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:
Aug. 12, 2008
Filed:
Feb. 01, 2006
Jeffrey A. Frei, Hawthorn Woods, IL (US);
Enver Krvavac, Lake Zurich, IL (US);
Jeffrey A. Frei, Hawthorn Woods, IL (US);
Enver Krvavac, Lake Zurich, IL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
Power amplifier (PA) apparatus that includes: a PA device operating at a fundamental frequency and having a maximum operating frequency that is higher than the fundamental frequency, an output current having a fundamental component at the fundamental frequency and a plurality of harmonic components at different harmonic frequencies of the fundamental frequency, and an output voltage based on the output current; a first matching circuit coupled to the PA device and corresponding to the fundamental component; and a second matching circuit coupled between the PA device and the first matching circuit and corresponding to at least one of the harmonic components, wherein the first and second matching circuits maintain the PA output voltage at a value that is no more than a predetermined maximum value, which is less than a breakdown voltage for the PA device.