HIGH-PASS FILTER BUILT-IN SWITCH, HIGH-PASS/LOW-PASS FILTER SWITCHING PHASE SHIFTER, TUNABLE RESONATOR, PASS BAND VARIABLE BANDPASS FILTER, AND STOP BAND VARIABLE BAND REJECTION FILTER

摘要

PROBLEM TO BE SOLVED: To provide a high-pass filter built-in switch which includes a cantilever structure switch formed using a MEMS, to process high-frequency signals with low loss.;SOLUTION: The high-pass filter built-in switch includes two cantilever structure switches which open/close a movable electrode provided at a free end of a cantilever and a fixed electrode that faces the movable electrode by deforming the cantilever. The cantilever structure switch includes a first input/output terminal which is connected to a high-frequency line where the fixed electrode of one cantilever structure switch is provided, with a support end of a cantilever being connected to GND through a parallel inductor, a second input/output terminal connected to a high-frequency line where the fixed electrode of the other cantilever structure switch is provided, and a serial capacitor which connects the support end of the cantilever on one cantilever structure switch to that of the cantilever of the other cantilever structure switch.;COPYRIGHT: (C)2009,JPO&INPIT