Electricity: electrical systems and devices – Electrostatic capacitors – Variable
Patent
1999-03-31
2000-11-14
Dinkins, Anthony
Electricity: electrical systems and devices
Electrostatic capacitors
Variable
361290, 3612982, H01G 500, H01G 516
Patent
active
061478563
ABSTRACT:
Devices for use in highly integrated radio frequency transceivers utilize micro-electro-mechanical systems, or wobble motors, to form superior switches and to select and vary components that determine different frequencies of operation. Each device has a substrate with concentric rings of electrodes and contacts. A circular rotor is centrally pivoted or wobbled to engage the contacts along its circumferential edge. The rotor may be mechanically or materially modified to create symmetric or asymmetric forms which interact with one or more stationary capacitor electrodes on the substrate. The positioning of the rotor forms in terms of rotation, overlap and separation, relative to the capacitor electrodes, varies the capacitance.
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Bogdon Bernard D.
Dillon Andrew
Dinkins Anthony
International Business Machine Corporation
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