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3478, 14th Main, HAL 2nd Stage, Bengaluru - 560008
9845106136
VS/TC01
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.
Educational Qualification
| Technical / Management / Specialised degree |
Institutional Details | Branch / Program | CGPA / Scores / Grades |
Year |
|---|---|---|---|---|
| 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 NetworkingProfessional Certifications
- Senior member IEEE.
- Senior member of Technical Staff, Texas Instruments.
- Two US Patents assigned to Texas Instruments and Two Indian Patents.
Unique Expertise
- Development of novel methods to enhance gain of Antennas and rapidly estimate Direction of arrivals for 4G, 5G and WiFi applications.
- 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.
- Development of unique methods to test wirelines and power lines using modems from one end and extract their topology.
Consultancy/Execution Area
- Modem Technology, Smart Antenna Array Signal Processing related to wireline, Powerline , WiFi, LTE Advanced communications.
- 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 |
