Non-reciprocal circuit device

Details Non-reciprocal circuit device Non-reciprocal circuit device

2007-02-05

2009-10-27

Jones, Stephen E (Department: 2817)

Wave transmission lines and networks

Plural channel systems

Nonreciprocal gyromagnetic type

Reexamination Certificate

active

07609124

ABSTRACT:
A non-reciprocal circuit device comprising a metal case, a ground plate disposed on an inner bottom surface of the metal case, a resin member disposed on the ground plate and having an opening from which the ground plate is exposed, a planar microwave ferrite member disposed in the opening of the resin member, a strip line member disposed on the planar microwave ferrite member, and a permanent magnet disposed with distance on the strip line member without another planar microwave ferrite member therebetween, the strip line member comprising a connecting portion constituted by strip electrodes radially extending from a center portion, and branch lines radially extending from the center portion between the strip electrodes, low-impedance lines each integrally connected to each of the branch lines and extending along the periphery of the planar microwave ferrite member, and electrodes each integrally connected to each of the low-impedance lines, whereby the branch lines and the ground plate form microstrip lines, and the low-impedance lines and the ground plate form a grounded capacitor.

REFERENCES:
patent: 2006/0017520 (2006-01-01), Kingston et al.
patent: 2006/0139118 (2006-06-01), Vaughn et al.
patent: 1619744 (2006-01-01), None
patent: 2352564 (2001-01-01), None
patent: 55-083302 (1980-06-01), None
patent: 2003-124711 (2003-04-01), None
patent: 2003124711 (2003-04-01), None
patent: 2005-184676 (2005-07-01), None

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