Circuit module

A circuit module comprising:

• amplifying means for amplifying a plurality of types of signals;
• regulating means for restricting a passing direction of each of the plurality of types of signals amplified by the amplifying means to one direction, wherein the regulating means includes a plurality of non-reciprocal circuits individually disposed for the plurality of types of signals;
• and
• matching means for matching an output impedance of the amplifying means with an input impedance of the regulating means, wherein the matching means is disposed between the amplifying means and the regulating means,
• the plurality of non-reciprocal circuits including respective isolators,
• each of the isolators including
• a microwave magnetic body,
• a first center electrode and a second center electrode disposed on the microwave magnetic body such that the first and second center electrodes intersect with each other while being insulated from each other, and
• a permanent magnet for applying a direct-current magnetic field to a portion at which the first and second center electrodes intersect with each other,
• wherein among the isolators, at least two isolators are disposed such that a direct-current magnetic field of one permanent magnet of one isolator and a direct-current magnetic field of another permanent magnet of another isolator intensify with each other.