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:
Jun. 27, 2006
Filed:
Jul. 08, 2004
Lawrence M. Burns, Los Altos, CA (US);
Chong L. Woo, Fremont, CA (US);
Clement Szeto, Union City, CA (US);
Lawrence M. Burns, Los Altos, CA (US);
Chong L. Woo, Fremont, CA (US);
Clement Szeto, Union City, CA (US);
Amalfi Semiconductor, Inc., Los Gatos, CA (US);
Abstract
A power amplifier utilizes cascode arrangements to achieve target performance levels for a power amplifier, such as the type used in wireless communication devices. A negative resistance circuit is provided for the cascode arrangement such that high gain, or oscillation, is promoted during operation of the power amplifier. In one embodiment, the negative resistance circuit includes cross-coupling transistors. Various features are provided in order to reduce the susceptibility of the power amplifier to voltage breakdown while maintaining good performance.