Low-profile wideband mode forming network

Details Low-profile wideband mode forming network Low-profile wideband mode forming network

1993-05-21

1994-12-13

Gensler, Paul

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

333116, 333246, H01Q 326

Patent

active

053732995

ABSTRACT:
A low-profile multioctave frequency band microwave mode forming network is provided which includes a plurality of circuit layers having circuitry for receiving M feed signals which may provide M beams or modes of operation. Each circuit layer has a dielectric board with circuitry formed on top and bottom surfaces thereof and is sandwiched between top and bottom dielectric layers to form a tri-plate stripline circuitry. The circuit layers are dielectrically isolated from one another and further separated by conductive ground planes. The circuitry includes a plurality of couplers, phase shifters and transmissions lines which do not require transmission line cross-overs on any given surface. A plurality of right-angle RF interconnects are included for providing electrical connection to the circuitry. Output ports are provided for coupling said feed network to N elements of an antenna system.

REFERENCES:
patent: 3691563 (1972-09-01), Shelton
patent: 3740678 (1973-06-01), Hill
patent: 3777284 (1973-12-01), Schultz
patent: 3867759 (1975-02-01), Siefker
patent: 4424500 (1984-01-01), Viola et al.
patent: 4812792 (1989-03-01), Leibowitz
patent: 5132648 (1992-07-01), Trinh et al.
patent: 5134417 (1992-07-01), Thompson

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