. K. Kanaujia, “Circularly Polarized inverted F-Shaped Antenna with asymmetrically F-Shape slotted Modified Ground Plane”, IEEE-INAE Workshop on Electromagnetics 2018 (IIWE 2018), December 6-8, 2018, Mascot Hotel, Trivandrum.

  33. Sachin Kalraiya, Mohammad Ameen, Raghvendra Kumar Chaudhary and Ravi Kumar Gangwar, “Compact Dual Band Ultra-thin Conformal Absorber for C-band Application”, IEEE-INAE Workshop on Electromagnetics 2018 (IIWE 2018), December 6-8’2018, Mascot Hotel, Trivandrum.

  34. Tripta Kumari, Gourab Das, Ravi Kumar Gangwar and Kundan Kumar Suman, “Dielectric Resonator based 2-port dual band Antenna for MIMO Applications”, IEEE-INAE Workshop on Electromagnetics 2018 (IIWE 2018), December 6-8’2018, Mascot Hotel, Trivandrum.

  35. Gourab Das, Nikesh Sahu and Ravi Kumar Gangwar, “Pattern Diversity Based Double Sided Dielectric Resonator Antenna for MIMO Applications” IEEE Indian Conference on Antenna and Propagation (InCAP 2018), Hyderabad, India, 16-19 December, 2018.

  36. Juhi Kumari Modi, Ravi Kumar Gangwar, Ashwin. P, V. S. Gangwar, A. K. Singh and S. P. Singh, “Investigation on Novel Synthesis Approach for Thinned Planar Arrays Employing Modified GA Optimizer”,IEEE Internatioinal Microwabe and RF conference (IMaRC 2018), 28-30 November 2018, Kolkata.

  37. Sachin Kalraiya, Mohammad Ameen, Raghvendra Kumar Chaudhary and Ravi Kumar Gangwar, “Polarization Independent Conformal Metamaterial Absorber using Modified Resonators for Dual Band Applications”,IEEE Internatioinal Microwabe and RF conference (IMaRC 2018), 28-30 November 2018, Kolkata.

  38. Rishi Kashyap, Verandra Kumar, Ravi Kumar Gangwar, Prashant Vasistha and Ravindra Kumar, “RCS Analysis of scaled down chaff clouds using Ansys ED (HFSS) to understand the behaviour of real time model”, IEEE Internatioinal Microwabe and RF conference (IMaRC 2018), 28-30 November 2018, Kolkata.

  39. Ravi Kumar Gangwar, Anand Sharma, Gourab Das, Abhishek Kumar Sukhija and G.S. #0056b3dy, “Dual-Mode Dual-Band Modified Slot Coupled Cylindrical Dielectric Resonator Antenna” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  40. Surbhi Gupta, Anand Sharma and Ravi Kumar Gangwar, “Dual-Mode Slot Coupled Ring Dielectric Resonator Antenna with Diversified Radiation Characteristics” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  41. Gourab Das and Ravi Kumar Gangwar, “A High Isolation MIMO Cylindrical Dielectric Resonator Antenna for 4G Applications” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  42. Tripta Kumari, Gourab Das and Ravi Kumar Gangwar, “Wideband Multi-segment Dielectric Resonator Antenna for MIMO Applications” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  43. Virendra Kumar, U.S. Pandey, Sreenivasulu K. and Ravi Kumar Gangwar, “Estimation of Pattern Degradation Due to Mutual Coupling and Edge effect in Finite Array” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  44. Nikesh Kumar Sahu, Ravi Kumar Gangwar and Poonam Kumari, “Dielectric Resonator Based Circularly Polarized MIMO Antenna for WLAN Applications” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  45. Anshul Gupta and Ravi Kumar Gangwar, “Compact Two-Element Cylindrical Dielectric Resonator Antenna Array for Quad-Band Applications” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  46. K Yetish #0056b3dy, Bharath Kumar R, Jijenth M, V S Gangwar, K K Suman, and R K Gangwar, “An Expeditious Synthesis of Thinned Planar Antenna Array by Exploitation of Multi-Objective Optimization Technique” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  47. Kundan Kumar Suman,Ashwin P,Allen V Miranda, V S Gangwar , R K Gangwar, “An Optimization Technique Utilizing Genetic Algorithm for the Synthesis of Large Thinned Planar Antenna Array with Low Peak Side Lobe Level” 3rd International Conference on Microwave and Photonics, IIT(ISM) Dhanbad, India, 09-11 February, 2018.

  48. Gourab Das, Nikesh Kumar Sahu, Anand Sharma and Ravi Kumar Gangwar, “Wideband MIMO Hybrid Cylindrical Dielectric Resonator Antenna with Improved Diversity Performanc” 2017 IEEE Conference on Antenna Measurements & Applications (CAMA), AIST,Ibaraki, Tsukuba, Japan, 04-06 December, 2017.

  49. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Design of a Dual-Polarized Triple-Band Hybrid MIMO Antenna for WLAN/WiMAX Applications” 2017 IEEE Conference on Antenna Measurements & Applications (CAMA), AIST.Ibaraki, Tsukuba, Japan, 04-06 December, 2017.

  50. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Tri-Band Ring Dielectric Resonator Based Integrated Antenna for WLAN/WiMAX Applications” 2017 IEEE Conference on Antenna Measurements & Applications (CAMA), AIST.Ibaraki, Tsukuba, Japan, 04-06 December, 2017.

  51. Reena Kumari and Ravi Kumar Gangwar, “Dual Conformal Strip fed Cylindrical Dielectric Resonator Antenna for Circular Polarization” 2017 IEEE Conference on Antenna Measurements & Applications (CAMA), AIST.Ibaraki, Tsukuba, Japan, 04-06 December, 2017.

  52. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Dual-band Dual-polarized Hybrid Cylindrical Dielectric Resonator Antenna for Wireless Applications” 38th Progress In Electromagnetics Research Symposium, St. Petersburg, Russia, 21-25 May, 2017

  53. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “A Single Cylindrical Dielectric Resonator Based MIMO Antenna System for WiMAX Applications” 38th Progress In Electromagnetics Research Symposium, St. Petersburg, Russia, 21-25 May, 2017

  54. Pinku Ranjan, Anand Sharma and Ravi Kumar Gangwar, “Experimental Investigation on Probe Feed Equilateral Triangular Dielectric Resonator Antenna for 5.8 GHz ISM Band (IEEE 802.11)” 38th Progress In Electromagnetics Research Symposium, St. Petersburg, Russia, 21-25 May, 2017

  55. Reena Kumari and Ravi Kumar Gangwar, “Circularly Polarized Rectangular Dielectric Resonator Antenna Fed by Rectangular Patch Microstrip Line” 10th Annual International Conference ATMS – 2017, held at Hydrabad, India, 7-8 February, 2016, pp 113-116.

  56. Anand Sharma, Pinku Ranjan and Ravi Kumar Gangwar, “Dual band dual polarized hexagon shaped aperture coupled hybrid cylindrical dielectric resonator antenna for WLAN/WiMAX applications,” 10th Annual International Conference ATMS – 2017, held at Hydrabad, India, 7-8 February, 2016, pp 226-228.

  57. Gourab Das, Pinku Ranjan, Anand Sharma and Ravi Kumar Gangwar, “A Dual port MIMO cylindrical dielectric resonator antenna for ISM band applications,” 10th Annual International Conference ATMS – 2017, held at Hydrabad, India, 7-8 February, 2016, pp 186-189.

  58. Pinku Ranjan and Ravi Kumar Gangwar, “Tri sector cylindrical dielectric resonator antenna with multi-segment approach for bandwidth enhancement,” 10th Annual International Conference ATMS – 2017, held at Hydrabad, India, 7-8 February, 2016, pp 175-178.

  59. Anand Sharma and Ravi Kumar Gangwar, “Asymmetrical Annular Shape Microstrip Line Fed Staked Cylindrical Dielectric Resonator Antenna for UWB Application” Asia Pacific Microwave Conference (APMC 2016) 5th - 9th December, 2016, New Delhi, India.

  60. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Investigation on Triple band Hybrid Cylindrical Dielectric Resonator Antenna with #0056b3uction in Cross Polarization and Hybrid Mode Excitation” Asia Pacific Microwave Conference (APMC 2016) 5th - 9th December, 2016, New Delhi, India..

  61. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “A High Isolation Cylindrical Dielectric Resonator Antenna for MIMO Application” 11th International Conference on Industrial and Information Systems (ICIIS 2016), pp.118-122, 3-4 December 2016 held at IIT Roorkee, India.

  62. Anand Sharma, Gourab Das and Ravi Kumar Gangwar, “Tri-Band Cylindrical Dielectric Resonator Antenna with Novel Microstrip Line Feed for WiMAX/WLAN Applications” 11th International Conference on Industrial and Information Systems (ICIIS 2016), pp. 123-127, 3-4 December 2016 held at IIT Roorkee, India.

  63. Reena Kumari and Ravi Kumar Gangwar, “Conformal Strip Fed Circularly Polarized Cylindrical Dielectric Resonator Antenna With Modified Wilkinson Power Divider” 11th International Conference on Industrial and Information Systems (ICIIS 2016), pp. 345-348, 3-4 December 2016 held at IIT Roorkee, India.

  64. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Two Elements Dual Segment Cylindrical Dielectric Resonator Antenna Array with Annular Shaped Microstrip Feed” Twenty Second National Conference on Communications : NCC 2016, held at IIT Guwahati, India, 4-6 March, 2016.

  65. Anand Sharma and Ravi Kumar Gangwar, “Quad-Band Dual-Polarized Cylindrical Dielectric Resonator Antenna for WiMAX/WLAN Applications” 9th Annual International Conference ATMS – 2016, held at Goa, India, 1-3 February, 2016, pp 212-213.

  66. Gourab Das, Anand Sharma and Ravi Kumar Gangwar, “Four Element Cylindrical Dielectric Resonator Antenna Array with Annular Shaped Microstrip Feed” 9th Annual International Conference ATMS – 2016, held at Goa, India, 1-3 February, 2016, pp 268-273.

  67. Piyuesh Okas, Anand Sharma and Ravi Kumar Gangwar, “Semicircular Microstrip Antenna with Concentric Elliptical slot for Super Wideband Application” 9th Annual International Conference ATMS – 2016, held at Goa, India, 1-3 February, 2016, pp 274-276.

  68. Reena Kumari and Ravi Kumar Gangwar, “Circularly Polarized Cylindrical Dielectric Resonator Antenna fed with Modified Wilkinson Power Divider” 9th Annual International Conference ATMS – 2016, held at Goa, India, 1-3 February, 2016, pp 277-280.

  69. Pinku Ranjan and Ravi Kumar Gangwar, “Dual Segment Split Cylindrical sector Dielectric Resonator Antenna for X-band application” 9th Annual International Conference ATMS – 2016, held at Goa, India, 1-3 February, 2016, pp 86-89.

  70. Anand Sharma and Ravi Kumar Gangwar, “Quad-Band Hybrid Ring Shape Dielectric Resonator Antenna for WiMAX/WLAN Applications”2nd URSI Regional Conference on Radio Science, held at JNU, New Delhi, India, 16-19 November, 2015.

  71. Anand Sharma and Ravi Kumar Gangwar, “Tri-Band Dual Segment Ring Dielectric Resonator Antenna for WiMAX/ WLAN Applications” 2nd International Conference on Microwave and Photonics, held at ISM, Dhanbad, India, 11-13 December, 2015.

  72. Anand Sharma and Ravi Kumar Gangwar, “Quad-Band Cylindrical Dielectric Resonator Antenna for WiMAX/WLAN Applications” 6th International Conference on Computers and Devices for Communication (CODEC-2015), held at Kolkata, India, 16-18 December, 2015.

  73. Anand Sharma and Ravi Kumar Gangwar, “Triple Band Hybrid Cylindrical Dielectric Resonator Antenna for WiMAX/WLAN Applications” 5th IEEE Applied Electromagnetics Conference (AEMC-2015), held at IIT, Guwahati, India, 18-21 December, 2015.

  74. Anshul Gupta and Ravi Kumar Gangwar, “Analysis of Triangular Shaped Dielectric Resonator Antenna Using FDTD Method”, IEEE International Conference on Computational Electromagnetics (ICCEM) 2015,City University of Hong Kong, Hong Kong 02-05 Feb. 2015

  75. Ravi Kumar Gangwar, Anand Sharma, Ashana Tayal and D H B Roshan, “Wideband Dual Segment Cylindrical Dielectric Resonator Antenna with Annular Shaped Feed,” Antenna Testing and Measurement Society (ATMS-2015), Banglore, 03-04 Feb 2015.

  76. Gourab Das, Ravi Kumar Gangwar, “Two Element Cylindrical Dielectric Resonator Antenna Array With with Annular Shaped Feed,” Antenna Testing and Measurement Society (ATMS-2015), Banglore, 03-04 Feb 2015.

  77. A. K. Singh, Ravi Kumar Gangwar and B.K. Kanaujia, “Circular patch loaded Annular Ring Microstrip Antenna using L-Probe Feed,” Antenna Testing and Measurement Society (ATMS-2015), Banglore, 03-04 Feb 2015.

  78. Anshul Gupta, Ravi Kumar Gangwar, “FDTD Analysis of Conformal Strip Excited Rectangular Dielectric Resonator Antenna Array,” International Symposium on Antennas and Propagation (APSYM 2014), Cochin University of Science & Technology, Kochi, India, December 17 – 19, 2014

  79. Gourab Das, Ravi Kumar Gangwar, “Two Element Ring Dielectric Resonator Antenna Array With Defected Ground Structure,” International Symposium on Antennas and Propagation (APSYM 2014), Cochin University of Science & Technology, Kochi, India, December 17 – 19, 2014

  80. Vipul Ranjan Kahushik, Ravi Kumar Gangwar, “Low Profile Four Element Conical Dielectric Resonator Antenna for Wideband Applications,” International Symposium on Antennas and Propagation (APSYM 2014), Cochin University of Science & Technology, Kochi, India, December 17 – 19, 2014.

  81. Pinku Ranjan and R. K. Gangwar, “Four element Quarter Split cylindrical dielectric resonator antenna for Wireless Application”, The 8th European Conference on Antennas and Propagation (IEEE APS/URSI-2014), pp. 1946-1947, 6-11 July 2014 Memphis, TN, USA.

  82. A. K. Singh, Ravi Kumar Gangwar and Binod K. Kanaujia, “Cavity Backed Annular Ring Microstrip Antenna Loaded with Concentric Circular Patch”, International Conference on Antennas and Propagation and USNC-URSI Radio Science Meeting (EuCAP-2014), Hague, Netherlands, 6-11 April 2014.

  83. Pinku Ranjan and R. K. Gangwar, “Three element cylindrical sector dielectric resonator antenna for wide band Monopole like Radiation”, The 8th European Conference on Antennas and Propagation (EuCAP-2014), pp. 3846-3849, 6-11 April 2014 Hague, Netherlands.

  84. Sudhir Bhaskar, Ravi Kumar Gangwar and S. P. Singh, “Simulation Study On H-Shaped Log Periodic Microstrip Antenna Array,” Antenna Testing and measurement society (ATMS-2014), Chennai, 10-12 Feb 2014.

  85. Ravi Kumar Gangwar, Abishek Aigel and Pinku Ranjan, “Four element dual segment Triangular dielectric resonator antenna for wideband Application”, Antenna Testing and Measurement Society (ATMS-2014), Chennai, 10-12 Feb 2014.

  86. Pinku Ranjan and R. K. Gangwar, “Two element half split cylindrical dielectric resonator antenna for wide band Monopole like Radiation”, IEEE Applied Electromagnetic Conference (AEMC-2013), Bhubaneswar, 18-20 Dec. 2013.

  87. Anshul Gupta and Ravi Kumar Gangwar, “Four-Element High Gain Conformal Strip Excited Rectangular Dielectric Resonator Antenna Array”, IEEE Applied Electromagnetic Conference (AEMC-2013), Bhubaneswar, 18-20 Dec. 2013.

  88. A. K. Singh, Ravi Kumar Gangwar and Binod K. Kanaujia, “Bandwidth Enhancement of L-Probe Proximity-Fed Annular Ring Microstrip Slot Antenna”, 6th IEEE/International Conference on Advanced Infocomm Technology(ICAIT-2013), Tiwan, July 6th -9th, 2013.

  89. A. K. Singh, Ravi Kumar Gangwar, Binod K. Kanaujia and Abhishek Sharma, “Effect of Cylindrical Cavity Enclosure on Resonance Frequency of Annular Ring Microstrip Antenna” International Conference on Microwave and Photonics (ICMAP-2013), Indian School of Mines, Dhanbad, 13th-15th December 2013.

  90. Pinku Ranjan, Ravi Kumar Gangwar, “Four element rectangular dielectric resonator antenna for 5.0 GHz WLAN and WiMAX band application,” 6th International Conference on Advanced Infocomm Technology (ICAIT), 2013, 192-194, 6-9 July 2013.

  91. Ravi Kumar Gangwar and S. P. Singh, “A low profile wideband slotted square dielectric resonator antenna”, European Conference on Antenna and Propagation (EuCAP-2013), 9-13 April 2013, pp. 901-105.

  92. Anshul Gupta, Ravi Kumar Gangwar and S. P. Singh, “Three element probe feed triangular dieieletric resonator antenna,” Antenna Testing and measurement society (ATMS-2013), Kokata, 11-13 Feb 2013. (Best Paper Award)

  93. Anshul Gupta, Ravi Kumar Gangwar and S. P. Singh, “A Novel Three element probe feed triangular dieieletric resonator antenna,” International Symposium on Recent Trends in Electronics and Communication (ISRTEC-2012), KNIT-Sultanpur,8-9 November 2012.

  94. Ravi Kumar Gangwar, S.P. Singh and D. Kumar, “A Modified Fractal Rectangular Curve Dielectric Resonator Antenna Terminated in a Bio-medium,” International Conference on Electronic Systems (ICES-2011), NIT-Rourkela, India, pp. 268-273, 7-9 January 2011.

  95. Ravi Kumar Gangwar, S.P. Singh and D. Kumar, “Wideband dual segment Rectangular Dielectric Resonator Antenna Terminated in a Bio-medium,” 4th International Conference on Communications and Information Technology, (CIT-2010), Corfu Island, Greece, pp. 64-68, 22-25 July 2010.

  96. Ravi Kumar Gangwar , S.P. Singh, Raghvendra Kumar Chaudhrey and D. Pandey, “Experimental Study on ZST Ceramic Cylindrical Dielectric Resonator Antenna,” Antenna Testing and measurement society (ATMS-2010), New Delhi, pp. 201-204, 11-13 Feb. 2010.

  97. Ravi Kumar Gangwar, S. P. Singh and D. Kumar, “Simulation Study of Four Element Rectangular Dielectric Resonator Antenna Array Terminated in a Bio-medium,” IEEE Applied Electromagnetic Conference (AEMC-2009), Kolkata, 14-16 Dec. 2009.

  98. Ravi Kumar Gangwar, S.P. Singh and D. Kumar, “Modified Fractal Rectangular Curve Dielectric Resonator Antenna Terminated in a Bio-medium,” International Symposium on Microwave and Optical Technology (ISMOT-2009), New Delhi, pp. 664-667,16-19 Dec. 2009.

  99. Ravi Kumar Gangwar , S.P. Singh and D. Kumar, “A Novel Fractal Rectangular Curve Dielectric Resonator Antenna Terminated in a Bio-medium,” International Conference on Microwave Antenna and Remote Sensing (ICMARS-2009), Jodhpur, pp. 64(abstract book), 19-21 Dec. 2009

  100. Vineet Prakash Singh, Priyanka Singh, C.M. Chaturvedi, R. K. Shukla, A. Dhawan, Ravi Kumar Gangwar and S.P. Singh , “ 2.45 GHz Low Level CW Microwave Radiation Affects Embryo Implantation Sites and Single Strand DNA Damage in Brain Cells of Mice, Mus musculus,” International Conference on Emerging Trends in Electronic and Photonic Devices & Systems (ELECTRO-2009), Varanasi, pp.385-388, 22-24 Dec. 2009. (No. of citation: 01)

  101. Ravi Kumar Gangwar, Pallavi Gupta, S.P. Singh and D. Kumar, “Measurement of dielectric constant of Zn1−x Mgx TiO3 (ZMT) ceramic material at microwave frequencies,” International Conference on Recent Advances in Microwave Theory and Applications (MICROWAVE-2008), Jaipur India, pp. 607-614, 21-24 Nov. 2008.

  102. Ravi Kumar Gangwar , S.P. Singh and D. Kumar, “ Comparative Simulation Studies of Rectangular Dielectric Resonator Antenna with Probe and Microstrip line Feeds,” National Conference on Cutting Edge Computers and Electronics Technologies (CECET-2009), Pantnager India, pp. 407-411,14-16 Feb. 2009.

  103. Ravi Kumar Gangwar, S.P. Singh and D. Kumar, “ Comparative Simulation Studies of Probe and Microstrip line Fed Rectangular Dielectric Resonator Antenna,” Symposium on Vacuum Electronic Devices and applications (VEDA-2009), Varanasi India, pp. Ant.6.1-6.5, 8-10 January 2009.

  104. Harsh Vikram Singh, S. P. Gangwar and Ravi Kumar Gangwar, “Security threat in open channel network environment,” National Conference on Cutting Edge Computers and Electronics Technologies (CECET-2009), Pantnagar India, pp. 112-114,14-16 Feb. 2009.