| 摘要 |
A non-reciprocal circuit element includes first (1) and second (2) isolators of a high-pass type, each of the first and second isolators including a permanent magnet, a ferrite body (32) to which a direct-current magnetic field is applied by the permanent magnet, and first (35) and second (36) center electrodes arranged on the ferrite body so as to cross each other in an insulated state. The first isolator has a passing frequency band that is higher than a passing frequency band of the second isolator. The first and second isolators have input portions that are electrically connected to form a single input port. A low pass filter (LPF) is provided between the input port and the input portion of the second isolator. |
