NONNBREAK WAVE FEED SWITCHING UNIT

摘要

PURPOSE:To perform non-break wave feed by arranging a hybrid circuit near an antenna and setting one side of main feeders to a stop state normally and switching feeders to an auxiliary tansmission signal source as required. CONSTITUTION:Since transmitters 11 and 12 and main feeders 13 and 14 are so constituted that they may be used in pairs such as 11-13 and 12-14, only one of main feeders 13 and 14 which is paired with the using transmitter performws transmission power supply, and the other stops. Then, hybrid circuit 15 which is equivalent to the conventional system in respect to the feed for a phase difference feed antenna and phase difference adjustment element 16 are arranged near antennas 17 and 18. By this constitution, the feeder switching which cannot be performed conventionally unless broadcasting is interrupted can be performed without broadcast interrupt by switching transmitters 11 and 12 instantaneously.