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. 27, 2009
Filed:
Aug. 04, 2003
Adrianus Van Bezooijen, Nijmegen, NL;
Christophe Chanlo, Nijmegen, NL;
Adrianus Van Bezooijen, Nijmegen, NL;
Christophe Chanlo, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
A method and circuit for preserving linearity of a RF power amplifier, the power amplifier including a RF power output unit () having a characteristic drive level and fed by a supply voltage, comprising measuring the output voltage of the RF power output unit (); comparing the measured output voltage to at least one threshold voltage to produce a control signal; and adapting the drive level or the supply voltage of the RF power output () unit by means of the control signal to operate the output unit below its saturation level. A method and circuit for stabilizing an antenna circuit comprising a RF power amplifier and a matching circuit by preserving linearity of a RF power amplifier, where the above power amplifier is used.