Patent ID: 9147527
Filing Date: 2015-09-29
Classification: H01G,H01L

Abstract:
1. A variable capacity composite component which is a variable capacitor element comprising an N number of variable capacitors (where N =2n, wherein n is a natural number) arranged and connected in series on a support substrate, where each variable capacitor comprises a first electrode on a first signal terminal side and a second electrode on a second signal terminal side as well as a dielectric layer sandwiched by the two electrodes and whose dielectric constant changes due to an applied voltage, said variable capacity composite component having: while the first electrode of one of a pair of adjacent variable capacitors is electrically connected to the second electrode of the other variable capacitor in the pair, a first bias line including a resistance component, electrically connected to the first electrode of a 2i+1t′ variable capacitor (where i is a natural number equal to or smaller than n) or second electrode of a 2ith variable capacitor from the variable capacitor on the first signal terminal side, and also connected to the first bias terminal; and a second bias line including resistance component, electrically connected to the first electrode of a 2ith variable capacitor or second electrode of a 2i−1t′ variable capacitor from the variable capacitor on the first signal terminal side, and also connected to the second bias terminal; wherein a resistance value of the second bias line is adjusted to 0.45 to 0.55 times a resistance value of the first bias line connected to the first electrode of a first variable capacitor from the first signal terminal side and also connected to the first bias terminal, as well as a resistance value of the first bias line connected to the second electrode of an Nth variable capacitor and also connected to the first bias terminal.