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.:

US 7342445 B1

Date of Patent:

Mar. 11, 2008

Filed:

May. 30, 2006

Radio frequency power amplifier circuit and method

Applicants:

Narendra Kumar Aridas, Kulim, MY;

Macwien Krishnamurthi Annamalai, Petaling Jaya, MY;

Joshua Khai Ho Lee, Penang, MY;

Teik Siew Tan, Pul, MY;

Inventors:

Narendra Kumar Aridas, Kulim, MY;

Macwien Krishnamurthi Annamalai, Petaling Jaya, MY;

Joshua Khai Ho Lee, Penang, MY;

Teik Siew Tan, Pul, MY;

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:

Terri S. Hughes

Primary Examiner:

Patricia Nguyen

Int. Cl.

CPC ...

H03G 3/20 (2006.01);

U.S. Cl.

CPC ...

Abstract

A method () and radio frequency amplifier circuit () for adjusting a gain setting of a power amplifier () and a gain setting of a power amplifier driver () that form part of the radio frequency amplifier circuit (). The method () includes selecting () a power output value for the power amplifier and an associated constant envelope modulated radio frequency signal supplied by the power amplifier driver () to the power amplifier () and then sensing variations () in a power output value of the power amplifier (). Next there is performed adjusting () both the gain setting of the power amplifier () and adjusting the gain setting of the power amplifier driver () in response to the sensing so that the constant envelope modulated signal is within a linear operating region of the power amplifier (). The gain settings of the power amplifier () and power amplifier driver () are concurrently adjusted until the power output value for the power amplifier is achieved.

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Aridas, Narendra. (2008). Radio frequency power amplifier circuit and method (U.S. Patent No. 7342445). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7342445

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