Microwave receiver for circularly polarized signals

Details Microwave receiver for circularly polarized signals Microwave receiver for circularly polarized signals

H - Electricity

01

P

343/103, 351/28

H01P 1/17 (2006.01) H01Q 13/02 (2006.01) H01Q 19/19 (2006.01)

Patent

CA 1179753

ABSTRACT OF THE DISCLOSURE A receiver for counterclockwise and clockwise circularly polarized microwave signals of the type comprising a receiving antenna with a feeder system, a polarization converter, a polarization filter and a circuit for converting the microwave signals of both polarization directions from the high frequency to the intermediate frequency plane. A portion of the feeder wave- guide belonging to the feeder system of the receiving antenna is designed as a bandpass filter which is effective for both polarization directions. A microstripline substrate, which carries the frequency converting circuit, is connected with the output of the feeder waveguide and is provided with an arrangement for coupling in the energies of the waveguide modes of both polarization directions are disposed on said substrate. The polarization converter is either directly integrated in the feeder waveguide or the polar- ization conversion is effected by coupling the waveguide modes into the microstripline circuit.

397713

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