Microstrip circulator structure

Details Microstrip circulator structure Microstrip circulator structure

1984-08-24

1986-08-05

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

333 33, H01P 1387

Patent

active

046045902

ABSTRACT:
A microstrip circulator having good matching properties in the millimeter communications band. Each of three microstrip lines is shaped to interface with a metalized ferrite element in such a manner as to provide both electrical impedance matching and a contact angle with the ferrite that satisfies the magnetic coupling requirements. The end of each microstrip includes a first arcuate portion contacting the ferrite over a relatively small contact angle, to provide tangential launching of energy and good coupling properties, and a second arcuate portion spaced apart from the ferrite to allow magnetic coupling and appropriate electrical impedance matching.

REFERENCES:
patent: 3085212 (1963-04-01), Clark et al.
patent: 3456213 (1969-07-01), Hershenov
patent: 3467918 (1969-09-01), Dunn et al.
patent: 3758878 (1973-09-01), Wainwright

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