NONREVERSIBLE CIRCUIT ELEMENT AND COMMUNICATION EQUIPMENT

摘要

PURPOSE: To provide a nonreversible circuit element with which a large attenuation quantity can be obtained in a prescribed frequency band and while is small and also inexpensive, and communication equipment using it. CONSTITUTION: A serial resonance circuit obtained by serially connecting an inductor L1 and a capacitor C1 is connected between the port P1 of one central conductor and the ground, capacitors C2 and C3 are connected between the ports P2 and P3 of the other central conductors and the ground, and a terminating resistance R is connected to the port P3.