Two-port isolator and communication device

Details Two-port isolator and communication device Two-port isolator and communication device

2006-01-31

2006-01-31

Jones, Stephen E. (Department: 2817)

Wave transmission lines and networks

Coupling networks

Nonreciprocal gyromagnetic type

C333S001100

Reexamination Certificate

active

06992540

ABSTRACT:
A two-port isolator includes a microwave ferrite member, first and second center electrodes that intersect with each other on the ferrite member with isolation therebetween, a permanent magnet that applies a DC magnetic field to the ferrite member, and a multilayer substrate having center-electrode-connecting electrodes and first and second matching capacitors. The ferrite member, the first and second center electrodes, the permanent magnet, and the multilayer substrate are accommodated in a housing that includes a magnetic cap and a case having a magnetic metal plate molded thereonto. The second matching capacitor has a higher Q factor than the first matching capacitor.

REFERENCES:
patent: 57-007615 (1982-01-01), None
patent: 09-232818 (1997-09-01), None
patent: 2001-267872 (2001-09-01), None
patent: 2002-305125 (2002-10-01), None
patent: 2003-128456 (2003-05-01), None

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