MULTIPLE BAND FOLDING TYPE ANTENNA

摘要

PURPOSE: To reduce cost when an antenna is shot by giving service to plural C-band channels and one S-band channel with one antenna. CONSTITUTION: The antenna 20 is constituted of a main reflector 24, an S-band feeder 28, a C-band feeder 30 and a sub-reflector 26 arranged between both feeders at the front of the main reflector. The C-band feeder operates at two channels different in frequencies. The both reflectors can be folded into a satellite with the turning of an arm connected by hinges 50 and 52. The sub-reflector can be folded into the feeder 30 and the main reflector can be folded into the feeder 28 and the folded sub-reflector.