SPACE 2026 — IEEE SPace, Aerospace and defenCE Conference

Satellite TT&C – Glimpse

July 19, 2026 • 1 hours

Session Organizers

Prof. V.Mahadevan

Group Director (R), Communication Systems Group URSC, Bangalore | Sci.H (Retd.) ISRO, Professor, PESIT, BANGALORE

Overview

TT&C System onboard a Satellite is a very vital communication link providing:

  • Data regarding the health of various subsystem;
  • Receiving Command signals from Ground Stations
  • Ranging from any visible station


The antenna coverage is omnidirectional to take care of various orientation of the satellite during the initial phase of operation and curtailed on orbit if necessary.
The tutorial aims at providing a glimpse of various subsystem involved in the TT&C System and also provide some details about the actual system used. It is
emphasized that irrespective of the satellite mission TT&C System is mandatory and good knowledge about it is very essential.

Block diagram of the Transponder with some details and the antenna system commonly used would be highlighted.

Format: The session is about one hour with 50 minutes presentation and ten minutes for QA.

Target Audience: Students willing to take up satelite projects and starters to get an insight into this important system.

Speaker Biographies

Prof. V.Mahadevan

Shri. V. Mahadevan obtained his B.Tech (Hons) in Electronics & Communication from IIT Kharagpur and M.E. in Communication Engineering from IISc Bangalore. He joined ISRO Satellite Centre in the Communication Systems Group and contributed in the design and development of Antenna & Passive Systems flown in all the spacecrafts. One of the major contribution is in the development of Active Phased Array Antennas which was successfully flown and is being adopted for many future spacecrafts.

He was appointed as Associated Project Director for CATF ( Compact Antenna Test Facility) and the same was established in ISRO Bangalore in a record time. He held a number of posts in various satellite projects and finally appointed to the post of Group Director, Communication Systems Group, ISRO Satellite Centre, Bangalore. He retired on superannuation in April 2010 and is presently serving as Professor in the Dept. of Telecommunications at PESIT ( An autonomous Engineering College under VTU and UGC Delhi), Bangalore.


He received NRDC award from Govt. of India for his contribution on Handheld Antenna for Satellite Telephone, Team Award For Cartosat-2 Satellite from President of India, ISRO Award for Phased Array Antenna System, and IRSI-IETE 2007 Award for Contributions on Spacecraft Omni directional and Phased Array Antenna System. He holds two Patents, one Handheld Antenna System and the other on UltraLow Sidelobe Antenna. He is a Senior Member of IEEE, Life Member ASI (Astronautical Society of India) and Life Fellow Member IETE, Member IET and has published a number of papers in international and national journals.