Research / Specializations / ECE - Specialization II

Specialization : Microwave Engineering  

Microwave Engineering specialization was offered to the UG, PG and Ph.D. students since the year of establishment (1971) of the Department. Due to significant R&D contributions in this area, DST, Govt. of India sanctioned ~ Rs. 1 crore fund in late 1970’s for the project entitled ‘High Power Microwave Tubes’, Which was later converted to Centre of Research in Microwave Tubes (CRMT) in 1980’s funded by UGC. Further, UGC funded Special Assistance Programme (SAP) at the level of Departmental Special Assistance (DSA) began in 1983 in two thrust areas including Microwave Engineering thrust area. The pace of R&D activities in the area accelerated with the approval of DSA programme by UGC in 1983 and continued unabated till date. After successful completion of the DSA programme in 1988, four phases of UGC funded CAS programmes were sanctioned which included Microwave Engineering thrust area. CAS-Phase-IV programme was terminated in 2012 after conversion of our Institute into an IIT. Sponsored research projects in the areas of Microwave and Millimeter Wave Tubes- TWTs, Gyro-TWTs and Gyrotrons , High Power Microwave Devices for Directed Energy weaponry, Type MM cathodes for Microwave Tubes, Broadband Microstrip Antennas, and Dielectric Horn Antennas funded by DST, MHRD, DOE, DRDO and AICTE have been successfully completed by the Microwave Engineering Group. Starting from the year 1998, on the average more than three Ph.Ds. per year have been awarded and over twenty two (22) research papers per year have been published in international journals/national journals/conference proceedings from this specialization. One DSc degree in Electronics Engineering from this specialization was also awarded in 2006. 

Sub Areas :

  • Microwave and Millimeter Wave Tubes
  • Microwave and Millimeter Wave Antennas
  • MIC Passive Devices
  • Dielectric Horn and Dielectric Resonator Antennas
  • Remote Sensing
  • Biological Effects and Medical Applications of Microwaves
  • PBG Structures and Metamaterials

Major Achievements:

  • Dr. Somak Bhattacharyya has received Early Career Research Award (ECRA) from SERB, DST. 
  • Prof. P. K. Jain has been appointed as the Director of NIT Patna since November 2017.
  • Mr. Rajan Agrahari (Ph.D student of Prof. P. K. Jain) has been appointed as Adjunct Research Assistant in the Department of Engineering Science and Mechanics, Pennsylvania State University, USA for the period 26 May 2017 to 31 July 2017.
  • Dr. M. Thottappan has received the UK Commonwealth Professional Fellowship-2017 to work at the Department of Engineering, Lancaster University, Lancaster, UK
  • Dr. Somak Bhattacharyya has received Lifetime Honorary Membership by International Union of Radio Sciences (URSI) effective from September, 2017.
  • Dr. M. K. Meshram has received prestigious INSA-DGF Fellowship 2017 to visit Germany for three months (1 June 2017 to 31 Aug 2017).
  • Dr. M. K. Meshram has won the Gandhiyan Young Technological Innovation Award 2015, Festival of Innovations, Rashtrapati Bhawan, New Delhi, 7-13 March, 2015.
  • Dr. M. K. Meshram has made a technology transfer to Defense Avionics Research Establishment (DARE), DRDO, Bengaluru
  • Dr. M. K. Meshram has received the BOYSCAST Fellowship in 2009-2010 to work at at McMaster University, Hamilton, Ontario, Canada for 12 months.
  • Dr. M. K. Meshram had received the INSA fellowship to work at Hanyang University, South Korea during June-August, 2008
  • Mr. Mayank Agarwal (Ph.D student of Dr. M. K. Meshram) has been selected for Ph.D. Student Initiative Program under the sponsorship of the education committee of IEEE MTT-S during the International Microwave and RF Conference (IMaRC 2017), Ahmedabad, Dec. 11-13, 2017.
  • Mr. Mayank Agarwal (Ph.D student of Dr. M. K. Meshram) has received the prestigious Raman-Charpak Fellowship-2016 instituted by Indo French Centre for the Promotion of Advanced Research (IFCPAR/CEFIPRA), New Delhi to conduct part of Ph.D. in France for 6 months.
  • Mr. Manpuran Mahato (Ph.D student of Prof. P. K. Jain) has won the Navkriti Medal on Institute day 2017.
  • Mr. Mayank Agarwal (Ph.D student of Dr. M. K. Meshram) has won the Best Poster Award at 104th Indian Science congress (ISC), Tirupati, AP, Jan. 03-07, 2017.
  • Mr. Mayank Agarwal (Ph.D student of Dr. M. K. Meshram) has won the 1st prize at department level (Ph.D. category) in poster presentation event in “Institute Day, 2016” celebrated at IIT (BHU), Varanasi during April 2-3, 2016.
  • Mr. Mayank Agarwal (Ph.D student of Dr. M. K. Meshram) was the Finalist for Young Scientist Award (YSA) and received partial financial support in International conference, IEEE Radio and Antenna Days of the Indian Ocean (RADIO 2015), Mauritius, Sep. 21-24, 2015.
  • Mr. Mayank Agarwal (Ph.D student of Dr. M. K. Meshram) has won the Gandhian Young Technological Innovation Award (Appreciated under Technology Edge Category) 2015 (GYTI Award) under “Festival of Innovation” held at Rastrapati Bhawan, New Delhi during March 7-13, 2015.

Recent Publications (Last 3 Years):

  • R. Agrahari, A. Lakhtakia, and P. K. Jain, “Towards Information Transfer Around a Concave Corner by a Surface-Plasmon-Polariton Wave,” IEEE Photonic Journal, 11 (1), 6100112 (2019).
  • V. Kumar, S. Dwivedi, P. K. Jain, “Circular Sectoral Waveguide TM01 to TE11 Mode Converter”, Microwave and Optical Technology Letters, 61 (7), 1-5, (2019).
  • Sukesh Kumar Gupta, Shishir Kumar Patel, Munendra Singh Tomar, Shio Kumar Singh, Manoj Kumar Meshram, and Sairam Krishnamurthy, “Long-term exposure of 2450 MHz electromagnetic radiation induces stress and anxiety like behavior in rats,” accepted for publications in Neurochemistry International.
  • Mayank Agarwal and Manoj Kumar Meshram, “An Active Polarization-Insensitive Ultrathin Metamaterial Absorber with Frequency Controllability,” Advances in Signal Processing and Communication, 157-163, 2019.
  • Mumtaz Ali Ansari and M. Thottappan, “Design and Performance Analyses of High Efficiency X-band Relativistic Backward Wave Oscillator using an Improved Resonant Reflector under Low Guiding Magnetic Field," IEEE Transactions on Plasma Science, vol. 47, no. 4, pp. 1754-1761, 2019.
  • Sudhir Bhaskar, Amit Kumar Singh, “A Dual Band Dual Antenna with Read Range Enhancement for UHF RFID Tags,” International Journal of RF and Microwave Computer Aided Engineering, e21717, 2019.
  • Sudhir Bhaskar, Amit Kumar Singh, “Meandered Cross-shaped Slot Circularly Polarised Antenna for Handheld UHF RFID Reader,” International Journal of Electronics and Communications, Vol. 100, pp. 106-113, 2019.
  • Nilotpal, Lavesh Nama, Somak Bhattacharyya, and P. Chakrabarti, “A Metasurface-based Broadband Quasi Non-dispersive Cross Polarization Converter for Far Infrared Region,” accepted for publication in Wiley International Journal of RF and Microwave Computer-Aided Engineering.
  • Akhlesh Lakhtakia, Somak Bhattacharyya, and Sambit Kumar Ghosh, “Comment on: Wide incidence angle and polarization insensitive dual broad-band metamaterial absorber based on concentric split and continuous rings resonator structure,” IOP: Materials Research Express, vol. 6, no. 8, pp. 088002, 2019.
  • Vineet Singh, Somak Bhattacharyya, and P. K. Jain, “Implementation of a simple stepped frequency continuous wave target localization system comprising two antennas based on common region of sensing,” accepted for publication in Wiley International Journal of RF and Microwave Computer-Aided Engineering.
  • Sambit Kumar Ghosh, Vinit Singh Yadav, Santanu Das, and Somak Bhattacharyya, “Tunable Graphene Based Metasurface for Polarization-Independent Broadband Absorption in Lower Mid Infrared (MIR) Range,” accepted for publication in IEEE Transactions on Electromagnetic Compatibility.
  • Rajarshi Bhattacharyya, Somnath Roy, Om Prakash, Akhilendra Pratap Singh, Tapas Kumar Bhattacharyya, Pralay Maiti, Somak Bhattacharyya, and Santanu Das, “Mg0.5Zn0.5Fe2O4-polyurethane thin nanocomposite coating as broadband microwave absorber,” Springer Nature Applied Sciences, Vol. 1, Issue 1, Article No. 38, January 2019.
  • Vinit Singh Yadav, Sambit Kumar Ghosh, Somak Bhattacharyya, and Santanu Das, “Wideband Tunable Mid-infrared Cross-polarization Converter Using Monolayered Graphene-Based Metasurface over A Wide Angle of Incidence,” IET Microwaves, Antennas and Propagation, Vol. 13, Issue 1, pp. 82-87, January 2019.
  • P. Tripathi, P. Kumari, R Singh, B. Sahu, S.P. Singh and D. Kumar (2019) Cylindrical dielectric resonator antenna excited by a composite feed to generate monopole like radiation characteristics.  Journal of Electronic Materials 48(2): 1184-1195. ISSN: 0361-5235.
  • Sudhir Bhaskar and Amit Kumar Singh, “Linearly tapered meander line cross dipole circularly polarized antenna for UHF RFID tag applications,” International Journal of RF and Microwave Computer Aided Engineering, e21563, 2018.
  • Bidisha Barman, Sudhir Bhaskar and Amit Kumar Singh, “Spiral Resonator Loaded S-shaped Folded Dipole Dual Band UHF RFID Tag Antenna,” Microwave and Optical Technology Letters, vol. 61, no. 3, pp. 720-726, 2019.
  • Bidisha Barman, Sudhir Bhaskar and Amit Kumar Singh, “Dual-Band UHF RFID Tag Antenna Using Two Eccentric Circular Rings,” Progress In Electromagnetics Research M, Vol. 71, pp. 127–136, 2018.
  • R. Agrahari, A. Lakhtakia, and P. K. Jain, “Information Carried by a Surface-Plasmon-Polariton Wave Across a Gap,” Journal of Applied Physics, 124 (5), 053104 (2018).
  • V. S. Gangwar, R. K. Samminga, A. K. Singh, M. Jijenth, K. K. Suman, and S. P. Singh (2018) A novel strategy for the synthesis of thinned planar antenna array which furnishes lowest possible peak side lobe level without appearance of grating lobes over wide steering angles. Journal of Electromagnetic Waves and Applications 32(7): 842-857. ISSN: 0920-5071.
  • Bhagirath Sahu, Soni Singh, Manoj Kumar Meshram and S. P. Singh (2018) Super-compact ultra-wideband microstrip band-pass filter with improved performance using defected ground structure-based low-pass filter. Journal of Electromagnetic Waves and Applications 32(5): 635-650. ISSN:  0920-5071.
  • Bhagirath Sahu, Soni Singh, Manoj Kumar Meshram, and S. P. Singh (2018) Study of compact microstrip lowpass filter with improved performance using defected ground structure. International Journal of RF and Microwave Computer-Aided Engineering 28 (4): 1-11. 
  • P. Tripathi, P. Kumari, B. Sahu, Rahul Singh, S.P. Singh, D. Kumar (2018) Filleted RDRA using novel ceramic dielectric (3G-BST) with stable gain and improved bandwidth for X-band application. Ceramics International 44 (5): 5045-5054. ISSN: 0272-8842.
  • Situ Rani Patre and S. P. Singh, “Shared radiator MIMO antenna for broadband applications (2018) IET Microwaves, Antennas and Propagation. 12(7): 1153-1159. ISSN: 1751-8725.
  • Saba Shahin, Surya P. Singh and Chandra M. Chaturvedi (2018) 1800 MHz mobile phone irradiation induced oxidative and nitrosative stress leads to p53 dependent Bax Mediated Testicular Apoptosis in Mice, Mus musculus. Journal of Cellular Physiology. 233(9): 7253-7267. ISSN: 0021-9541.
  • Soni Singh, Bhagirath Sahu and S. P. Singh (2018) Bi-layered/tri-layered bio-media in direct contact with metal diagonal horn for hyperthermia. International Journal of Microwave and Wireless Technologies 10(8): 921-932. ISSN: 1759-0787.
  • Preeti Kumari, Pankaj Tripathi, B. Sahu, S.P. Singh, and Devendra Kumar (2018) Four-element composite triangular dielectric resonator antenna using Li2O-1.94 MgO-0.02 Al2O3-P2O5 ceramic for wideband applications. Journal of Electronic Materials. 47(9): 5218-5228. ISSN: 0361-5235.
  • Saba Shahin, Surya Pal Singh and Chandra Mohini Chaturvedi (2018) 2.45 GHz microwave radiation induced oxidative and nitrosative stress mediated testicular apoptosis: Involvement of a p53 dependent bax‐caspase‐3 mediated pathway. Environmental Toxicology 33(9): 931-945. Online ISSN: 1522-7278.
  • Bhagirath Sahu, Soni Singh, Manoj Kumar Meshram and Surya Pal Singh (2018) Integrated design of filtering antenna with high selectivity and improved performance for L-band applications.  AEU- International Journal of Electronics and Communications. 97: 185-194. ISSN: 1434-8411.
  • Bhagirath Sahu, Soni Singh, Manoj Kumar Meshram and S. P. Singh (2019) A new  compact ultra-wideband filtering antenna with improved performance. Journal of Electromagnetic Waves and Applications. 33(1): 107-124. ISSN: 0920-5071.
  • Sukesh Kumar Gupta, Manoj Kumar Mesharam, and Sairam Krishnamurthy, “Electromagnetic radiation 2450 MHz exposure causes cognition deficit with mitochondrial dysfunction and activation of intrinsic pathway of apoptosis in rats,” Journal of Biosciences, 43(2): 263-276, 2018.
  • Mayank Agarwal and Manoj Kumar Meshram, “Metamaterial-based dual-band microwave absorber with polarization insensitive and wide-angle performance,” AIP Advances, 8(9): 95016, 2018.
  • Vinit Singh Yadav, Sambit Kumar Ghosh, Somak Bhattacharyya, and Santanu Das, “Graphene Based Metasurface for Tunable Broadband Terahertz Cross Polarization Converter over Wide Angle of Incidence,” Applied Optics, Vol. 57, Issue 29, pp. 8720-8726, October 2018.
  • Praneet Munaga, Somak Bhattacharyya, Saptarshi Ghosh, and Kumar Vaibhav Srivastava, “An Ultra-thin Compact Polarization-Independent Hexa-Band Metamaterial Absorber,” Springer Applied Physics A, Vol. 124, Issue 4, pp. 331, April 2018.
  • Anshu Sharan Singh, and M. Thottappan, “RF Coupling and Beam-Wave Interaction Study in a Periodically Loaded X-band 25 MW Gyro-twystron,” IEEE Transactions on Electron Devices, vol. 65, no. 11, pp. 5089-5096, Nov. 2018.
  • Anshu Sharan Singh, and M. Thottappan, “Stability Study in Dielectric Ring Loaded Periodic Interaction Structure for a Mega-Watt Class Gyro-twystron,” IEEE Transactions on Electron Devices, vol. 65, no. 10, pp. 4585-4591, Oct. 2018.
  • Mumtaz Ali ansari and M.Thottappan, “Analysis, Design, and 3D-Simulation of a High Efficiency Overmoded Non-uniform Relativistic Backward Wave Oscillator,” IEEE Transactions on Electron Devices, vol. 65, no. 3, pp. 1158-1163, March 2018..
  • Soni Singh, Bhagirath Sahu, and S. P. Singh (2018) Direct-contact water-loaded metal- dielectric wall diagonal horn applicators for hyperthermia. IETE Technical Review, 35(2): 122-131.
  • Situ Rani Patre and S. P. Singh, “Shared radiator MIMO antenna for broadband applications” IET Microwaves, Antennas and Propagation, DOI:  10.1049/iet-map.2017.0331, Available Online: 22 Jan 2018.
  • M. Mahto and P. K. Jain, “Study of Virtual Cathodes Formation during Beam-Wave Interaction in the Reltron Oscillator,” Physics of Plasmas (AIP), vol. 24, p. 93107, August 2017. 
  • Amit Arora, M. Thottappan, and P. K. Jain, “PIC Simulation of a Millimeter Wave Gyrotron Traveling Wave Amplifier”, International Journal of Microwave and Optical Technologogy (IJMOT). vol.12, no. 1, pp. 37-44, January 2017..
  • V. Nallasamy, Subrata Kumar Datta, SUM Reddy and P. K. Jain, “Advances and present trends in magnetically insulated line oscillator Magnetically Insulated Line Oscillator,” Journal of Electromagnetic Waves and Applications (JEMWA), vol. 31, pp. 1864-1874,  2017.
  • Gargi Dixit, Arjun Kumar and P. K. Jain, Design Analysis and Simulation Study of an Efficiency Enhanced L-Band MILO, Physics of Plasmas (AIP), vol. 24, pp. 013113(1-11), 2017.
  • M. Agarwal, A. Kumar Behera, M. K. Meshram, “MIMO-Configured WLAN Access Point Antenna With High Port Isolation,” Journal of Electromagnetic Waves and Applications, vol. 31, no. 10, pp. 1007-1019, 2017.
  • H.S. Singh and M. K. Meshram, “Effect of User Proximity on Internal Quad Band Mobile Phone MIMO/Diversity Antenna Performances,” Wireless Personal Communications, vol. 95, no. 2, 1417-1431, 2017. .
  • Pouria Kamalvand, Gaurav Kumar Pandey, and Manoj Kumar Meshram, “A Single Sided Meandered Dual Antenna Structure for UHF RFID Tags,” International Journal of Microwave and Wireless Technologies, vol. 9, No. 7,  pp. 1419-1426, 2017.
  • M. Agarwal, A. K. Behera, and M. K. Meshram, “Wide-angle quad-band polarization-insensitive metamaterial absorber,” Electronics Letters, vol. 52, no. 5, pp. 340-342, 2016. 
  • Somak Bhattacharyya, Saptarshi Ghosh, and Kumar Vaibhav Srivastava, “A Wideband Cross Polarization Conversion using Metasurface,” Radio Science, Vol. 52, Issue 11, pp. 1395-1404, November 2017.
  • Smrity Dwivedi, “Simulation Analysis on Applicability of Meta Material and PBG Based mm-Wave Planar Antenna for Advanced Cellular Technologies,” Scientific Research, Open Journal of Antennas and Propagation (OJAPr), 5, pp. 23-35, 2017.
  •  Smrity Dwivedi, “Design of Wideband PBG Antenna for New Generation Communication Systems through Simulation, Scientific Research,” Open Journal of Antennas and Propagation (OJAPr), 5, 169-179, 2017.

Recent Conference Proceedings:

  • Sudhir Bhaskar, Bidisha Barman and Amit Kumar Singh, “Circularly Polarized Meander Line Cross Dipole Antenna for UHF RFID Applications,” URSI Asia Pacific Radio Science Conference, New Delhi, 9-15 March 2019.
  • Bidisha Barman, Sudhir Bhaskar and Amit Kumar Singh, “Eccentric Circular Ring RFID Tag Antenna for Dual-Band Operation,” URSI Asia Pacific Radio Science Conference, New Delhi, 9-15 March 2019.
  • Bidisha Barman, Sudhir Bhaskar and Amit Kumar Singh, “Dual-Band UHF Folded Dipole RFID Tag Antenna Loaded with Spiral Resonator,” URSI Asia Pacific Radio Science Conference, New Delhi, 9-15 March 2019.
  • V. Singh, A. Kumar, S. Bhattacharyya, and P. K Jain, “Behind the Wall Heartbeat Detection using SVD and MTI Filtering,” URSI AP-RASC 2019, 09 - 15 March 2019, New Delhi, India.
  • Diptiranjan Samantaray, Somak Bhattacharyya, and K. V. Srinivas, “A Gain Enhanced Multiband Antenna using SRRs with Defected Ground Structure,” in 2019 URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Rudranil Nandi, Nilotpal, and Somak Bhattacharyya, “A Transmittive Type Broadband Cross Polarization Converter for Mid Wavelength Infrared Region,” in 2019 URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Rajanish Kumar Singh and M. Thottappan, “Mode Analysis and Design of PBG Cavity for Tunable Gyrotron”, URSI Asia Pacific Radio Science Conference (AP-RASC)-2019, New Delhi, India, March 9-15th, 2019.
  • Nilotpal, Somak Bhattacharyya, and P. Chakrabarti, “A Simple Ultrathin Quad Band Polarization Insensitive Metamaterial Absorber for Infrared Applications,” in 2019 URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Aman, Vineet Singh, and Somak Bhattacharyya, “Reconstruction of Relative Permittivity and Thickness Profiles of Different Dielectric Samples Using Time Domain Multiple Reflection Method,” in URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Sambit Kumar Ghosh, Santanu Das, and Somak Bhattacharyya, “A Graphene Based Broadband Metasurface Absorber in the Terahertz Region,” in 2019 URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Sambuddha Sarkar, Tanmoy Chakrabarti, Sambit Kumar Ghosh, and Somak Bhattacharyya, “A Broadband FSS Bandstop Filter in Terahertz Region,” in 2019 URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Sambuddha Sarkar, Tanmoy Chakrabarti, Sambit Kumar Ghosh, and Somak Bhattacharyya, “A Broadband Bandpass FSS Filter in Terahertz Region,” in URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Smriti Rai, Somak Bhattacharyya, and Akhlesh Lakhtakia, “Pixelated Metasurfaces for Terahertz Absorption and Polarization Conversion,” in URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Roopan Tuli, Diptiranjan Samantaray, and Somak Bhattacharyya, “A Multiband Wearable Antenna with Defected Ground Structure,” in 2019 URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • Rajarshi Bhattacharyya, Jyoti, Aman Gupta, Om Prakash, Somnath Roy, Tapas Kumar Bhattacharyya, Pralay Maiti, Somak Bhattacharyya, and Santanu Das, “In-situ synthesis of (Mg0.5Zn0.5)Fe2O4-graphene oxide nanocomposite for broadband microwave absorption in GHz frequency range,” in 2019 URSI Asia Pacific Radio Science Conference (AP-RASC 2019), New Delhi, India, 9-15 March, 2019.
  • S. Shee, S. Dwivedi, "PIC Simulation of a Double Side-cavity Reltron, Calculation of Cavity Reactance and Comparison with Conventional Reltron," APRASC, 09-15 March 2019, Indian Habitat Center, New Delhi, India.
  • Shivani Chandra and Smrity Dwivedi, “Comparative analysis of Reconfigurable Patch Antenna Array for different Liquid Crystal Substrates,”  URSI AP-RASC 2019, 09 - 15 March 2019, New Delhi, India.
  • R. Agrahari, A. Lakhtakia, and P. K. Jain, “Transfer of Information using Surface-Plasmon-Polariton Waves,” Proceedings of SPIE 10924: Optical Interconnects XIX,  2-7 February 2019, San Francisco, California, USA, Paper No. 109240R [doi: 10.1117/12.2506456]
  • A. Kumar, P. Tripathi, S. Dwivedi, and P. K. Jain, “PIC Simulation Study of L-band Bifrequency Magnetically Insulated Line Oscillator,” URSI AP-RASC 2019, 09 - 15 March 2019, New Delhi, India.
  • P. Tripathi, A. Kumar, S. Shee, S. Dwivedi, and P. K. Jain, “Beam-wave Interaction Analysis of X-band Gridless Reltron,” URSI AP-RASC 2019, 09 - 15 March 2019, New Delhi, India.
  • Sweta Agarwal and M K Meshram, “Pattern Reconfigurable Antenna using Key-shaped Monopoles for WiMAX Application,” Asia Pacific Radio Science Conference (AP-RASC) 2019, 9-15 March 2019, New Delhi.
  • Surya P. Singh. 2019. Microwave thermotherapy for clinical applications. URSI Asia Pacific Radio Science Conference, New Delhi, India, March 2019.
  • A. Kumar, P. Tripathi, S. Dwivedi and P. K. Jain, “Eigenmode and PIC Simulation Study of S-band Bifrequency MILO,” National conference on Emerging trend in vacuum electronics device and applications (VEDA), 22-24 November 2018, IIT Guwahati, Assam India.
  • P. Tripathi, A. Kumar, S. Shee, S. Dwivedi and P. K. Jain, “Beam Wave Interaction Analysis of X- Band Gridded Reltron,” National conference on Emerging trend in vacuum electronics device and applications (VEDA), 22-24 November 2018, IIT Guwahati, Assam India.
  • S. Shee, P. Tripathy, S. Dwivedi, “Beam Wave Interaction Study and Calculation of Cavity Reactance Near Resonance for a Gridless Reltron,” National conference on Emerging trend in vacuum electronics device and applications (VEDA), 22-24 November 2018, IIT Guwahati, Assam India.
  • V. Singh, S. Bhattacharyya, and P. K Jain,” Through the Wall Human Signature Detection using Principle Component Analysis (PCA),” IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 8-13 July 2018, Boston, Massachusetts, USA.
  • P. Tripathi, A. Kumar, S. Shee, S. Dwivedi and P. K. Jain, “Simulation Investigation of Ku- Band Gridless Reltron,” IMaRC 2018, 28-30 November 2018, Kolkata, India.
  • Prakash, M Agarwal and M K Meshram, “An Active Polarization-Insensitive Ultrathin Metamaterial Absorber with Frequency Controllability,” Advances in Signal Processing and Communication, Lecture Notes in Electrical Engineering, vol 526. Springer, Singapore, 157-163. 
  • Saurabh Kumar Srivastava and Manoj Kumar Meshram, “Ultra Wideband Reflective Polarization Converter Based on Double Slit Split Ring Resonators Shaped Metasurface,” International Microwave and RF Conference (IMaRC) 2018, 28-30 November 2018, Kolkata.
  • Arun Kumar Saurabh and Manoj Kumar Meshram, “Compact Quad-Element Triple-Band MIMO Antennas for WLAN/WiMAX Applications,” 2018 IEEE Indian Conference on Antennas and Propagation (InCAP 2018), 16-19 Dec 2018, Hyderabad.
  • R. Agrahari, A. Lakhtakia, and P. K. Jain, “Scattering of Surface-Plasmon-Polariton Wave by an Abrupt Discontinuity,” IEEE International Symposium on Antenna and Propagation and USNC-URSI Radio Science Meeting, 8-13 July 2018, Boston, Massachusetts, USA.
  • A. Kumar, P. Tripathi, S. Dwivedi, and P. K. Jain, “Simulation Investigation of S/Ku dual-band magnetically insulated line Oscillator,” IMaRC 2018, 28-30 November 2018, Kolkata, India.
  • Diptiranjan Samantaray, Somak Bhattacharyya, and K. V. Srinivas, “Modified Fractal-shaped Slotted Patch Antenna with Dipole-shaped Slotted Ground Plane with Enhanced Gain for X-band Applications,” in IEEE Indian Conference on Antennas and Propagation (InCAP 2018), Hyderabad, India, 16-19 December, 2018.
  • Sohom Das, Soham Ghosh, Diptiranjan Samantaray, and Somak Bhattacharyya, “An Efficient Terahertz Antenna using CPW Interdigital Capacitor,” in IEEE Indian Conference on Antennas and Propagation (InCAP 2018), Hyderabad, India, 16-19 December, 2018.
  • Diptiranjan Samantaray, Somak Bhattacharyya, and K. V. Srinivas, “Modified Fractal-shaped Slotted Patch Antenna with Defected Ground Structure for Multiband Applications,” in IEEE INAE Workshop on Electromagnetics (IIWE 2018), Trivandrum, India, 6-8 December, 2018.
  • Soham Ghosh, Sohom Das, Diptiranjan Samantaray, and Somak Bhattacharyya, “Meander Line based Defected Ground Microstrip Antenna slotted with SRR for Terahertz range,” in IEEE INAE Workshop on Electromagnetics (IIWE 2018), Trivandrum, India, 6-8 December, 2018.
  • Rudranil Nandi, Nilotpal, and Somak Bhattacharyya, “A Broadband Polarization Insensitive Cross Polarization Converter using Metasurface for Long Wavelength Infrared Region,” in IEEE INAE Workshop on Electromagnetics (IIWE 2018), Trivandrum, India, 6-8 December, 2018.
  • Nilotpal, Somak Bhattacharyya, and P. Chakrabarti, “An Ultrathin Wide Angle Polarization Insensitive Mid-Infrared Metamaterial Absorber for THz Detection,” in IEEE International Microwave & RF Conference (IMaRC 2018), Kolkata, India, 28-30 November, 2018.
  • Sambit Kumar Ghosh, Somak Bhattacharyya, and Santanu Das, “A Graphene Based Metasurface with Wideband Absorption in the Lower Mid Infrared Region,” in IEEE International Microwave & RF Conference (IMaRC 2018), Kolkata, India, 28-30 November, 2018. 
  • Lavesh Nama, Somak Bhattacharyya, and Pradeep Kumar Jain, “An Ultra-thin Wideband Linear to Circular Polarization Converter using Metasurface,” in IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, pp. 777-778, 8-13 July, 2018, Boston, USA.
  • Sambit Kumar Ghosh, Vinit Singh Yadav, Somak Bhattacharyya, and Santanu Das, “A Graphene Based Bandwidth Enhanced Metamaterial Absorber using Circular Ring,” in IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, pp. 1491-1492, 8-13 July, 2018, Boston, USA.
  • Nilotpal, Abhishek Kumar Singh, Mamta Upadhyay, Rashmi Lata, Somak Bhattacharyya, and P. Chakrabarti, “A Proposed Long Wavelength Infra-red Metamaterial Absorber for THz Detection,” in IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, pp. 2067-2068, 8-13 July, 2018, Boston, USA.
  • Nisheeth Upadhyay and Smrity Dwivedi, “Frequency Tunable SIW Cavity Resonator Integrated With Schottky Diode,” IEEE International Microwave and RF Conference 2018, 28-30 November 2018.
  • Soumojit Shee and Smrity Dwivedi, “Parametric Analysis of Reltron Modulation Cavity and Q-factor Calculation from S11”, IEEE International Microwave and RF Conference 2018, 28-30 November 2018.
  • Rahul Garg, Smrity Dwivedi and R. Tomar, “A Wide Band, Highly-Efficient Circular Patch Antenna with Split Triangular-Shape Slit”, 8th IEEE CSNT 2018 at RGPV Bhopal, 24-66 Nov 2018.
  • Smrity Dwivedi, Analysis of Wideband Millimeter Wave PBG Antenna, International Conference on Recent Innovations in Engineering and Technology (ICRIET), 5-June 2018, Bangkok, Thailand.
  • V. Veera Babu, Anshu Sharan Singh, Smrity Dwivedi, M.Thottappan, “Design Studies of a Ka-band Gyro-Twystron,” National conference on Emerging trend in vacuum electronics device and applications (VEDA), 22-24 November 2018, IIT Guwahati, Assam India.
  • Anshu Sharan Singh and M. Thottappan, “Analysis of Pre-bunching RF Sections for Weakly Relativistic Gyro-Twystron,” National Symposium on Vacuum Electronic Devices & Applications (VEDA)-2018, IIT, Guwahati, India, 22-24 November, 2018.
  • V. Venkata Reddy, Mumtaz Ali Ansari and M. Thottappan, “Design Studies on S-Band Uniform Relativistic Backward Wave Oscillator,” National Symposium on Vacuum Electronic Devices & Applications (VEDA)-2018, IIT, Guwahati, India, 22-24 November, 2018.
  • Akash and M. Thottappan, “Numerical Analysis of Resistively Loaded Waveguide for W-band Gyro-TWT,” National Symposium on Vacuum Electronic Devices & Applications (VEDA)-2018, IIT, Guwahati, India, 22-24 November, 2018.
  • S. G. Yadav, A.S. Singh, and M. Thottappan, “Beam-Wave Interaction Studies of W-band Gyro-twystron,” National Symposium on Vacuum Electronic Devices & Applications (VEDA)-2018, IIT, Guwahati, India, 22-24 November, 2018.
  • Mumtaz Ali Ansari and M. Thottappan, “PIC Simulation of Relativistic Backward Wave Oscillator using Bragg Structure,” National Symposium on Vacuum Electronic Devices & Applications (VEDA) - 2018, IIT, Guwahati, India, 22-24 November, 2018.
  • Akash and M. Thottappan, “3D Beam-Wave Interaction Study in a Dielectric Loaded W-band Gyro-TWT using MAGIC”, IEEE MTT-S International Microwave and RF Conference (IMaRC)-2018, Kolkata, India, Nov. 28-30th, 2018.
  • Mumtaz Ali Ansari and M.Thottappan, “Study of Improved Cavity Resonant Reflector for an X-Band Relativistic Backward Wave Oscillator”, IEEE MTT-S International Microwave and RF Conference (IMaRC)-2018, Kolkata, India, Nov. 28-30th, 2018.
  • S. G. Yadav, A.S. Singh, and M.Thottappan, “ 3D Particle-In-Cell Simulation of W-band Gyro-Twystron Amplifier”, IEEE MTT-S International Microwave and RF Conference (IMaRC)-2018, Kolkata, India, Nov 28-30th, 2018.
 

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