Waveguide directional coupler with multiple coupled outputs

Details Waveguide directional coupler with multiple coupled outputs Waveguide directional coupler with multiple coupled outputs

1987-06-29

1988-12-20

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333137, H01P 518

Patent

active

047927704

ABSTRACT:
A reduced size waveguide directional coupler assembly includes a first rectangular waveguide which is adapted to receive signal at an input port. A conductive septum parallel with a broad wall of the rectangular waveguide divides the signal into two portions flowing in first and second channels within the first waveguide. The septum may be centered between the broad walls, in which case the two signal portions and channel dimensions are the same, or the septum may be off-center, resulting in dissimilar amplitudes of the two signal portions. The coupler also includes a second waveguide. Branch waveguides or other coupling apertures open from the first channel into the second waveguide. That energy not flowing to the second waveguide from the first channel may be routed to an independent output port, or may be recombined with the energy flowing in the second channel and routed to a combined output port. The coupler may include a third waveguide coupled by branch waveguides or other coupling apertures to the second channel. That energy not coupled from the second channel to the third waveguide may be coupled to an independent output port, or may be recombined with the residual energy from the first channel at a combined output port. A load may be coupled to the septum to dissipate unbalanced power.

REFERENCES:
patent: 2558385 (1951-06-01), Purcell
patent: 2580678 (1952-01-01), Hansen et al.
patent: 2730677 (1956-01-01), Boissinot et al.
patent: 3044026 (1962-07-01), Patterson
patent: 3175171 (1965-03-01), Reindel
patent: 3758879 (1973-09-01), Beguin et al.
patent: 3958192 (1976-05-01), Rootsey
patent: 4223283 (1980-09-01), Chan
Antenna Engineering Handbook, by Jasik, published by McGraw-Hill, first edition, 1961, pp. 30-19.

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