The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 09, 2007
Filed:
Jan. 21, 2005
Jonathan J. Lynch, Oxnard, CA (US);
Sarabjit Mehta, Calabasas, CA (US);
John Pasiecznik, Malibu, CA (US);
Peter Petre, Oak Park, CA (US);
Jonathan J. Lynch, Oxnard, CA (US);
Sarabjit Mehta, Calabasas, CA (US);
John Pasiecznik, Malibu, CA (US);
Peter Petre, Oak Park, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
A device for varying the capacitance of an electronic circuit is disclosed. The device comprises a flexible membrane located above the electronic circuit, a metal layer connected to the flexible membrane, and bias circuitry located above the membrane. Variation of the capacitance of the electronic circuit is obtained by pulling the membrane upwards by means of the bias circuitry. The disclosed device provides a sizeable capacitance variation and high Q factor, resulting in overall low filter insertion loss. A nearly constant group delay over a wide operating bandwidth is also obtained.