Waveguide to microstrip coupler wherein microstrip carries D.C.

Details Waveguide to microstrip coupler wherein microstrip carries D.C. Waveguide to microstrip coupler wherein microstrip carries D.C.

1981-05-06

1984-07-03

Gensler, Paul L.

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

333 35, 333247, H01P 5107

Patent

active

044582226

ABSTRACT:
An apparatus for coupling a waveguide structure to a printed circuit transmission line connected to a solid state device requiring a DC bias comprising: a hollow waveguide connector; a base mounted onto that connector and supporting the transmission line; a transition element, preferably a coupling ridge, for RF coupling the waveguide connector to the transmission line; a connecting means for feeding the DC bias voltage from an external bias network through the wall of the waveguide connector and the transition element to the transmission line. The connecting means, and the transition element are DC insulated from the other parts of the waveguide connector. The built-in DC bias eliminates the need for biasing networks, RF chokes, filters and DC blocks mounted on the printed circuit.

REFERENCES:
patent: 3737812 (1973-06-01), Gaudio et al.
patent: 3878486 (1975-04-01), Dean
patent: 3969691 (1976-07-01), Saul
"Millimeter-Wave IC Components Using Fine Grained Alumina Substrate", by H. Yatsuka et al., published 1980, IEEE-MTT-S, International Microwave Symposium Digest, pp. 276-278.
"A K-Band 1 Watt GaAs FET Amplifier", by Sane et al., published 1980, IEEE MTT-S, International Microwave Symposium Digest, pp. 180-182.
"20 GHz Band GaAs FET-Waveguide-Type Amplifier", by Hideki Tohyama, published 1977, IEEE MTT-S, International Microwave Symposium Digest, Jun. 21-23, 1977.

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