NON-RECIPROCAL CIRCUIT ELEMENT, COMMUNICATION APPARATUS EQUIPPED WITH CIRCUIT INCLUDING NON-RECIPROCAL CIRCUIT ELEMENT, AND MANUFACTURING METHOD OF NON-RECIPROCAL CIRCUIT ELEMENT

摘要

A circulator includes a ferrite disposed above a PCB, a metal cover that covers above the ferrite and is formed integrally, a plurality of connection parts that electrically connect the metal cover to a plurality of respective signal transmission lines above the PCB, and a permanent magnet that applies a magnetic field to the ferrite. Thus, it is possible to provide, for example, a non-reciprocal circuit element that is composed of a small number of parts and can be easily mounted on a circuit board, a communication apparatus equipped with a circuit including the non-reciprocal circuit element, and a manufacturing method of a non-reciprocal circuit element.

主权项

1. A non-reciprocal circuit element comprising:
a ferrimagnet that is disposed above a circuit board; a conductive cover that covers an upper surface of the ferrimagnet and is formed integrally; a plurality of connection parts that electrically connect the conductive cover to a plurality of respective signal transmission lines above the circuit board; and a magnet that applies a magnetic field to the ferrimagnet.