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:
Jun. 15, 2021
Filed:
Nov. 01, 2017
Applicant:
Analog Devices Global Unlimited Company, Hamilton, BM;
Inventors:
Ahmed I. Khalil, Dracut, MA (US);
Patrick Pratt, Mallow, IE;
Assignee:
ANALOG DEVICES GLOBAL UNLIMITED COMPANY, Hamilton, BM;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H01Q 3/28 (2006.01); H03F 1/32 (2006.01); H03F 3/68 (2006.01); H03F 3/24 (2006.01); H03F 3/189 (2006.01);
U.S. Cl.
CPC ...
H03F 1/3247 (2013.01); H03F 1/3282 (2013.01); H03F 3/189 (2013.01); H03F 3/24 (2013.01); H03F 3/68 (2013.01); H04B 1/04 (2013.01); H04B 1/0475 (2013.01); H03F 2200/451 (2013.01); H03F 2201/3236 (2013.01); H04B 2001/0425 (2013.01);
Abstract
Apparatus and methods provide predistortion for a phased array. Radio frequency (RF) sample signals from phased array elements are provided along return paths and are combined by a hardware RF combiner. Phase shifters are adjusted such that the RF sample signals are phase-aligned when combined. Adaptive adjustment of predistortion for the amplifiers of the phased array can be based on a signal derived from the combined RF sample signals.