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:
Jul. 28, 2020
Filed:
Jan. 04, 2019
Applicant:
Dali Systems Co. Ltd., George Town, KY;
Inventors:
Wan-Jong Kim, Port Moody, CA;
Shawn Patrick Stapleton, Vancouver, CA;
Assignee:
DALI SYSTEMS CO. LTD., George Town, KY;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04K 1/02 (2006.01); H04B 1/04 (2006.01); H03F 1/02 (2006.01); H03F 1/32 (2006.01); H03F 3/24 (2006.01); H04B 1/00 (2006.01);
U.S. Cl.
CPC ...
H04B 1/0475 (2013.01); H03F 1/02 (2013.01); H03F 1/3241 (2013.01); H03F 3/24 (2013.01); H04B 1/0017 (2013.01); H04B 2001/045 (2013.01); H04B 2001/0425 (2013.01); H04B 2001/0433 (2013.01);
Abstract
A digital predistortion linearization method is provided for increasing the instantaneous or operational bandwidth for RF power amplifiers employed in wideband communication systems. Embodiments of the present invention provide a method of increasing DPD linearization bandwidth using a feedback filter integrated into existing digital platforms for multi-channel wideband wireless transmitters. An embodiment of the present invention utilizes a DPD feedback signal in conjunction with a low power band-pass filter in the DPD feedback path.