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• Ph.D. in Low-Power Tunable Microwave Source in THz regime from IIT BHU, Varanasi (Sept. 2020)
• M. Tech. in Microwave Engineering from IIT BHU, Varanasi, 2010.
• B.Tech. in Electronics & Telecommunication Engineering from UPTU, Lucknow, 2007.

• August 2021 to till date- Adjunct Assistant Professor, IIIT Nagpur.
• Feb 2021 - Aug 2021- Assistant Professor, DSATM, Bangalore.
• Jan 2012 - July 2015- Assistant Professor in MSIT, Janakpuri Delhi.
• Aug. 2010 – Dec. 2011- Assistant Professor in VCE Meerut.

• 1st Semester ECE –Electronics Devices and Circuits
• 3rd Semester ECE- Analog ICs Laboratory
• 5th Semester ECE- ES Laboratory

Area of Research

•   High-Power and Low-Power Microwave source operating in THz regime for DNP/ NMR Spectroscopy applications. Photonic Band Gap structure based cavity and antenna, 5G Antenna.

Reviewer for Journal

• IEEE IAS Publications.

SCI/SCIE Journals:

1. Rajanish Kumar Singh, and M. Thottappan, “Simulation Investigations and Optimization of a Millimeter-Wave Gyrotron for Its Tunability Using Magnetic and Thermal Tuning Schemes,” IEEE Transactions Electron Devices, vol. 66, no. 8, pp. 3580- 3586, Jun.2019.

2. Rajanish Kumar Singh, and M. Thottappan, “Design and PIC Simulation Studies of Millimeter-Wave-Tunable Gyrotron Using Metal PBG Cavity as its RF Interaction Circuit,” IEEE Transactions on Plasma Science, vol. 48, no. 4, pp. 845 – 851, Feb.2020.

3. Rajanish Kumar Singh, Akash, and M. Thottappan, “Design and simulation investigations of high-power millimeter-wave gyrotron,”Journal of Electromagnetic Waves and Applications,vol. 34, no. 6, pp. 744-758, Apr. 2020.

4. Rajanish Kumar Singh, and M. Thottappan, “Design and Investigations of Millimeter Wave Gyrotron with Multi-Section Slightly Tapered RF Cavity for DNP/NMR Spectrometer Application,” IEEE Transactions on Plasma Science, vol. 49, no. 3, pp. 1097 – 1104, Mar.2021.

International Conferences:

1. Rajanish Kumar Singh and M. Thottappan, “Mode Analysis and Design of PBG Cavity for Tunable Gyrotron,”In 2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), pp. 1-4. IEEE, 2019.

2. Rajanish Kumar Singh and M. Thottappan, “Design and simulation of CW tunable gyrotron using PBG cavity as its RF circuit,”In 2018 11th German Microwave Conference (GeMiC), pp. 299-302,IEEE,2018.

3. Rajanish Kumar Singh and M. Thottappan, “Design and cold simulation of a metal PBG cavity for sub-millimeter wave gyrotron,”In 2017 Eighteenth International Vacuum Electronics Conference (IVEC), pp. 1-2,IEEE,2017.

4. Rajanish Kumar Singh and M. Thottappan,“PIC simulation of a millimeter wave gyrotron for DNP/NMR application,”In 2016 11th International Conference on Industrial and Information Systems (ICIIS), pp. 746-748,IEEE,2016.

5. Rajanish Kumar Singh and M. Thottappan “Design and simulation studies of a metal PBG cavity for millimeter wave gyrotrons,”In 2016 Progress in Electromagnetic Research Symposium (PIERS), pp. 4582-4582,IEEE,2016.

6. Rajanish Kumar Singh and M. Thottappan,“Particle-in-cell (PIC) simulation of a 250GHz gyrotron,”In 2016 Progress in Electromagnetic Research Symposium (PIERS), pp. 4423-4423,IEEE,2016.

International Conferences:

1. Rajanish Kumar Singh and M. Thottappan, “Design and Cold Simulation of Metal PBG Cavity for THz Gyrotron,” National Conference on Emerging Trends in Vacuum Electronics Devices and Application, 17-19 November 2017, IIT Roorkee,India.

2. Rajanish Kumar Singh and M. Thottappan,“PIC Simulation Studies of a High power Millimeter Wave Gyrotron," National Conference on Emerging Trends in Vacuum Electronics Devices and Application, 16-18 March 2017, Gandhinagar, Gujrat,India.

3. Rajanish Kumar Singh and M. Thottappan. " Design and Simulation Study of a Millimeter wave Gyrotron for DNP/NMR Applications," National Conference on Emerging Trends in Vacuum Electronics Devices and Application, 16-18 March 2017, Gandhinagar, Gujrat,India.

4. Rajanish Kumar Singh, Ashutosh and P. K. Jain,“Asymptotic Analysis of the Two Dimensional Metal PBG structures," National Symposium on Vacuum Technology and Its Applications to Electronics Devices and System, 11-13 November 2009, CEERI Pilani, Rajasthan,India.

• PhD.: Nil 
• M. Tech.: Nil 
• B.E. / B. Tech.: Nil

• Institute Calendar committee member.
• Member, Institute Level Anti Ragging Squad.

• Received Fellowship from MHRD, Government of India during M. Tech. and Ph.D. Programme.
• GATE (EC) qualified with AIR 844, 2008 and AIR 2797 in 2007.