Wide band microwave isolators

Details Wide band microwave isolators Wide band microwave isolators

1978-07-26

1979-05-01

Gensler, Paul L.

Wave transmission lines and networks

Coupling networks

Nonreciprocal gyromagnetic type

333240, H01P 136

Patent

active

041526775

ABSTRACT:
In a surface wave isolator consisting of two gyromagnetic slabs a conductive strip between said slabs, means to establish a magnetizing field within said slabs, a two part load is associated side by side with said slabs and the strip extends also between the two parts of the load. A first part of the load is a continuous load parallel to the strip, a second part of the load is a plurality of localized absorbing means placed along the propagation axis and parallel to said strip. The impedance of the localized absorbing means is matched to the impedance of an unwanted parasitic propagation mode at the corresponding place.

REFERENCES:
patent: 3845413 (1974-10-01), Chiron et al.
patent: 3886502 (1975-05-01), Radding et al.
patent: 3928806 (1975-12-01), Carter et al.

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