Feeder link antenna

Details Feeder link antenna Feeder link antenna

H - Electricity

01

Q

H01Q 15/16 (2006.01) H01Q 3/20 (2006.01) H01Q 5/00 (2006.01) H01Q 13/02 (2006.01)

Patent

CA 2202843

A steerable feeder link antenna is formed of a steerable reflector and a stationary feed horn assembly. A novel feed horn assembly allows dual mode transmit and receive functions for circularly polarized microwaves. The feed horn assembly includes a four arm turnstile junction coupled to a feed horn through the feed horn's side wall to couple transmit frequencies and an axially coupled transmission line for the receive frequencies. Each turnstile junction arm incorporates chokes for the receive frequencies. The transmission line's cut off frequency is above the transmit frequency to prevent transmit signals from interfering with receive signal receivers.

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