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.

Date of Patent:
Aug. 09, 2022

Filed:

Feb. 23, 2021
Applicant:

National Technology & Engineering Solutions of Sandia, Llc, Albuquerque, NM (US);

Inventors:

Michael Gehl, Albuquerque, NM (US);

Christopher Michael Long, Albuquerque, NM (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/295 (2006.01);
U.S. Cl.
CPC ...
G02F 1/2955 (2013.01);
Abstract

A method and apparatus are provided for controlling the phase shifts produced in a binary corporate tree network of the kind, e.g., that can drive a phased array for steering an optical beam. The method employs a novel phase-wrapping technique in which an entire layer of the binary tree is disabled when the phase added in that layer reaches 2π. With that technique, it is possible to economize on electrical control lines and on the use of electric power, while still maintaining the ability to produce arbitrary phases at the output of the tree network.


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