A review of S-band antenna system G/T measurement technique

For any orbiting satellite mission, reliable communication link between satellite and ground receiving and transmitting station is very crucial as this is the only way satellite communicates with its operator. The key component within a ground receiving & transmitting station that enables this communication link is the antenna system. To ensure reliable communication, measurement of the antenna gain-to-noise temperature, G/T is often conducted in order to determine the performance of the antenna system. This measurement is even more crucial particularly for an antenna system that is responsible to provide telemetry, tracking and control to a satellite. In this paper, the measurement technique used to establish the G/T of ANGKASA S-band antenna system which includes the methodology and calculation of the figure is presented.