Wave transmission lines and networks – Wave mode converters
Patent
1982-03-05
1985-02-05
Blum, Theodore M.
Wave transmission lines and networks
Wave mode converters
343756, 343781CA, 333212, H01P 117, H01Q 1302, H01Q 1919
Patent
active
044980612
ABSTRACT:
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 waveguide 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. The polarization converter is either directly integrated in the feeder waveguide or the polarization conversion is effected by coupling the waveguide modes into the microstripline circuit.
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patent: 3697898 (1972-10-01), Blachier et al.
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H. Wollenhaupt, "Kompakte Cassegrain-Antenne fur kleine Satelliten-Bodenstationen" Nachrichtentechnische Zeitschrift NTZ, vol. 34, (1981), pp. 576-577.
Milcz Wilhelm
Morz Gunther
Barron Jr. Gilberto
Blum Theodore M.
Licentia Patent-Verwaltungs-GmbH
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