Variable capacitance element

Details Variable capacitance element Variable capacitance element

2006-04-11

2006-04-11

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

C361S281000

Reexamination Certificate

active

07027284

ABSTRACT:
A variable capacitance element includes a coplanar line or signal conduction and a movable body, which are vertically displaced through a supporting bar and which are provided on a substrate. A movable electrode is provided between a first driving electrode and second and third driving electrodes which are movable electrodes. Voltage is applied between the movable electrodes, such that one of the movable electrodes is pressed against the coplanar line through a dielectric film. Thus, high frequency signals conducting through the coplanar line are shut off. When voltage is applied between the other electrodes, the movable electrode and the dielectric film are moved apart from the coplanar line. Thus, high frequency signals are conducted through the coplanar line.

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Official Communication dated Oct. 25, 2005, issued in the corresponding Japanese Patent Application No. 2002-063141. (With full English translation).

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