Patent ID: 6885537
Filing Date: 2005-04-26
Classification: H01G

Abstract:
1. A capacitor apparatus of the capacity variable type comprising: an insulation substrate in which at least two capacitor electrodes are formed on one surface in the state where insulation therebetween is maintained with each other; an actuator formed by an insulating material, and having an external shape to bridge over the respective capacitor electrodes on one surface, the actuator being adapted so that a common conductor respectively constituting capacitors are formed between the conductor and the respective capacitor electrodes; and drive means for carrying out an operation to allow the actuator to be in contact with the principal surface of the insulating substrate, or to allow it to be away therefrom, wherein the actuator adjusts opposite spacing between the actuator and the insulating substrate by the drive means, whereby capacitance adjustment of the respective capacitors is carried out.