Patent ID: 6147856
Filing Date: 2000-11-14
Classification: H01G

Abstract:
A wobble disc capacitor, comprising:a substantially planar stator having a substrate with a central pivot;an annular contact mounted on the substrate of the stator substantially concentric with the central pivot;an annular array of drive elements mounted on the substrate of the stator substantially concentric between the central pivot and the contact;at least one stationary capacitor electrode mounted to the substrate of the stator radially inward of the contact;a circular, substantially planar, electrically conductive rotor mounted to the central pivot such that a center point of the rotor is axially spaced-apart from a center point of the stator, the rotor having an outer perimeter and being substantially concentric with the stator, the rotor also being tilted about the central pivot relative to the stator such that the perimeter is aligned and touches the contact at all times; and whereinin response to the activation of at least one drive element, the rotor is movable to a plurality of positions about the stator to define a gap between the rotor and the capacitor electrode to establish a variable capacitance value therewith for circuit application.