Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1987-09-24
1990-02-27
Gensler, Paul
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333 26, 333246, H01P 522
Patent
active
049049666
ABSTRACT:
A suspended substrate rat-race coupler utilizes an elliptic configuration of the usual circular rat-race coupler on a circuit card positioned within below cut-off suspended substrate housing channels. The channels within the suspended substrate housing are positioned to receive the arms of the elliptical rat-race coupler. The longitudinal axis of two of the suspended substrate channels are offset with respect to each other to accommodate the rat-race arms and are positioned either on the same side of a primary suspended substrate channel or on opposite sides of the primary suspended substrate channel. Connections to the four ports of the rat-race can thus be made without disrupting the TEM propagation mode within the suspended substrate device.
REFERENCES:
patent: 2831168 (1958-04-01), Smoll
patent: 2854645 (1958-09-01), Arditi
patent: 2959751 (1960-11-01), Budenbom
patent: 3158824 (1964-11-01), Larsen et al.
patent: 3560893 (1971-02-01), Wen
patent: 3621478 (1971-11-01), Johnson
patent: 4303900 (1981-12-01), Tourneur
patent: 4383227 (1983-05-01), de Ronde
Suspended Substrate Airstrip Cuts Microwave System Losses, Design Engineeg (Gr. Brit.), Oct. 1976, p. 13.
Fendelman Harvey
Gensler Paul
Keough Thomas G.
The United States of America as represented by the Secretary of
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