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:
Dec. 17, 2019
Filed:
Jan. 26, 2018
Applicant:
California Institute of Technology, Pasadena, CA (US);
Inventors:
Ghazaleh Kafaie Shirmanesh, Pasadena, CA (US);
Ruzan Sokhoyan, Pasadena, CA (US);
Harry A Atwater, South Pasadena, CA (US);
Assignee:
CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/29 (2006.01); H01Q 3/44 (2006.01);
U.S. Cl.
CPC ...
G02F 1/292 (2013.01); G02F 1/29 (2013.01); H01Q 3/44 (2013.01);
Abstract
An array of unit cells allows beam steering of an incident electromagnetic wave. Each unit cell has a back reflector, a conductive oxide between gate dielectrics, and an antenna. Voltage bias applied to different layers enables the accumulation or depletion of charges at the top and bottom interfaces of the conductive oxide. The charge accumulation and depletion regions control the refractive index of the material, enabling control of the reflected electromagnetic wave.