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:
Apr. 06, 2010
Filed:
May. 21, 2003
Ross James Wilkinson, Bristol, GB;
James Douglas Marvill, Bath, GB;
Craig Scott Rackstraw, Bristol, GB;
Adrian Richard Mansell, Bristol, GB;
Ross James Wilkinson, Bristol, GB;
James Douglas Marvill, Bath, GB;
Craig Scott Rackstraw, Bristol, GB;
Adrian Richard Mansell, Bristol, GB;
Powerwave Technologies, Inc., Santa Ana, CA (US);
Abstract
A control system for a linear feed-forward amplifier, using the ratio of measured spurious energy. Measuring receivers are coupled to two monitoring points to measure the spurious energy content in the error signal and at the main output of a feed-forward amplifier. The control system measures the ratio of these detected spurious, and uses this to optimize the settings of the second loop distortion cancellation. With the addition of an extra monitoring point, the same technique may also be used to control an adaptive predistorter prior to the main amplifier.