Four-post quadrature coupler suitable for monolithic implementat

Details Four-post quadrature coupler suitable for monolithic implementat Four-post quadrature coupler suitable for monolithic implementat

1990-12-03

1992-07-07

LaRoche, Eugene R.

Wave transmission lines and networks

Plural channel systems

Having branched circuits

333118, H01P 518

Patent

active

051286386

ABSTRACT:
A method for creating a four-port quadrature coupler suitable for monolithic implementation which involves connecting two ports of a balun, suitable itself for implementation in monolithic microwave integrated circuits, to two separate phasing networks. A device exhibiting the proper four-port quadrature coupler characteristics within a MMIC structure results, with wide bandwidth exceeding one octave.

REFERENCES:
patent: 3781718 (1973-12-01), Gittinger
patent: 4330868 (1982-05-01), Hallford
patent: 4893098 (1990-01-01), Seely
patent: 4992761 (1991-02-01), Seely
patent: 5023376 (1991-06-01), Staudinger
patent: 5045821 (1991-09-01), Staudinger

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