36. Ravindiran Asaithambi, and Rajkishor Kumar, "Self-Diplexing SIW Rectangular Cavity-Backed Antenna Featuring TE210 and TE220 Modes with a Modified Inverted Z-Shaped Radiating Slot", Electronics, MDPI, Vol. 14, No. 16, pp. 3198, 2025. [link to download].
35. G. L. P. Ashok, G. V. Nath, Rajkishor Kumar and Bala Chakravarthy Neelapu "Compact Decagonal Shaped UWB Antenna for Breast Cancer Detection", IETE Journal of Research, Vol. XXXX| No. XXXX, pp. XX- XX, 2025. [link to download].
34. Naveen Mishra, Avinash Chandra, Rajkishor Kumar, Karthikeyan M., Prakash Pareek, and Lokendra Singh, "A Review on distinct microwave metamaterial structures and their uses", Materials Science and Engineering: B, Elsevier, Vol. 313, Art No. 117917, pp. 01- 13, 2024. [link to download].
33. Vijay Kumar, Avinash Chandra, and, Rajkishor Kumar "Graphene–metal Hybrid based Reconfigurable Wideband Terahertz Antenna with Improved Far-Field Characteristics", Optical and Quantum Electronics, Springer, Vol. 56| Article Number 1176, 2024. [link to download].
32. Sreenath Reddy Thummaluru, Rajkishor Kumar and, Raghvendra Kumar Chaudhary "Frequency Tunable SIW Band-Reject Filter with Increased Fundamental Mode Bandwidth for Spectrum Underlay Cognitive Radio", International Journal of RF and Microwave Computer-Aided Engineering, WILEY, Vol. 2024 | Article ID 4303470, pp. 01-09, 2024. [link to download].
31. Ravindiran Asaithambi and Rajkishor Kumar, "Design and Implementation of Novel H-shaped Self-Diplexing SIW Rectangular Cavity Backed Antenna with Harmonics Suppression for Terrestrial Communications", International Journal of Antennas and Propagation, WILEY, Vol. 2024 | Article ID 6618202, pp. 01-10, 2024. [link to download].
30. UJJWAL, Athul M Srinivas, Rajkishor Kumar and Prashanth Barla, "Blocking Triggered Multi-path Routing with Spectrum Retuning in Elastic Optical Networks ", Optical Fiber Technology, Vol. 83(103673), pp. 01-21, 2024. [link to download].
29. Kalyanbrata Ghosh, Avinash Chandra, Rajkishor Kumar, Arpan Shah and Ujjal Chakraborty, "CRLH-TL loaded Metamaterial Antenna with Frequency Band and Polarization Reconfigurability", International Journal of Communication Systems, Wiley, Vol. 37(03), pp. 01-12, 2024. [link to download].
28. UJJWAL, Rajkishor Kumar and Radhakrishna Bhat, "Generation of Broadband Optical Frequency Comb by Interfering Dual Lasers in Electro-optic Modulators", IEEE Access, Vol. 11, pp. 113064-113076, 2023.[link to download].
27. Thennarasi Govindan, Sandeep Kumar Palaniswamy, Malathi Kanagasabai, Sachin Kumar, Rajesh Agarwal, Rajkishor Kumar, and Damodar Panigrahy, "Design and Analysis of a Conformal MIMO Ingestible Bolus Sensor Antenna for Wireless Capsule Endoscopy for Animal Husbandry", IEEE Sensors Journal, Vol. 23, No. 22, pp. 28150 -28158 , 2023. [link to download]
26. Rajkishor Kumar, Avinash Chandra, Naveen Mishra and Raghvendra Kumar Chaudhary, "A Frequency Tunable Dielectric Resonator Antenna with Reduction of Cross Polarization for Wi-MAX and Sub 6 GHz 5G Applications", Defence Science Journal, DRDO, Vol. 73(04), pp. 475-486, 2023. [link to download]
25. Avinash Chandra, and Rajkishor Kumar, "Development of wideband CPW‐fed hexagon‐shaped circularly polarized slot antenna for wireless‐communications", International Journal of Communication Systems , Vol. 36(11), pp. 01-13, 2023. [link to download]
24. Rajkishor Kumar, Avinash Chandra, T. Sreenath Reddy, Md. Monirujjaman Khan and Raghvendra Kumar Chaudhary, A Miniaturized Dual-band Short-ended ZOR Antenna with Backed Ground Plane for Improved Bandwidth and Radiation Efficiency", International Journal of Antennas and Propagation, Hindawi, Vol. 2023 | Article ID 2478853, pp. 01-08, 2023. [link to download].
23.Ujjwal and Rajkishor Kumar, “Optical Frequency Comb Generator Employing Two Cascaded Frequency Modulators and Mach–Zehnder Modulator”, Electronics, MDPI, Vol. 12(13): 10.3390, pp. 01-13, 2023. [link to download]
22. Avinash Chandra, Rajkishor Kumar, Naveen Mishra, Hemprasad Yashwant Patil, "A Superstrate and FSS Loaded High Gain Circularly Polarized Twist Waveguide Array ", Microwave and Optical Technology Letters, Vol. 65, Issue 03, pp. 936-941, 2023. [link to download].
21. Avinash Chandra, Naveen Mishra, Rajkishor Kumar, Kundan Kumar, Hemprasad Yashwant Patil, "A superstrate and FSS embedded dual band waveguide aperture array with improved far-field characteristics", Microwave and Optical Technology Letters, Vol. 65, Issue 1, pp. 341-347, 2023. [link to download]
20. Arvind Kumar, Ayman A. Althuwayb, Divya Chaturvedi, Rajkishor Kumar, Farnaz Ahmadfard, "Compact planar magneto-electric dipole-like circularly polarized antenna", IET Communications, Vol. 16, Issue 20, pp. 2448-2453, 2022. [link to download]
19. Rajkishor Kumar, Nasimuddin and Raghvendra Kumar Chaudhary, "Wideband Circularly Polarized Hybrid Dielectric Resonator Antenna with Bi-directional Radiation Characteristics for Various Wireless Applications", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 29, Issue 09, pp. 01-10, 2019. [link to download]
18. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "A New Bidirectional Wideband Circularly Polarized Cylindrical Dielectric Resonator Antenna using Modified J-shaped Ground Plane for WiMAX/LTE Applications", Radioengineering, Vol. 28, Issue 02, pp. 391-398, 2019. [link to download]
17. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Compact Asymmetric Cross-shaped Rectangular Dielectric Resonator Antenna for Wideband Circular Polarization", Microwave and Optical Technology Letters (MOTL), Wiley Journals, Vol. 61, Issue 07, pp. 1863-1873, 2019. [link to download]
16. Rajkishor Kumar, Nasimuddin and Raghvendra Kumar Chaudhary, "A New Dual C-shaped Rectangular Dielectric Resonator Based Antenna for Wideband Circularly Polarized Radiation", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 29, Issue 06, pp. 01-13, 2019. [link to download]
15. T. Sreenath Reddy, Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Isolation and Frequency Reconfigurable Compact MIMO Antenna for WLAN Applications" IET Microwave, Antenna and Propagation (IET MAP), Vol. 13, Issue 04, pp. 519-525, 2019. [link to download].
14. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Stacked Rectangular Dielectric Resonator Antenna with Different Volumes for Wideband Circular Polarization Coupled with Step-shaped Conformal Strip", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 29, Issue 06, pp. 01-08, 2019. [link to download]
13. Rajkishor Kumar, T. Sreenath Reddy,and Raghvendra Kumar Chaudhary, "Improvements in Wi-MAX Reception: A New Dual-Mode Wideband Circularly Polarized Dielectric Resonator Antenna" IEEE Antennas and Propagation Magazine, Vol. 61 Issue 01, pp. 41-49, 2019. [link to download].
12. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "A Dual-band Dual-polarized Cubical DRA Coupled with New Modified Cross-shaped Slot for ISM (2.4 GHz) and Wi-MAX (3.3-3.6 GHz) Band Applications", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 29, Issue 1, pp. 01-06, 2019. [link to download]
11. Rajkishor Kumar, Reshma Singh and Raghvendra Kumar Chaudhary, "Miniaturized Triple-band Antenna Loaded with Complementary Concentric Closed Ring Resonators with Asymmetric CPW-fed Based on Epsilon Negative Transmission Line" IET Microwave, Antenna, and Propagation (IET MAP), Vol. 12, Issue 13, pp. 2073-2079, 2018. [link to download].
10. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Investigation of Higher Order Modes Excitation Through F-shaped Slot in Rectangular Dielectric Resonator Antenna for Wideband Circular Polarization with Broadside Radiation Characteristics" International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 28, Issue 6, pp. 01-11, 2018. [link to download].
9. T. Sreenath Reddy, Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Isolation Enhancement and Radar Cross Section Reduction of MIMO Antenna with Frequency Selective Surface", IEEE Transactions on Antennas and Propagation, Vol. 66 (03), pp. 1595 - 1600, 2018. [link to download].
8. Rakesh Chowdhury, Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "A Coaxial Probe Fed Wideband Circularly Polarized Antenna using Unequal and Adjacent-Slided Rectangular Dielectric Resonators for WLAN Applications" International Journal of RF and Microwave Computer -Aided Engineering (RFMiCAE), Wiley Journals, Vol. 28, Issue 4, 2018. [link to download].
7. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Circularly Polarized Rectangular DRA Coupled through Orthogonal Slot Excited with Microstrip Circular Ring Feeding Structure for Wi-MAX Applications", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 28, Issue 1,2018. [link to download].
6. Rajkishor Kumar, Rakesh Chowdhury and Raghvendra Kumar Chaudhary, "A New Dual-mode Wideband Circularly Polarized Rectangular Dielectric Resonator Antenna Coupled with Stubs and Asymmetric Ground Plane for WiMAX applications", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 27, Issue 9, 2017. [link to download].
5. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Wideband Circularly Polarized Dielectric Resonator Antenna Coupled with Meandered-Line Inductor for ISM/WLAN Applications", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 27, Issue 7, 2017.[link to download].
4. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "A New Modified CPW-Fed Wideband Circularly Polarized Half–Split Cylindrical Dielectric Resonator Antenna with Different Permittivity of two Layers in Radial Direction", International Journal of RF and Microwave Computer-Aided Engineering (RFMiCAE), Wiley Journals, Vol. 27, Issue 3, 2017. [link to download].
3. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "A Wideband Circularly Polarized Dielectric Resonator Antenna Excited with Conformal-Strip and Inverted L-Shaped Microstrip-Feed-Line for WLAN/ Wi-MAX Applications", Microwave and Optical Technology Letters (MOTL), Wiley Journals, Vol. 58 (10), pp. 2525-2531, 2016 [link to download].
2. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "A Wideband Circularly Polarized Cubic Dielectric Resonator Antenna Excited with Modified Microstrip Feed", IEEE Antennas and Wireless Propagation Letters, Vol. 15, Issue 1, pp. 1285-1288, 2016 [link to download].
1. Rajkishor Kumar, and Raghvendra Kumar Chaudhary, "Modified Microstrip-line-fed Rectangular Dielectric Resonator Antenna Coupled with Slotted Ground Plane for Wideband Circular Polarization", Microwave and Optical Technology Letters (MOTL), Wiley Journals, Vol. 58 (1), pp. 206-210, 2016 [link to download].