Non-reciprocal circuit element, method for manufacturing the same, and communication device

摘要

A non-reciprocal circuit element is equipped with a ferrite-magnet assembly which includes a pair of permanent magnets and a ferrite sandwiched between the permanent magnets. A first center electrode and a second center electrode defined by conducting films are provided on principal surfaces of the ferrite, such that the first center electrode and the second center electrode are insulated from each other and intersect each other. The permanent magnets have principal surfaces having substantially the same shape as the principal surfaces of the ferrite. The ferrite has upper and lower surfaces provided with recesses. The recesses have a conductor material embedded therein, whereby intermediate electrodes and connector electrodes are provided.