An Antenna System for China's Domestic Telecommunications Satellite

摘要

This paper describes a mechanical despun antenna system for China's domestic communications satellite.The system consists of three parts: an assembly of telemetry and command antennas,a communications antenna and a three channel rotary joint.The telemetry antenna and command antenna are bidisk antenna.The communication antenna is an offset elliptical paraboloid antenna with single feed horn. The three channel rotary joint is a concentric three coaxial line configuration.