Microstrip circulator with ferrite and resonator in printed circ

Details Microstrip circulator with ferrite and resonator in printed circ Microstrip circulator with ferrite and resonator in printed circ

1986-06-30

1987-11-03

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333238, H01P 1387

Patent

active

047045884

ABSTRACT:
A microstrip circulator is disclosed in which a resonator (311) is metalized on one layer (309) of a multilayer printed circuit board (301) and a ferrite element (305) is disposed in another layer (303) of the circuit board. Input/output port termination mismatch due to port lead misalignment is eliminated and ferrite to resonator coupling is accomplished in a simple and repeatable manner.

REFERENCES:
patent: 3334317 (1967-08-01), Andre
patent: 3359510 (1967-12-01), Geiszler
patent: 3636479 (1972-01-01), Hartz, et al.
patent: 3733563 (1973-05-01), Poirier
patent: 4016510 (1977-04-01), Hodges, III et al.
patent: 4101850 (1978-07-01), Dworsky et al.
patent: 4359701 (1982-11-01), Aoki
patent: 4496915 (1985-01-01), Mathew et al.

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