| 摘要 |
PROBLEM TO BE SOLVED: To provide a resonance circuit, which is capable of easily removing a frequency component and has a high no-load Q. SOLUTION: A series circuit composed of a capacitor element C1, a thin film capacitor element C2, which varies in capacitance when a control voltage is applied, and a strip line Re is interposed in between a transmission line S which transmits high-frequency signals and a ground potential. A control voltage terminal CONT, where the control voltage is applied, is provided between the capacitor element C1 and the thin film capacitor element C2.
|
