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. 06, 2019
Filed:
Dec. 30, 2016
Digital dithering for reduction of quantization errors and side-lobe levels in phased array antennas
Applicant:
Hughes Network Systems, Llc, Germantown, MD (US);
Inventors:
Thomas Jackson, Germantown, MD (US);
Hamad Alsawaha, Germantown, MD (US);
Bingqian Lu, Germantown, MD (US);
Peter Hou, Germantown, MD (US);
Yilin Mao, Germantown, MD (US);
Assignee:
HUGHES NETWORK SYSTEMS, LLC, Germantown, MD (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/01 (2006.01); H04B 7/185 (2006.01); H01Q 21/22 (2006.01); H01Q 3/26 (2006.01); H01Q 3/38 (2006.01);
U.S. Cl.
CPC ...
H04B 7/01 (2013.01); H01Q 3/26 (2013.01); H01Q 3/38 (2013.01); H01Q 21/22 (2013.01); H04B 7/18528 (2013.01);
Abstract
Systems and methods disclosed herein provide techniques for reducing quantization errors and side lobe levels in phased array antennas. The states of a quantized phase shifter of a phased array antenna may be dithered to achieve a time-averaged value that reduces quantization errors. By rapidly switching between the different states of the quantized phase shifter, a time-average value close to a desired phase state may be achieved with a low resolution phase shifter.