PASSIVE COMPONENT

摘要

A passive component (10) is provided with a filter section (18) employing a nonequilibrium input/output system, which has an input side resonator (14) connected to a nonequilibrium input terminal (12), and an output side resonator (16) coupled with the input side resonator; and a converting section (24) having two double line coupled lines (20, 22). An output stage of the filter section (18) is connected with an input stage of the converting section (24) through a first capacitor (C1), and an input stage of the filter section (18) is connected with the input stage of the converting section (24) through a second capacitor (C2). Namely, the second capacitor (C2) functions as a jump capacitor. The position of an attenuation pole is permitted to be adjusted by a second capacitor (C2) in a region low in frequency characteristics.