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:
Mar. 09, 2021
Filed:
Feb. 13, 2018
California Institute of Technology, Pasadena, CA (US);
Seyed Mohammadreza Fatemi, Pasadena, CA (US);
Aroutin Khachaturian, Pasadena, CA (US);
Behrooz Abiri, Pasadena, CA (US);
Seyed Ali Hajimiri, Pasadena, CA (US);
CALIFORNIA INSTITUTE OF TECHNOLOGY, Pasadena, CA (US);
Abstract
An optical phased array (OPA) includes, in part, a multitude of phase control elements disposed along N rows and M columns forming an N×M array. The phase control elements disposed along irow are coupled to irow signal line and phase control elements disposed along jcolumn are coupled to jcolumn signal line. The OPA further includes, in part, a row select block having N switches each configured to couple one of the N rows of the phase control elements to a digital-to-analog converter (DAC) in response to a row select signal. The OPA further includes, in part, a column select block having M switches each configured to couple one of the M rows of the phase control elements to a ground terminal in response to a column select signal.