Patent ID: 6087905
Filing Date: 2000-07-11
Classification: H01P

Abstract:
A nonteciprocal circuit device comprising:a case;a magnetic member in the case;a magnetic assembly in the case having a plurality of central conductors, first ends of said central conductors being disposed on the magnetic member so as to mutually intersect and being adapted to receive a DC magnetic field applied thereto, second ends of said central conductors defining corresponding ports;a plurality of matching capacitors connected respectively between said ports of said central conductors and a ground; anda spacer for stably supporting at least the magnetic assembly and the matching capacitors in the case;wherein the spacer includes filter electrodes providing a filter inductor and a filter capacitor; the filter inductor is connected between the port of at least one of the central conductors and an input/output terminal corresponding to the port; the filter capacitor is connected between said input/output terminal and said ground; whereby a low-pass filter is formed by the filter inductor, the filter capacitor, and the matching capacitor.