Varun D

Dr. Varun D

Assistant professor|Faculty of Engineering and Technology, Department of Electronics and Communication Engineering


Dr. Varun D works in the Department of Electronics and Communication Engineering as an Assistant Professor. Having acquired a Master of Science (Engineering degree) in Signal Processing and Communication Technologies from Coventry University, he brings a total work experience of about 9 years in the academic and research fields. The modules that come under his purview as an educator include Modelling and Simulation of Electronic Circuits, Digital Communication, Mobile Communication, Communication Networks, Antenna and RF Engineering, DSP Architectures and Application Development. In addition, he also helps MS students with their thesis work.

Qualifications

  • Ph.D in RF Front End, Antenna and Microwave Systems

    Ramaiah University of Applied Sciences, Bangalore

  • M.Sc. (Engg.) in Signal Processing and Communication Technologies

    M S Ramaiah School of Advanced Studies, Coventry university, Bangalore

  • B.E. in Telecommunication Engineering

    SJCIT, Chikkaballapur, Visvesvaraya Technological University

Experience

Total years of Experience :

9+ Years

Academic Experience

  1. Assistant Professor in Department Electronics and Electrical Engineering — MS Ramaiah School of Advanced Studies — Bangalore — 3 Years (June 2011 to July 2014)
  2. Assistant Professor in Department of Electronics and Communication Engineering — Ramaiah University of Applied Sciences — Bangalore — 6+ Years (July 2014 to Till date)

Research Interest

  • Microwave Systems
  • Antenna Design and Reconfigurable Antennas
  • Conformal Antenna Arrays and Beamsteering
  • RF Front End Design and Reconfigurable System
  • RADAR Front End Development (Airborne Electronic Warfare)
  • ECM and ECCM Systems
  • Communication Systems
  • Computational Electromagnetics

Research Expertise

  • Microwave Communication
  • Antenna Development
  • RF Front End 
  • Communication Systems
  • Signal Processing
  • Computational Electromagnetics
  • ECM Systems
  • Antenna Arrays

Research Grants

  • CAIR, Shooter Localization for Soldier Ad‐​hoc networks
  • ADA, Design and Development of Antenna Beamforming
    System for GHATAK (IUSAV)
  • SIGMA, Design and Development of a Long Range Video
    Transmitter
  • Naval Antenna development, BEL
  • LCA TACAN Antenna development and Indigenization, HAL/ADA
  • High Power RF Attenuator for ELTA pods, 12BRD, Air Force Base
    Repair Depot (In process)
  • RAM Air Temperature Sensor (RATS), 12BRD, Air Force Base
    Repair Depot (In process)

Keywords

  • Microwave Systems
  • Antenna Arrays and Beamsteering
  • Computational Electromagnetics

Ph.D. Dissertation:

Simulation and Analysis of Wide Band Cognitive Radio Architecture with Performance Enhanced Balanced LNA and Improved Image Rejection

  1. Varun, D., Mazumdar, D., & Kadambi, G. R. Second order compensation scheme for Haven’s technique to annul amplitude and phase mismatch for quadrature circuits. Analog Integrated Circuits and Signal Processing, 1 – 11.
  2. Varun, D., & Kadambi, G. R. (2016, December). Mixer architecture with improved image rejection and interference mitigation for cognitive radio. In 2016 IEEE Annual India Conference (INDICON) (pp. 1 – 5). IEEE.

International Conference Papers:

  1. Karthik, O. S., Varun, D., & Ramasangu, H. (2016, December). Localized Harris-FAST interest point detector. In 2016 IEEE Annual India Conference (INDICON) (pp. 1 – 6). IEEE.
  2. Shivaganga, M. S., Mekkayil, L., Ramasangu, H., & Varun, D. (2016, December). Two-stage feature extraction algorithm using linear and nonlinear transformation for hyperspectral image classification. In 2016 IEEE Annual India Conference (INDICON) (pp. 1 – 6). IEEE.
  3. Nagulpelli, A. S., & Varun, D. (2018, April). Hexagonal Shaped Magnetically Coupled EBG for X‑Band Antenna Bandwidth Enhancement. In 2018 3rd International Conference for Convergence in Technology (I2CT) (pp. 1 – 6). IEEE.
  4. Nagulpelli, A. S., & Varun, D. (2019, March). Bandwidth Enhanced UHF-Discone Antenna for FOPEN Radar. In 2019 IEEE 5th International Conference for Convergence in Technology (I2CT) (pp. 1 – 5). IEEE.

National Journal Papers: 

  1. Varun, D., Mazumdar, T., & Kadambi, G. R. DESIGN AND DEVELOPMENT OF A NOVEL ARCHITECTURE FOR MULTISTAGE RF DOWN-CONVERSION WITH IMPROVED IMAGE REJECTION AND NON-LINEARITY CORRECTIONS FOR 1 – 10 GHZ RANGE.

International Journal Papers:

  1. Mahesh, N. S., & Varun, D. (2020). Design and Development of Metamaterial Based High Performance Microstrip Antenna. In Emerging Trends in Photonics, Signal Processing and Communication Engineering (pp. 115 – 121). Springer, Singapore.
  2. Varun, D. (2014). Design and Analysis of 2 GHz 130nm CMOS Cascode Low Noise Amplifier with Integrated Circularly Polarized Patch Antenna. Circuits and Systems: An International Journal (CSIJ), 1(3), 55 – 65.
  3. Sridhar, C. S., ShashiKumar, R., Kumar, S. M., Sridhar, M., Varun D. (2010). E‑Speed Governors for Public Transport Vehicles. arXiv preprint arXiv:1005.4290.

Patents

  1. Govind R. Kadambi , Varun D, B.R.Karthikeyan and Sandhya Chilukuri A Module for Direct Communication between Black Box of an Aircraft with Air Traffic Controller and Satellite”, Indian Patent Application: 6815/CHE/2015, December 21, 2015.
  2. Govind R. Kadambi, Sandhya Chilukuri, Varun D and B.R.Karthikeyan Horizontally and Vertically Polarized Omni Directional Planar Antenna for Polarization Reuse”, Indian Patent Application: 6874/CHE/2015, December 23, 2015. 
  3. Govind R Kadambi, Dipayan Mazumdar and D. Varun Quadrature Circuit with Reduced Amplitude and Phase Mismatch”, Indian Patent Application: 7128/CHE/2015, December 31, 2015. 
  4. Varun, D. and Peruvayila Vikram A Dual-Band Dual Polaraized Antenna with Beam Steering” Indian Patent Application: 201741046750, December 27, 2017.

  1. Best Final Year B.E. Project Titled E‑Speed Governors for Public Transport Vehicles”
  2. Silver Medal for best thesis in M.Sc. [Engg.]
  3. Gold Medal in M.Sc. [Engg.] (SPCT)
  4. Received Letter of Appreciation from Indian Air Force 12BRD for the development of HPRF Adapter for ELTA pods. 
  5. Establishment of Antenna and Microwave Labs
  6. Completed Sanskrit Exams from Sura Saraswathi Sabha