About
Raghavendra G. Kulkarni received BE in Electronics and Communication Engineering from Karnatak University in 1979, MTech in Electrical Engineering from IIT Madras in 1982, and PhD from IIT Kharagpur in 1998. He joined Hybrid Microcircuits (HMC) division of Bharat Electronics Ltd., (BEL) Bengaluru in 1982, and developed several Surface Acoustic Wave (SAW) devices for commercial and defence applications. From 1998 to 2014, Dr. Kulkarni successfully led a team of R & D engineers for development of SAW devices, thick-film & thin-film HMCs, and MEMS pressure transducers for strategic applications. Dr. Kulkarni won two BEL R & D Excellence Awards; first one for development of SAW filters used in TV receivers (1989), and the second one for development of HMCs used in missile telemetry (2011). In November 2013, he received Raksha-Mantri Award for development of electronic modules for missiles. Dr. Kulkarni has obtained two patents on SAW devices and has authored more than eighty-five papers in the field of SAW devices, signal processing, and mathematics. He is the inventor of several window functions like polynomial windows, hyperbolic cosine windows, and sine windows, for signal processing applications. In September 2014, Dr. Kulkarni joined PES University, Bengaluru, as Distinguished Professor in the Department of Electronics & Communication Engineering. He is a senior member of IEEE, life member of Ramanujan Mathematical Society, Indian Mathematical Society, and IMAPS-India. He has given invited talks at TIFR Mumbai, IIT Delhi, SSPL Delhi, IGCAR Kalpakkam, LRDE Bangalore, IISc Bengaluru, Defence Lab Jodhpur, etc., and conducted workshops on design of SAW filters at ISRO and BEL, Bengaluru. Dr Kulkarni received outstanding educator award for the year 2023 from IEEE AP/MTT Society Bangalore chapter for his outstanding contribution to the antenna/microwave education. He also received Protsahan award for the journal paper publications in the field of communication engineering from IEEE COmSoc Bangalore chapter.
Research Areas
13- R. G. Kulkarni, “Fields inside a waveguide - a different approach” IEEE Microwave Magazine, Vol. 25, No. 4, April 2024, pp. 110-112, DOI: 10.1109/MMM.2024.3351971.
- R. G. Kulkarni, “Transforming a quartic equation to the binomial form”, Resonance (Springer), Vol. 29, No. 3, March 2024, pp. 375-381, DOI: 10.1007/s12045-024-0375-z.
- R. G. Kulkarni, “Magnetic field due to an infinite current sheet”, IEEE Microwave Magazine, Vol. 24, No. 9, September 2023, pp. 78-79, DOI: 10.1109/MMM.2023.3284773.
- R. G. Kulkarni, “Solution of single parameter Bring quintic equation”, The Mathematics Student, Vol. 92, Nos. 1-2, January-June 2023, pp. 53-62.
- R. G. Kulkarni, “Novel cosine time functions for triple band filtering applications”, Circuits, Systems, and Signal Processing, Vol. 41, 2022, pp. 6484-6492.
- R. G. Kulkarni, "Synthesis of fast-decaying window functions", IEEE Signal Processing Magazine, Vol. 39(2), March 2022, pp. 17-23.
- R. G. Kulkarni, “Use of an exponential function for solving cubic equations” The Mathematics Student, Vol. 94, Nos. 1-2, 2025, pp. 200-204.
- R. G. Kulkarni, “Insert roots to extract the roots of a quartic polynomial”, Bulletin of TICMI (Georgia), Vol. 29, No. 1, 2025, pp. 63-67.
- R. G. Kulkarni, “Solution of principal quintic equation”, Resonance – Journal of Science Education, Vol. 30, No. 6, June 2025, pp. 849-856.
- R. G. Kulkarni, “Separation of even and odd terms for solving quartic equations”, Elemente der Mathematik, available online: https://ems.press/journals/em/articles/online-first, DOI: 10.4171/EM/564.
- R. G. Kulkarni, “Versatile cosine windows for harmonic suppression”, Signal, Image and Video Processing, Vol. 19, No. 13, November 2025, Article No. 1094. Link: https://rdcu.be/eFJ1F
- R. G. Kulkarni, “Splitting the coefficient for solving cubic equations” to appear in the forthcoming issue of The Mathematical Gazette.
- R. G. Kulkarni, “Electric field due to Hertzian dipole – an alternative approach” to appear in the forthcoming issue of Resonance – Journal of Science Education.
Publications
9- R. G. Kulkarni, "Design of SAW filters," presented in the National Symposium on Signal Processing with SAW devices, IIT Delhi, 1986.
- R. G. Kulkarni, "Windows for SAW filters requiring efficient harmonic suppression," presented in IMAPS-India National Conference, November 2004.
- R. G. Kulkarni and Deepa Das, "Novel electrode pattern for apodized IDT of SAW filter," presented in IMAPS-India National Conference, November 2004.
- R. G. Kulkarni, Deepa Das, Vijaya Sinha and Ajay Kumar, "Use of third harmonic in the design of narrowband SAW filter for regenerative payload of GSAT-4," presented in IMAPS-India National Conference, November 2004.
- .R. G. Kulkarni, "Hybrid microcircuits for nuclear instrumentation", presented in the DAE-BRNS National Symposium on Compact Nuclear Instrumentation and Radiation Detectors, March 2 - 5, 2005 (Defence Lab Jodhpur).
- V. Janardhana, S. Pamidighantam, R. G. Kulkarni and J. S. Roy, "Novel microstrip distributed RF MEMS phase shifters for phased array application" presented in MEMSWAVE 2007, Barcelona, June 26 - 29, 2007.
- R. G. Kulkarni, "Unified method to solve polynomial equations of any degree", presented in National Conference on Mathematical Foundations of Coding, Complexity, Computation & Cryptography, July 20 - 22, 2006, Indian Institute of Science, Bangalore.
- .R. G. Kulkarni, "On the solution to decic equations", presented in 22nd Annual Conference of Ramanujan Mathematical Society, June 6 - 8, 2007, National Institute of Technology Karnataka, Surathkal.
- R. G. Kulkarni, "A new method for solving quartics", presented in RMIT-2009 (Ramanujan Rediscovered) International Conference, June 1- 5, 2009, IIIT Bangalore
Teaching
2Education
3-
Ph.D.IIT Kharagpur1998
-
M.Tech. (EE)IIT Madras1982
-
B.E. (ECE)Karnatak University1979
Experience
2-
Distinguished ProfessorPES University2014 – current
-
Dy. Engr to Sr. DGMBharat Electronics1982 – 2014
Achievements
5- # Received Raksha-Mantri Award in 2013 for development of missile-electronics modules. # Awarded two patents on the design of Surface-Acoustic-Wave filters. # Invented several signal processing window functions.
- Won BEL R & D Excellence Award in 1989 for development of SAW filters
- Won BEL R & D Excellence Award in 2011 for development of signal conditioner HMCs for DRDO's missile telemetry projects
- Received outstanding educator award for the year 2023 from IEEE AP/MTT Society Bangalore chapter for the outstanding contribution to the antenna/microwave education.
- Received Protsahan Awards for the years 2021-22 and 2022-23 for the journal paper publications in the field of communication engineering from the IEEE COmSoc Bangalore chapter.
Responsibilities
1- Guide for research scholars; Review Panel Head for B. Tech. and M.Tech. Projects.