Simultaneous X/Ka-band feed system for large earth station SATCOM antennas

A dual X/Ka-band feed system suitable for large Earth Station SATCOM antennas has been developed. The feed system is suitable for simultaneous four-port operation over both X- and Ka-band and supports monopulse tracking at Ka-band. Secondary radiation patterns on a representative 13m class reflector have been calculated and compared with the requirements for WGS.