Wave transmission lines and networks – Plural channel systems – Having branched circuits
Patent
1987-10-23
1989-01-10
Gensler, Paul
Wave transmission lines and networks
Plural channel systems
Having branched circuits
333245, H01P 518
Patent
active
047976438
ABSTRACT:
A microwave crossover by which an electromagnetic wave can crossover from one waveguide to another waveguide is formed completely within a planar structure having two hybrid couplers arranged in tandem with output ports of the first coupler connected to input ports of the second coupler. Each coupler is formed of an electrically conductive housing and two electrically conducting bars disposed therein and insulated therefrom. The bars are disposed in a common plane and are equally spaced from top and bottom walls of the housing. A central portion of each bar is angled relative to end portions of the bars to permit a crossing over of the bars at the central portions thereof. Each of the central portions is formed with a notch which engages with the notch of the other bar while maintaining a gap therefrom, the notches permitting the crossover to occur in the foregoing plane. Ends of the bars protrude through openings in the housing in the form of coaxial transmission lines. The crossing of the bars has the effect of a twist of central conductors of the coaxial lines resulting in a relocation of the ports of the coupler such that the two input ports are on an input side of the coupler, and two output ports are on an output side of the coupler. This arrangement of the ports permits the connection of two couplers in tandem to provide for the planar configuration of the microwave crossover.
REFERENCES:
patent: 3626332 (1971-12-01), Barbatoe
patent: 3654570 (1972-04-01), Thomas
patent: 4532484 (1985-07-01), Tajima et al.
patent: 4539534 (1985-09-01), Hudspeth et al.
Wong Mon N.
Wong Samuel S.
Gensler Paul
Hughes Aircraft Company
Karambelas A. W.
Meltzer M. J.
Mitchell S. M.
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