3478, 14th Main, HAL 2nd Stage, Bengaluru - 560008 9845106136


Dr. S. Ravishankar

Visiting Professor, Dept of ECE, RV College of Engineering

20 years, Communication & Networking, RF, 4G, 5G, Wireless Communication, Satellite Communication, Modems & RF, Agile Antennas

First 20 years at Transmission R&D, ITI BLR honed my development skills by working on single carrier Modems and RF for Satellite and wireless applications. Subsequent 12 years was spent on developing state of the art Multicarrier Modems for DSL and cellular applications at Texas Instruments. In a stint in Academics thereafter, we developed well appreciated and published hybrid analytical techniques in state-of-the-art RF, that we are still trying to push into a product.


    3478, 14th Main, HAL 2nd Stage, Bengaluru - 560008 9845106136


Educational Qualification

Technical / Management /
Specialised degree
Institutional Details Branch / Program CGPA / Scores /
PhD IIT Madras Electrical Engg - 1986
MTech IIT, Kharagpur Microwave and Radar, ECE 73% First Class 1980
BE(Hons) BITS, Pilani Electronics 9.1/10 Distinction 1978

Domain Expertise

Core Competency
Communications (Modems and RF for wireline, WiFi and LTE Advanced)
Complimentary Competency
IIOT and Vehicular Communications Networking

Professional Certifications

  1. Senior member IEEE.
  2. Senior member of Technical Staff, Texas Instruments.
  3. Two US Patents assigned to Texas Instruments and Two Indian Patents.

Unique Expertise

  1. Development of novel methods to enhance gain of Antennas and rapidly estimate Direction of arrivals for 4G, 5G and WiFi applications.
  2. Development of unique methods to rapidly respond to sudden interferences in modem communication links specifically Rapid Rate Adaptation for DSL, 4G, 5G and WiFi applications.
  3. Development of unique methods to test wirelines and power lines using modems from one end and extract their topology.  

Consultancy/Execution Area

  1. Modem Technology, Smart Antenna Array Signal Processing related to wireline, Powerline , WiFi, LTE Advanced communications.
  2. Networking Video Cameras and sensors to Network Aggregation center both on SCADA and IOT.

Professional Experience

Proficiency in Software/ product/ tools

EM flow solver tools like HFSS, FEKO, apart from Matlab and C

Domain Experience
(Total number of years/ Details of last 5 years)
Key Areas of Expertise Contribution/ Role Remarks
Antenna Array Steering Lens based Antennas and Array signal Processing for WiFi, 4G and 5G and vehicular applications Arrays radiating through lenses and associated beam steering Shaped sandwich lens design and analysis, with squint compensated beam steering At RV College of Engg for DRDO and ISRO funded projects
Modems Multicarrier Signal Processing Chains for DSL, 4G and 5G applications Rate Adaptation, Equalizers, Line Testing Rapid Rate readaptation, single ended loop profiling At Texas Instruments and Centillium Inc
RF Antennas and Receive RF Chain Offset fed Antennas, and Receive chain modules Development of offset Antennas and LNA to meet tight G/T constraints At ITI Ltd, Bengaluru 1979 - 1999
Modems Single Carrier Processing Chain Multiplexing functions, Equalizers Algorithms and Code for Hardware Platforms At ITI Ltd, Bengaluru 1979 - 1999

Proficiency in Software/ product/ tools

Exposure to Texas Instruments and Centillium SOC platforms

Domain Experience Areas of Expertise Contribution/ Role Remarks
Industrial IOT and Vehicular Communications Networking 12 Modem Interface protocols to Camera devices and sensors. Transporting protocols to central switch and Network Command Centers.

Firmware Architecting and scheduling 

At Texas Instruments for DSL and 4G Cellular chipsets
Papers published Conference Other key contributions
IEEE Antennas and Propagation Society APS URSI (5) IMARC (1) Part of my work at ITI and at RVCE
IEEE Communications Society ICC and others  Part of my work at RVCE for funded projects
IEEE Transactions on Antennas and Propagation (4) Part of my Doctoral Thesis