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:
May. 15, 2001
Filed:
Jul. 01, 1999
James L. Bartlett, Cedar Rapids, IA (US);
Mau Chung F. Chang, Thousand Oaks, CA (US);
Henry O. Marcy, 5th, Camarillo, CA (US);
Kenneth D. Pedrotti, Thousand Oaks, CA (US);
David R. Pehlke, Chapel Hill, NC (US);
Charles W. Seabury, Calabasas, CA (US);
Jun J. Yao, Thousand Oaks, CA (US);
Deepak Mehrotra, Thousand Oaks, CA (US);
J. L. Julian Tham, San Jose, CA (US);
Rockwell Science Center, LLC, Thousand Oaks, CA (US);
Abstract
Power amplifiers having reactive networks (such as classes C, C-E, E and F) employ tunable reactive devices in their reactive networks, with the reactive devices respective reactance values capable of being adjusted by means of respective control signals. The tunable reactive devices are made from micro-electromechanical (MEM) devices capable of being integrated with the control circuitry needed to produce the control signals and other amplifier components on a common substrate. The reactive components have high Q values across their adjustment range, enabling the amplifier to produce an output with a low harmonic content over a wide range of input signal frequencies, and a frequency agile, high quality output. The invention can be realized on a number of foundry technologies.