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:
Mar. 28, 2000
Filed:
May. 15, 1998
Brett Warneke, Berkeley, CA (US);
Juan Lam, Agoura Hills, CA (US);
Adele Schmitz, Newbury Park, CA (US);
Julia Brown, Santa Monica, CA (US);
Darren Atkinson, La Habra, CA (US);
Daniel J Hyman, Cleveland Hts., OH (US);
Robert Y Loo, Agoura Hills, CA (US);
Hughes Electronics Corporation, El Segundo, CA (US);
Abstract
A reconfigurable filter system designed using micro-elecro-mechanical (MEM) switches is disclosed. The filter comprises a transmission line with one or more filter stubs coupled to the transmission line by MEM switches. The impedance of the filter system is altered by selectively opening and closing the MEM switches, which alters the filter characteristics of the filter system. Alternatively, the characteristics of the filter system are altered by using the MEM switches to selectively alter the length of filter stubs attached to the transmission line.