Conference Papers

[C71]  B.Samuel, B. Konnuru, Y. Kamalaker, D. Ramakrishna and E. Sangeetha, "Design    and Analysis of MicrostripMonopulse Feed for Tracking Radar Application   at 3.5GHz," 2025 IEEE Wireless Antenna and Microwave    Symposium (WAMS),               Chennai, India, 2025, pp. 1-5, doi:   10.1109/WAMS64402.2025.11158388.

[C70]  A.Mula and R. K. Dasari, "Design and Performance Analysis of Single Polarized             Dipole Antenna for Base Station Application," 2025 IEEE Wireless Antenna and               Microwave Symposium (WAMS), Chennai,   India, 2025, pp. 1-4, doi: 10.1109/WAMS64402.2025.11158840.

[C69]  N.P.Lakkakula and R. K. Dasari, "RF Bandpass Filter with Reconfigurable In-   Band   Notches," 2025 IEEE Wireless Antenna and Microwave Symposium  (WAMS),   Chennai, India, 2025, pp. 1-4, doi: 10.1109/WAMS64402.2025.11158325

[C68]  J.Gadam and D. Ramakrishna, "Quad-Port MIMO Antenna for Automotive         Applications," 2025 IEEE Wireless Antenna and Microwave Symposium  (WAMS),   Chennai, India, 2025, pp. 1-5, doi:       10.1109/WAMS64402.2025.11158304.

[C67]  P. Raju and D. Ramakrishna, "Advanced Sub-6 GHz 5G Communication Ring   Patch Antennas with H-Slot Defected Ground Structure," 2025 IEEE Wireless     Antenna and Microwave Symposium (WAMS), Chennai, India, 2025, pp. 1-5, doi: 10.1109/WAMS64402.2025.11158309.

[C66]  P. Jahnavi and R. K. Dasari, "X-Band Radar Monopulse Comparator Utilizing   Rat- Race Couplers," 2025 IEEE Wireless Antenna and Microwave    Symposium (WAMS),     Chennai, India, 2025, pp. 1-4, doi: 10.1109/WAMS64402.2025.11158401.

[C65]  G. Naveen, R. K. Dasari and T. A. Reddy, "Design of Lightweight Perforated Pyramidal Horn Antenna with Constant Beamwidth," 2025 IEEE International Workshop on Antenna Technology (iWAT), Cocoa Beach, FL, USA, 2025, pp.       94-97,       doi: 10.1109/iWAT64079.2025.10931214.

[C64]  P. Manaswini et al., "Multi-Facet Loaded Quad-Band Dielectric Resonator Antenna for Self-Sustainable Smart City Applications Using RF Energy Harvesting," 2024   IEEE Microwaves, Antennas, and Propagation Conference (MAPCON), Hyderabad,   India, 2024, pp. 1-4, doi: 10.1109/MAPCON61407.2024.10923610.

[C63]  Y. Batkeeri, V. N. Srujana, R. Daggula and D. R. Krishna, "Design and Optimization of SIW Cavity Filter for 14.5 GHz Applications," 2024 IEEE Wireless Antenna and      Microwave Symposium (WAMS), Visakhapatnam,   India, 2024, pp. 1-4, doi: 10.1109/WAMS59642.2024.10527808.

[C62]  S. Bhalke, R. Gugulothu, S. Chaturvedi, A. A. Naik and R. Dasari, "Design of 3.3GHz-3.8GHz 5Watt High Power Amplifier using GaN HEMT Device," 2024 IEEE Wireless Antenna and Microwave Symposium (WAMS), Visakhapatnam, India, 2024,   pp. 1-5, doi: 10.1109/WAMS59642.2024.10528026.

[C61]  B. Samuel, B. Konnuru, E. Sangeetha and D. Ramakrishna, "A Millimeter-   Wave Array Antenna for Improvement of Radiation Patterns," 2024 IEEE     Wireless Antenna and Microwave Symposium (WAMS), Visakhapatnam, India, 2024, pp. 1-4,  10.1109/WAMS59642.2024.10528142.

[C60]  A. Sowmya, B. Kunooru, V. N. Srujana and D. Ramakrishna, "Design and Analysis of Planar 3 × 3 Nolen Matrix for Beamforming Applications," 2024 IEEE Wireless     Antenna and Microwave Symposium    (WAMS), Visakhapatnam, India, 2024, pp. 1-6, doi: 10.1109/WAMS59642.2024.10528073.

[C59]  H. Naairah, L. Pollayi, N. SrujanaVahini, D. Ramakrishna and H. Nishat, "T- Slot    Patch Antenna Design for 5G Applications in Sub-6 GHz Band with           Radome    Analysis," 2023 IEEE Microwaves, Antennas, and Propagation      Conference   (MAPCON), Ahmedabad, India, 2023, pp. 1-5, doi: 10.1109/MAPCON58678.2023.10463789.

[C58]  D. Surender, V. Reddy Adama, T. Khan, F. A. Talukdar, D. Rama Krishna and G.   Amarnath, "Dual-Facet Loaded Dual-Polarized Quad-band Dielectric  Resonator- Rectenna for RF Energy Harvesting in Smart City    Applications," 2023 IEEE Wireless     Antenna and Microwave Symposium    (WAMS), Ahmedabad, India, 2023, pp. 1-5, doi: 10.1109/WAMS57261.2023.10242897.

[C57]  D. K. V. M. Kumar, B. M. Naik, S. V. Nandigama, B. Kunooru, and D. Ramakrishna,      "Design of Quasi Yagi Antenna with square resonator for Wireless Applications," in Proc. IEEE WAMS, pp. 1–5, 2023. doi: 10.1109/WAMS57889.2023.10242811.

[C56]  K. H. M. Naik, A. K. Singh, and D. R. Krishna, "Miniaturized and Optimum  thickness Low profile Fan Blade Electromagnetic Wideband Metamaterial Absorber,"    in Proc. 1st Int. Conf. Microwave, Antenna and Communication,     2023 doi: 10.1109/MACON57889.2023.10176339.

[C55]  T. Vijetha and D. R. Krishna, "Dual band notch antenna for ultra wide band   applications," in Proc. IEEE Microwaves, Antennas, and Propagation       Conference   (MAPCON), pp. 1961–1965, 2022. doi:       10.1109/MAPCON55378.2022.10046691.

[C54]  V. S. Yele, R. Dasharatha, S. Vahini, B. Kunooru, and D. Ramakrishna, "A  Series Fed Antenna Array at X-Band for Monopulse Operation," in Proc.   IEEE MAPCON, pp.      2042–2045,2022.doi:       10.1109/MAPCON55378.2022.10047290.

[C53]  R. Dasharatha, V. S. Yele, and R. Dasari, "Millimeter Wave SIW Fed Linearly    Tapered Slot Filtenna for 5G Applications," in Proc. IEEE MAPCON, pp.    1134– 1138, 2022. doi: 10.1109/MAPCON55378.2022.10047738.

[C52]  A. Munnaluru, S. V. Nandigama, R. K. Dasari, and B. Kunooru, "A 2x4 microstrip antenna array for monopulse tracking radar at S-band," in Proc.   IEEE MAPCON, pp.      186–190, 2022. doi: 10.1109/MAPCON55378.2022.10046706.

[C51]  A. N. Reddy, D. Ramakrishna, and M. Z. A. Khan, "Low Complexity, Fast          Computation of Nash Equilibrium in Cognitive Radios," in Proc. 4th IEEE   Middle      East and North Africa Communications Conference       (MENACOMM), 2022.        10.1109/MENACOMM53440.2022.9998188.

[C50]  S. V. Nandigama, K. M. Kamal, M. Muthukumar, and D. R. Krishna, "A       Cavity                 Backed Printed Blade Antenna for S-Band 5G Access      Points," in Proc. IEEE 19th       India Council International Conference   (INDICON),pp.1–4, 2022.       10.1109/INDICON56171.2022.10039852.

[C49]  G. Rajyalakshmi, Y. Ravikumar, D. Ramakrishna, and S. R. Kumbha, "Design    of             Polarization-Insensitive Quad-band Metamaterial Absorber for RCS reduction," in   Proc. IEEE INDICON, pp. 1–4, 2022.     10.1109/INDICON56171.2022.10040213.

[C48] A. N. Swamy, S. V. Nandigama, B. M. Naik, B. Kunooru, and D. Ramakrishna,      "Mutual coupling reduction between ultra-wide band antennas for millimeter   wave   applications," in Proc. IEEE 2nd Ukrainian Microwave Week (UkrMW), pp. 01–04, 2022. 10.1109/UkrMW55985.2022.10037088.

[C47]  K. S. Kumar, B. M. Naik, S. Vahini, B. Kunooru, and D. Ramakrishna, "Design of Miniaturized Planar Inverted F Antenna," in Proc. IEEE UkrMW,   pp. 281–284, 2022.       10.1109/UkrMW55985.2022.10037119.

[C46]  P. Shravya, A. K. Singh, R. K. Dasari, and S. K. Koul, "Design of Ultrathin Metasurface Lens for Gain Enhancement of Microstrip Patch Antenna," in Proc.   IEEE Indian Conference on Antennas and Propagation (InCAP), pp. 883–886,     2021.        10.1109/InCAP52216.2021.9726300.

[C45]  B. Kunooru and D. Ramakrishna, "Dual Polarized Cassegrain Reflector Antenna for   W-band Applications," in Proc. IEEE InCAP, pp. 786–789, 2021.  10.1109/InCAP52216.2021.9726316.

[C44]  B. Kunooru and D. Ramakrishna, "Mutual Coupling Reduction BetweenMicrostrip  Antennas at mm Wave Frequencies Using SIW Technology," in   Proc. IEEE InCAP, pp. 1002–1004, 2021.  10.1109/InCAP52216.2021.9726333.

[C43]  S. V. Nandigama, B. Kunooru, and D. R. Krishna, "Gain Enhancement of an   Aperture   Coupled Antenna using Metasurface at mm wave Frequency," in     Proc. IEEE InCAP, 2021. 10.1109/InCAP52216.2021.9726303.

[C42]  G. R. Shalini, D. R. Krishna, G. Karthikeya, and S. K. Koul, "Design of 3D  printed      lens antenna for 5G applications," in Proc. IEEE International Microwave and RF Conference (IMaRC), 2021.       10.1109/IMaRC49196.2021.9714615.

[C41]  B. Kunooru, S. Vahini, R. K. Dasari, and V. M. Pandharipande, "Orthogonal Polarized Horn Antenna with High Port Isolation at Ka-Band," in Proc. IEEE     MTT-S     Latin America Microwave Conference (LAMC), pp. 1–4, 2021.  10.1109/LAMC50356.2020.9294947.

[C40]  M. G. Reddy, K. Bharath, S. V. Nandigama, and R. Dasari, "Design of half power divider at Ku-band using empty substrate integrated waveguide," in Proc.      IEEE LAMC, pp. 1–3, 2021  10.1109/LAMC50356.2020.9294946.

[C39]  S. V. Nandigama, M. Nagaraju, B. Kunooru, and R. K. Dasari, "A Gain       Enhanced  Wideband Antenna using Metasurface for Mobile       Communications," in Proc. IEEE- HYDCON, pp. 1–4, 2020       10.1109/HYDCON50016.2020.9242752.

[C38]  B. Kunooru, S. V. Nandigama, and R. K. Dasari, "Design and Analysis of High   Gain   Slotted SIW Array Antennas at Ka-Band," in Proc. IEEE-HYDCON, pp. 1–4,2020.doi 10.1109/HYDCON50016.2020.9242753.

[C37]  R. Gugulothu, K. Lalkishore, R. Dasari, S. Bhalke, and A. A. Naik, "Improved package isolation for high gain MMIC packaging using offset port selection technique," in Proc. IEEE-HYDCON, pp. 1–5, 2020. 10.1109/HYDCON50016.2020.9242754.

[C36]  N. Mallaiah, N. V. K. Rao, and D. Ramakrishna, "RLS Adaptive Beamforming      Algorithm IntermsOf Energy Efficiency For Smart Antenna System," in Proc. IEEE Indian Conference on Antennas and Propagation (InCAP), pp. 1–4, 2019.  10.1109/InCAP47789.2019.9134501.

[C35]  B. Kunooru, D. Ramakrishna, Z. Nazneen, and A. Reddy, "Implementation of Phased       Array Antenna for wide scan using SIW Technology in K-Band," in Proc. IEEE  InCAP, pp. 1–3, 2019  10.1109/InCAP47789.2019.9134521.

[C34]  Z. Nazneen, K. Bharath, and D. Ramakrishna, "4-Stage switched beam phased      array   antenna using butler matrix," in Proc. IEEE InCAP, pp. 1–4, 2019.               10.1109/InCAP47789.2019.9134506.

[C33]  R. Malleboina, S. Rachamalla, B. Kunooru, S. Nandigama, D. Ramakrishna, et   al.,  "Design of Multiband Slot Antenna using SIW Technology," in Proc.      IEEE InCAP,       pp. 1–4, 2019. doi: 10.1109/InCAP47789.2019.9134596.

[C32]  R. Gugulothu, S. V. Bhalke, A. A. Naik, K. Lalkishore, and R. Dasari, "Multi-     chip    module based GaAs MMICs packaging for L-Band high gain   application," in Proc.     IEEE MTT-S International Microwave and RF Conference (IMARC), pp. 1–4, 2019.   doi: 10.1109/IMaRC45935.2019.9118771.

[C31]  B. Kunooru, S. V. Nandigama, D. R. Krishna, R. Gugulothu, and S. Bhalke, "Studies  on Microstrip to SIW transition at Ka-Band," in Proc. TEQIP III   Sponsored International Conference on Microwave Integrated Circuits, 2019. 10.1109/MICROWAVE.2019.8933234.

[C30]  B. Kunooru, S. V. Nandigama, D. Ramakrishna, and R. Gugulothu, "Design and        Analysis of a Microstrip Antenna Array for High Gain Applications at mm wave           frequencies," in Proc. TEQIP III Microwave     Integrated Circuits, 2019. doi: 10.1109/MICROWAVE.2019.8933168.

[C29]  B. Kunooru, S. V. Nandigama, S. S. Rani, and D. Ramakrishna, "Analysis of lhcp and    rhcp for microstrip patch antenna," in Proc. International Conference on     Communication and Signal Processing (ICCSP), 2019. doi:  10.1109/ICCSP.2019.8698034.

[C28]  R. Gugulothu, S. V. Bhalke, A. A. Naik, L. K., and R. Dasari, "Design and Development of High Performance Ceramic Packaging for Low Noise and High Gain      GaAs MMIC," in Proc. International Conference on E-Business and  Telecommunications, pp. 235–242, 2019.                                      10.1007/978-3-030- 24318-028.

[C27]  S. D. Ahirwar, D. Ramakrishna, and V. M. Pandharipande, "Design and development of a broadband planar dipole antenna," in Proc. International Conference on E- Business and Telecommunications, pp. 185–193, 2019. doi: 10.1007/978-3-030- 24318-022.

[C26]  S. V. Nandigama, D. R. Krishna, V. M. Pandharipande, T. K. Pal, and B. S. V.   Prasad, "A W-band Compact Dual Reflector Cassegrain antenna for Monopulse              Tracking Radar," in Proc. IEEE Asia-Pacific Microwave    Conference (APMC), 2019.      doi: 10.1109/APMC46564.2019.9038477.

[C25]  P. A. Rao, D. R. Krishna, and V. M. Pandharipande, "Multi band Multi       standard 50W      high efficiency and highly linear Power Amplifier for  Macro Base Stations," in Proc. IEEE APMC, 2019. doi:       10.1109/APMC46564.2019.9038430.

[C24]  D. Santhoshi, K. G. S., G. Shivani, D. R. Krishna, and S. K. Koul, "Dielectric loaded    polycarbonate based antipodal Vivaldi antenna for mmWave 5G       applications," in   Proc. IEEE InCAP, 2019. doi: 10.1109/InCAP47789.2019.9134512.

[C23]  G. Shivani, K. G. S., D. Santhoshi, D. R. Krishna, and S. K. Koul, "Low cost 3D     Printed dual band antenna for mm Wave 5G Applications," in Proc. IEEE InCAP, 2019. doi: 10.1109/InCAP47789.2019.9134513.

[C22]  A. S. Chandra, N. S. Vahini, D. Ramakrishna, and V. M. Pandharipande, "Design of microstrip patch reflectarray antenna at W-band," in Proc. IEEE Applied     Electromagnetics Conference (AEMC), pp. 1–2, 2017.  10.1109/AEMC.2017.8325706.

[C21]  S. Reddy and D. Ramakrishna, "Design of an UWB travelling wave antenna for    high    power transient applications," in Proc. IEEE International Conference   on Antenna    Innovations and Modern Technologies (iAIM), 2017. doi: 10.1109/IAIM.2017.8402627.

[C20]  J. D. R. Sambasiva Rao K and D. Ramakrishna, "Compact broadband       asymmetric slit    circularly polarized microstrip patch antenna for       GPS+GLONASS applications," in      Proc. IEEE iAIM, 2017.       10.1109/IAIM.2017.8402558.

[C19]  R. D. SravaniBijja and R. K. Singh, "Reconfigurable Antenna with Frequency Switching Capability For C BAND Application," in Proc. IEEE iAIM, 2017.    10.1109/IAIM.2017.8402530.

[C18]  D. R. J. K. S. R. Deepa B. G. and D. Ramakrishna, "Gain Enhancement of   Telemetry Antenna Using Metamaterial," in Proc. IEEE iAIM, 2017.       10.1109/IAIM.2017.8402634.

[C17]  S. Reddy, D. Ramakrishna and Sambasivarao, "Design of an UWB travelling wave    antenna for high power transient applications," 2017 IEEE International Conference   on Antenna Innovations & Modern Technologies for Ground,   Aircraft and Satellite      Applications (iAIM), Bangalore, India, 2017, pp. 1- 3, 10.1109/IAIM.2017.8402627.

[C16] M.Muthukumar, D.RamaKrishna and V.M.Pandharipande “Hybrid TR Module for Phased Array Antenna Application” Asian Electromagnetics Symposium 2017(ASIAEM2017), 23-27 July 2017, Bangalore, India.

[C15] D. Shyamala, R. Kichouliya,S. M. Satav, and R. Dasari“Far Field Boundary Characterization of Half Impulse Radiating Antenna (HIRA)”, Asian Electromagnetics Conference 2017(ASIAEM2017), 23-27 July 2017, Bangalore, India.

[C14]  P.Appa Rao, D.Rama Krishna and V.M.Pandharipande” Digital Predistorter for RF  Power  Amplifier”  11th  International  Conference  on  Microwaves,  Antenna, Propagation  & Remote Sensing ICMARS-2015, 15-17 December 2015, Jodhpur, India.

[C13]  D.RamaKrishnaand Y.PanduRangaiah “Reconfigurable Multiband Meandered line Antenna“2014 International Conference on Communication and Information Technology (ICCIT 2014), June 5-6, 2014, New York, USA.

[C12]  D.RamaKrishna and V.M.Pandharipande “Design and Implementation of Reconfigurable Wheel Antenna Array for MIMO Systems”, International Radar Symposium 2013(IRS2013), June 19 - 21, 2013, Dresden, Germany.

[C11]  D.RamaKrishna, V.M.Pandharipande and M.Muthukumar “Design of Ultra Wide Band Antenna for Phased Array Radar Applications”, International Radar Symposium 2013(IRS2013) June 19 - 21, 2013, Dresden, Germany.

[C10] D.RamaKrishna and V.M.Pandharipande, “Design and Development of Tri-Band Reconfigurable Printed Antenna Array using PIN Diodes”, IEEE Indian Antenna Week-2013, 3- 7 June 2013, Aurangabad, India.

[C9]   D.RamaKrishna, V.M.Pandharipande and M.Muthukumar, “Design and Implementation of Multiband Meandered line Antenna for Radar Applications”, 5th International Symposium on Microwaves-2012(ISM-12), 11 -14 December 2012, Bangalore, India.

[C8]   SyedaRabiyaUnnisa Begum, D.Rama Krishna, C.Prameelamma and V.M. Pandharipande, “Design and Development of 18GHz Reflector Antenna for Microwave Point to Point Links”, 2011 IEEE India Annual Conference on Engineering Sustainable Solutions, 16-18 December 2011,BITS Pilani, Hyderabad, India.

[C7]   S.Anila, H.Sudhir, D.Rama Krishna and V.M.Pandharipande, “Design and Development of Balanced Antipodal Vivaldi Antenna for Phased ArrayAntenna Applications”,2011 IEEE India Annual Conference on Engineering Sustainable Solutions, 16-18 December 2011,BITS Pilani, Hyderabad, India.

[C6]    D.RamaKrishna, V.M.Pandharipande and M.Muthukumar, “Design and Realization of Rectangular Reconfigurable Antenna (RRA) for Airborne RADAR”, 2011 IEEE International RF and Microwave Conference (RFM 2011), 12 - 14 December 2011, Seremban, Malaysia.

[C5]   SyedaRabiyaUnnisa Begum, D.Rama Krishna, C.Prameelamma and V.M. Pandharipande, “Design and Development of 18GHz Reflector Antenna for Microwave Point to Point Links”, 2011 IEEE India Annual Conference on Engineering Sustainable Solutions, 16-18 December 2011,BITS Pilani, Hyderabad, India.

  [C4]   S. Anila, D. Ramakrishna, and H. Sudhir, "Design and Development of       Balanced   Antipodal Vivaldi Antenna for Phased Array Antenna       Applications," in IEEE India    Annual Conference on Engineering       Sustainable Solutions, BITS Pilani, 2011.       10.1109/INDCON.2011.6139463.

[C3]   FarheenTamkanath, V.Srinivasa Rao and D. Rama Krishna “Design of a compact slotted patch antenna for dual polarization”, International Symposium on Microwaves – 2010, 11-14 December 2010, Bangalore, India.

[C2]   B.Sandhya Reddy, V.Srinivasa Rao and D.RamaKrishna, “Design of Linearly Polarized Aperture Coupled Patch Antenna for Bandwidth Enhancement”, International Symposium on Microwaves – 2010, 11-14 December 2010, Bangalore, India.

[C1]   OmjeeVankudothu and D.Rama Krishna, “Design and Development of Broadband (1-12 GHZ) Pyramidal and Planar Log-Periodic Dipole Antenna Array” IEEE International Conference on Aerospace Electronics, Communication and Instrumentation, 6-7 January 2010, Vijayawada, India.