Low cost digital variable capacitor

Details Low cost digital variable capacitor Low cost digital variable capacitor

2007-10-16

2007-10-16

Ha, Nguyen T. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Variable

C361S272000, C361S278000, C361S287000, C361S290000, C361S292000, C333S246000, C333S262000, C333S263000

Reexamination Certificate

active

11217849

ABSTRACT:
A digital variable capacitor package is provided as having a ground plane disposed on predetermined portion of the top surface of a substrate. An elongated signal electrode may also be disposed on the substrate and including a first end defining an input and a second end extending to a substantially central region of the top surface of the substrate. This elongated signal electrode is disposed to be electrically isolated from the ground plane. A number of elongated cantilevers are disposed on the substrate and each include first ends coupled to the second end of the signal electrode and each further include second ends suspended over different predetermined portions of the ground plane. In operation, one or more of the cantilevers may be actuated to move portion thereof into close proximity to the ground plane for providing one or more discrete capacitance values.

REFERENCES:
patent: 6377438 (2002-04-01), Deane et al.
patent: 6396677 (2002-05-01), Chua et al.
patent: 6400550 (2002-06-01), Wood et al.
patent: 6593672 (2003-07-01), Ma et al.
patent: 6625004 (2003-09-01), Musolf et al.
patent: 6667506 (2003-12-01), Reedy et al.
patent: 6762481 (2004-07-01), Liu et al.
patent: 6818959 (2004-11-01), Montelius et al.
patent: 6897537 (2005-05-01), de los Santos
patent: 7061088 (2006-06-01), Karnezos
Tropical Review RF MEMS from a device perspective by J. Jason Yao, Apr. 12, 2000, p. R9-R38.
Eurosensors XVIII 4-State Digital Variable Capacitors by J.R. Reid, L.A. Starman, and R.T. Webster, Sep. 2004, pp. 405-406.
MTT-S Design and Modeling of RF MEMS Tunable Capacitors Using Electro-Thermal Actuators by Z. Feng et al., pp. 1507-1510, (1999).
MTT-S Digitally Controllable Variable High-Q MEMS Capacitor for RF Applications by N. Hovik et al, pp. 2115-2118, (2001).
MTT-S High-Q Millimeter-Wave Mems Varactors: Extended Tuning Range and Discrete-Position Designs by L. Dussopt and G.M. Rebeiz, pp. 1205-1208, (2002).
Integrated Systems Laboratory A Zipper-Action Differential Micro-Mechanical Tunable Capacitor by G. V. Ionis, A. Dec, K. Suyama, 2002, pp. 29-32.
Integrated Systems Laboratory Differential Multi-Finger Mems Tunable Capacitors for RF Integrated Circuits by G.V. Ionis, A. Dec, K. Suyama, 2002, pp. 345-348.

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