Nonreciprocal circuit device

Details Nonreciprocal circuit device Nonreciprocal circuit device

2010-02-05

2010-11-16

Jones, Stephen E (Department: 2817)

Wave transmission lines and networks

Coupling networks

Nonreciprocal gyromagnetic type

C333S001100

Reexamination Certificate

active

07834717

ABSTRACT:
A nonreciprocal circuit device (2-port isolator) includes a ferrite-magnet assembly including a ferrite, a first center electrode, and a second center electrode. The ferrite is sandwiched between a pair of permanent magnets and receives a direct-current magnetic field applied thereto. The first and second center electrodes are arranged on the ferrite. The ferrite includes a center layer and an outer layer ensuring an insulation state of the first and second center electrodes. The saturation magnetization of the outer layer is smaller than that of the center layer.

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Official Communication issued in International Patent Application No. PCT/JP2008/064051, mailed on Nov. 18, 2008.
Wada et al.; “Nonreciprocal Circuit Device”; U.S. Appl. No. 12/700,806, filed Feb. 5, 2010.
Kitamori et al.; “Non-Reciprocal Circuit Device”; U.S. Appl. No. 12/700,814, filed Feb. 5, 2010.

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