| 摘要 |
In order to obtain a favorable isolation characteristic over a wide band in a non-reciprocal circuit element, a non-reciprocal circuit element is provided with a magnetic body (10) to which a direct-current magnetic field is applied by a permanent magnet, and a plurality of center electrodes which are disposed on the magnetic body (10) to cross each other in isolated states. Among the plurality of center electrodes, a first center electrode (21) has one end connected to a first input/output port (P1), and a second center electrode (22) has one end connected to a second input/output port (P2). A resistance element (R) is connected in series between the ports (P1, P2), and a phase-shift circuit (a parallel resonance circuit composed of an inductance element (L5) and a capacitive element (C5)) is connected in series with the resistance element (R). |
