Electronics & Communications
+91-80-26721983 Extn 774

Dr. Raghavendra G. Kulkarni

Distinguished Professor

Raghavendra G. Kulkarni received B.E. in Electronics and Communication Engineering from Karnatak University in 1979, M.Tech. in Electrical Engineering from IIT Madras in 1982, and Ph.D. from IIT Kharagpur in 1998. He joined Hybrid Microcircuits (HMC) division of Bharat Electronics Ltd., (BEL) Bengaluru in 1982 as Deputy Engineer and developed several Surface Acoustic Wave (SAW) devices for commercial and defence applications. From 1998 to 2014, Dr. Kulkarni, in various capacities, 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---, one in 1989 for development of SAW filters used in TV receivers, and the second in 2011 for development of HMCs used in missile telemetry. 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 seventy 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. Dr. Kulkarni is reviewer for the scholarly journals---SIGNAL PROCESSING (Elsevier), Proceedings of NAS (Springer), PRIMUS (Taylor & Francis) and IEEE Transactions on UFFC. 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.


  • B.E. (ECE), Karnatak University 1979
  • M.Tech. (EE), IIT Madras 1982
  • Ph.D., IIT Kharagpur 1998


  • Distinguished Professor, PES University, 2014-current
  • Dy. Engr to Sr. DGM, Bharat Electronics, 1982-2014


  • # 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
  • For B.Tech. program: 1. Electromagnetic field theory, 2. Antenna Theory and Propagation, 3. Probability and Random Processes, 4. Network Analysis and Synthesis, 5. Mathematics for Electronics Engineers, 6. Microwave Engineering
  • For PG Program: 1. RF and microwave circuit design, 2. Applied Mathematics, 3. Antenna Theory and Design
  • Guide for research scholars; Review Panel Head for B. Tech. and M.Tech. Projects.

Research Interest

  • Following are some of my recent papers. # Simpler derivation of Bring radical, The Mathematical Gazette (Cambridge University Press), March 2021. # Alternative derivations for the fields inside a waveguide, Journal of Electrical Engineering (De Gruyter), April 2021. # Magnetic vector potential: A review, The Physics Educator (World Scientific), September 2020. # Synthesis of a new signal processing window [Electronics Letters, IET, UK], October 2019 ; # Design of windows for efficient spectral resolution and harmonic suppression [IEEE Signal Processing Magazine], July 2019, ; # A versatile cosine window for spectral resolution [Circuits, Systems, and Signal Processing, SPRINGER], May 2019, ; # Research fields: Surface Acoustic Wave (SAW) devices, 2. RF and microwave networks, 3. Electromagnetics and Antennas, 4. Signal processing, 5. Numerical methods, polynomials and polynomial transformations.
  • The paper "Solution of single-parameter Bring quintic equation" to appear in The Mathematics Student is available at:


  • 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