Stripline quadrature coupler

Details Stripline quadrature coupler Stripline quadrature coupler

1976-06-01

1978-02-21

Gensler, Paul L.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 84M, H01P 518

Patent

active

040755819

ABSTRACT:
The coupler accepts four independent RF input signals, divides each input into four equal parts, and applies each part to one of four adjoining output ports. Each input signal divided part is phase shifted a multiple of 90.degree. whereby the output ports, taken in the proper order, are in phase quadrature.
The novel coupler comprises four hybrid couplers, all of which are fabricated on a dielectric substrate. The hybrid couplers are located on the substrate in a unique interleaved configuration whereby intercouplings are formed between selected hybrid couplers. The interleaved construction results in the electrical length of all intercouplings being controlled and, preferably, all are the same length.

REFERENCES:
patent: 3146413 (1964-08-01), Butler
patent: 3345585 (1967-10-01), Hildebrand
patent: 3883828 (1975-05-01), Cappucci
patent: 3988705 (1976-10-01), Drapac
patent: 3996533 (1976-12-01), Lee

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