A Parabolic Reflector Antenna For C Band Satellite Telemetry Reception During Launch Phase

A Circular polarized parabolic reflector antenna with prime focus axial mode helix feed for C Band satellite telemetry reception from communication satellites in 3.6 GHz to 4.2 GHz frequency range during launch phase is presented. The antenna was designed, simulated, fabricated and tested. The fabricated antenna has 14 dB return loss bandwidth of 850 MHz from 3.6 GHz to 4.45GHz and simulated peak gain greater than 29 dBi with beamwidth greater than 4 deg over entire band. The fabricated antenna is deployed at Satish Dhawan Space center (SHAR). First time, the realized antenna was successfully used during GSLV F-14 mission.