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, 2014
Filed:
Dec. 21, 2010
Wan Jong Kim, Coquitlam, CA;
Kyoung Joon Cho, Coquitlam, CA;
Shawn Patrick Stapleton, Burnaby, CA;
Ying Xiao, Coquitlam, CA;
Wan Jong Kim, Coquitlam, CA;
Kyoung Joon Cho, Coquitlam, CA;
Shawn Patrick Stapleton, Burnaby, CA;
Ying Xiao, Coquitlam, CA;
Dali Systems Co. Ltd., George Town Grand Cayman, KY;
Abstract
A RF-digital hybrid mode power amplifier system for achieving high efficiency and high linearity in wideband communication systems is disclosed. The present invention is based on the method of adaptive digital predistortion to linearize a power amplifier in the RF domain. The present disclosure enables a power amplifier system to be field reconfigurable and support multi-modulation schemes (modulation agnostic), multi-carriers and multi-channels. As a result, the digital hybrid mode power amplifier system is particularly suitable for wireless transmission systems, such as base-stations, repeaters, and indoor signal coverage systems, where baseband I-Q signal information is not readily available.