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:
Oct. 14, 2003
Filed:
Jun. 21, 2001
Applicant:
Inventor:
James C. Kolanek, Goleta, CA (US);
Assignee:
Celiant Corporation, Warren, NJ (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/26 ;
U.S. Cl.
CPC ...
H03F 1/26 ;
Abstract
An amplifier subsystem has a modulator to generate a pair of constant amplitude phase-modulated components which are in response to an input signal, a pair of channels that include a pair of power amplifiers to amplify the components, and a combiner to combine the amplified components. A number of variable gain elements are coupled into some of a number of signal paths of the amplifier subsystem. A controller is to receive feedback from the amplifier subsystem and in response maintains signal levels of some of the signal paths within predefined ranges and controls a net gain of the linear amplifier, by adjusting the variable gain elements.