Patent ID: 6930566

Claim:
A nonreciprocal circuit element comprising: a flat-shaped ferrite material; first, second, and third central conductors that are provided on one another sandwiching dielectrics and that are crossing one another, the first, second, and third central conductors being provided on the ferrite material; a magnet provided on the first to third central conductors; a box-shaped first yoke covering the magnet; a box-shaped second yoke provided under the ferrite material for forming a magnetic closed circuit with the first yoke; and a plurality of chip capacitors with a first electrode and a second electrode, the plurality of chip capacitors being installed in the second yoke, wherein one of the first electrodes and the second electrodes is electrically connected to the second yoke, the other of the first electrodes and second electrodes is electrically connected to the central conductors, the second yoke has at least one window for exposing a majority of the surface area of the one of the first electrodes and the second electrodes, and the one of the first electrodes and the second electrodes can be cut out through the window.