| 摘要 |
A non-reciprocal circuit element includes permanent magnets, a ferrite having center electrodes, a circuit substrate on which the permanent magnets and the ferrite are disposed, and an annular yoke. The circuit substrate has substantially rectangular surfaces. The permanent magnets and the ferrite are disposed on a front surface of the circuit substrate. The permanent magnets and the ferrite have principal surfaces that are disposed facing each other and are substantially perpendicular to the front surface of the circuit substrate. The permanent magnets and the ferrite have longitudinal sides that are substantially parallel to longitudinal edges of the circuit substrate.
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