Patent ID: 6744334
Filing Date: 2004-06-01
Classification: H01H,H01P

Abstract:
A phase shifter for switching passing phase of a high-frequency signal by means of ON/OFF control of a micro-machine switch, the micro-machine switch comprising:first and second distributed constant lines arranged on a substrate to be spaced from each other, a first control signal line connected electrically to the first or second distributed constant lines for application of a first control signal composed of a binary change in voltage, a cantilever, one end of which is fixed to one of the first and second distributed constant lines and the other end of which is formed to be capable of coming toward and away from the other of the first and second distributed constant lines, the cantilever comprising an electrically conductive member, a first insulating section formed in a region where the other of the first and second distributed constant lines faces the cantilever, and a second insulating section for maintaining a voltage value of the first control signal.