Dr. Punithavathi D

Associate professor

Dr Punithavathi D joined the Department of Electronic and Communication Engineering, RUAS as an Associate Professor in September 2014. The courses she handles include Digital Communication, Digital Signal Processing, Microprocessor and its applications, Embedded Systems, Micro controllers, Microwave Engineering, Electric circuits, Advanced Digital Signal Processing, Analog and Mixed Signal Circuit Design and Nanoelectronics. Having helped undergraduates and MS students in the past, she is now guiding PhD aspirants in their thesis preparation.
She went to Ghent University, Belgium where she was a Doctoral Researcher and Teaching Assistant (2008 — 2013). She has filed patents for Method, System and Apparatus for Image Rejection in Radio Receivers” and Method and Device for Generating a QPSK Signal” (Indian Patent) in 2015.


  • Ph.D

    Ghent University ,Belgium

  • M.E in Applied Electronics

    Anna University, Tamil Nadu

  • B.E in Electronics and Communication Engineering

    Bharathiar University


Total years of Experience :

21 years

Academic Experience:

  1. Lecturer in Department of Electronics and Communication Engineering — Nanjappa Institute of Technology, Coimbatore, Tamil Nadu — 2 Years 9 Months (Jun 1997 — Feb 2000)
  2. Lecturer in Electronics and Communication Engineering ‑Dr. Mahalingam College of Engineering and Technology, Pollachi, Tamil Nadu — 2 Years 5 Months (Mar 2000 — Jul 2002)
  3. Lecturer in Department of Mechatronics Engineering ‑Sri Krishna College of Engineering and Technology, Coimbatore, Tamil Nadu — 3 Years 4 Months (May 2004 — Aug 2007)
  4. Senior Lecturer in Department of Electronics and Communication — Dr.N.G.P. Institute of Technology, Coimbatore. Tamil Nadu — 9 Months (Sep 2007 — May 2008)
  5. Associate Professor in Department of Electronics and Communication Engineering — M S Ramaiah University of Applied Sciences, Bengaluru 6 Years 6 Months (Sep ‑2014 — Till Date)

Research Experience:

  1. Doctoral Researcher and Teaching assistant — Ghent University-imec, Ghent, Belgium — 5 Years 6 Months (June 2008 — Oct 2013)

Training Experience

  • VHDL programming basic and Advanced
  • FPGA synthesis
  • verification and Implementation

Research Interest :

  • VLSI, Embedded systems
  • Neuromorphic electronics
  • Nano electronics

Research Expertise :

  • High speed architectures implementation on FPGA
  • Board level and IC design
  • Transmitter and receiver architectures for communication and biomedical applications

Ph.D. Dissertation:

Data acquisition and Digital Signal Processing for Electron Paramagnetic

Resonance (EPR) Spectrometers.

National Conference Papers:

  1. SunilKumar.T and Punithavathi Duraiswamy (2019),” Optimization of Kalman Filter for Target Tracking Applications, 2nd National Conference on Multidisciplinary Design Analysis and Optimization” (NCMDAO 2019),Mar 23 – 24, Bangalore India
  2. D. Punithavathi and F.Gajendran,” A Simple Hard Disk Head Controller”, National System Conference (NSC 2007), Oral, Dec. 2007, Manipal, India.
  3. F.Gajendran and D. Punithavathi ‚“IPDF Controller (Integral Controller with PD in the Minor Feedback Loop)”, Control Instrumentation System Conference (CISCON 2006), oral, Nov. 2006, Manipal, India.
  4. D.Punithavathi and F.Gajendran, Design of Polyphase QMF using CSD Coefficients with an Application to Sub-band Speech Coding”, National conference on Signals, Systems & Security — 2006 (NCSSS 2006), Feb. 2006, oral, Sathyamangalam, India.
  5. D.Punithavathi and F.Gajendran,” VHDL Modeling and FPGA Implementation of Stepper Motor Controller”, Control Instrumentation System Conference (CISCON 2005), oral, Nov. 2005, Manipal, India.

International Conference Papers

  1. P.S. Sameer Ahamed and Punithavathi Duraiswamy (2019), Virtual Sensing Active Noise Control System with 2D Microphone Array for Automotive Applications” “ 6th International Conference on Signal Processing & Integrated Networks”, SPIN 2019, Mar 7 – 8, Noida, India
  2. Arbin Akram and Punithavathi Duraiswamy (2018), Dynamic Current Injection Technique for Improving Linearity and Gain in Gilbert Cell Mixer”, INDICON, Dec 16 – 18, Coimbatore, India.
  3. Suhas. V and Punithavathi Duraiswamy (2018),“Edge Combining Ring VCO with Wide Tuning Range for Microwave Communication Systems”, INDICON, Dec 16 – 18, Coimbatore, India.
  4. Rahul .D.S, Sudarshan. S. K, Rajesha. K. J, Punithavathi Duraiswamy and Shankar. K. Selvaraja (2018),“Experimental Studies on 7‑bit PWM based Visible Light Communication for Text Data Transfer Applications”, Photonics 2018, Dec 13 – 15,Delhi, India.
  5. Satish Kumar G. D, Raghu Srinivas, Punithavathi Duraiswamy (2018) Efficient Implementation of Low Mismatch IQ Signal Generator Based on 90◦ Differential Phase Shifting”, INDICON, Dec 16 – 18, Coimbatore, India.
  6. Suhas. V and Punithavathi Duraiswamy (2018),‘Frequency Doubling Technique for Ring Oscillator based VCO for Microwave Applications”, IEEE International Microwave and RF Conference (IMaRC), Nov 28 – 30, Kolkata, India.
  7. Raghu Srinivas and Punithavathi Duraiswamy (2018),” High Gain and Wideband CMOS Active Balun LNA in 0.18Um Technology for Ka-Band Applications”, INDICON, Dec 16 – 18, Coimbatore, India.
  8. Raghu Srinivas, Soumya Sunny and Punithavathi Duraiswamy (2018), High Performance Three-Stage 30GHz CMOS Single-to-Differential LNA”, INDICON, Dec 16 – 18, Coimbatore, India.
  9. Krishna. R and Punithavathi Duraiswamy (2018),” Simulation study and comparison of various SRAM cells in 32nm CMOS Technology” ICPSPCT, Jul 18 – 20, Bangalore, India.
  10. Anusha Udaykumar, Raghu Srinivas and P. Duraiswamy (2018),”30-Gb/s Low Power Inductorless CMOS Transimpedance Amplifier for Optical Receivers” 3rd International Conference on Microwave and Photonics (ICMAP), Feb 9 – 11 Dhanbad, India.
  11. Raghu Srinivas and Punithavathi Duraiswamy (2017) “ High Gain and Low Noise Figure Single-to-Differential CMOS LNA for Ka-Band Communication System”, IEEE International Microwave and RF Conference (IMaRC), Dec 11 – 13, 2017, Ahmadabad, India.
  12. Mohan Kumar, Y. N. and Punithavathi Duraiswamy (2016) On the Optimization of GaN Schottky Diode Rectifier Circuit Topologies for High Efficiency Wireless Power Transmission, Asia Pacific Microwave Conference, 5 – 9 Dec, 2016.
  13. Arpitha, R., Divya Kiran, Sitaram Gupta, V. S. N. and Punithavathi Duraiswamy, D. (2016) FPGAGSM based Gas Leakage Detection System, 13th International IEEE India Conference INDICON 2016, Bengaluru,India.
  14. Akshay.A, Divya Kiran, Chandramohan. P and Punithavathi Duraiswamy, Design and Analysis of Phase Locked Loop for low power wireless applications, 2016 Conference on Emerging Devices and Smart Systems (ICEDSS) 4 – 5 March 2016, India.
  15. Punithavathi Duraiswamy and Vandewege. J,” Switching Circuit for RF col ring down time reduction in EPR spectrometer, 2015 IEEE International Microwave and RF Conference (IMaRC), Dec 10 – 12, 2015, Hyderabad, India
  16. Punithavathi Duraiswamy, FPGA based digital signal processing for EPR spectrometer with an application to MRI”, poster 12th FEA Ph.D.Symposium, pp, 2011.
  17. D. Punithavathi and F. Gajendran, High Speed Architecture for the Design of QMF Bank with CSD Coefficients”, International Conference onSystemics, Cybernetics and Informatics (ICSCI 2006), oral, Jan. 2006, Hyderabad, India. 

International Journal Papers

  1. P.S. Sameer Ahamed and Punithavathi Duraiswamy,” Mathematical modelling and simulation of engine noise for automotive applications”, Noise control Engineering Journal, Vol.65 (1).pp 33 – 41, Feb 2017.
  2. Punithavathi Duraiswamy, Li. X, Bauwelinck.J. and Vandewege. J, Vaes.P, Teughels.S,” Synchronous delay based UWB pulse generator in FPGA”. IEICE Electronics Express Vol.9, 2012.
  3. Punithavathi Duraiswamy, Bauwelinck.J. and Vandewege. J,” Efficient implementation of 90 degree phase shifter in FPGA”.EURASIP Journal on Advances in Signal Processing. Vol.32, 2011.
  4. Punithavathi Duraiswamy, Li, X, Bauwelinck.J. and Vandewege. J,” Build a UWB pulse generator on an FPGA”. EDN. Vol. 56: (12) 54 – 55; 2011.


  1. Punithavathi Duraiswamy Method, System and Apparatus for Image Rejection in Radio Receivers”, Indian Patent Application:1440/CHE/2015, March 21, 2015.
  2. Punithavathi Duraiswamy, Divya Kiran, Naveen R Method and Device for Generating a QPSK Signal”, Indian Patent Application : 6814/CHE/2015, December 21, 2015.

Magazine Articles

  1. Punithavathi Duraiswamy,” Anti-symmetric FIR filter slashes resource use“, EDN. Design center, Dec 2014.
  2. Punithavathi Duraiswamy, Antenna ring-down time measurement for medical applications”. EDN. Medical Design Centre, Aug 2014.

  • IEE


  • ISTE


  • IEI


  • AMIE