NON-RECIPROCAL CIRCUIT ELEMENT

摘要

In a non-reciprocal circuit element, the characteristics variation with respect to temperature is suppressed with a simple configuration without changing a magnetic material or the material of a magnet. A non-reciprocal circuit element includes: a magnetic material (32) to which a DC magnetic field (G) is applied; a plurality of center electrodes (35, 36) disposed on the magnetic material (32) so as to intersect each other in an insulated state; a terminal resistor (R) connected between input and output ports (P1, P2) and in in parallel with one of the center electrodes (35, 36); a variable capacitance element (C11) connected between the input and output ports (P1, P2) and in parallel with the terminal resistor (R); and a thermistor element (S) connected to a control power supply circuit (E) of the variable capacitance element (C11) and in series with the variable capacitance element (C11).

主权项

1. A non-reciprocal circuit element comprising:
a magnetic material to which a DC magnetic field is applied; a plurality of center electrodes disposed on the magnetic material so as to intersect each other in an insulated state; a terminal resistor connected between input and output ports and in parallel with one of the center electrodes; a first variable capacitance element connected between the input and output ports and in parallel with the terminal resistor; and a first thermistor element connected to a control power supply circuit of the first variable capacitance element and in series with the first variable capacitance element.