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:
Sep. 14, 2021
Filed:
Dec. 14, 2018
Applicant:
Southwest Research Institute, San Antonio, TX (US);
Inventors:
Dorel Marius Necsoiu, San Antonio, TX (US);
Brad D. Moore, Boerne, TX (US);
Emilio Martinez, Jr., San Antonio, TX (US);
Assignee:
Southwest Research Institute, San Antonio, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 3/26 (2006.01); G01S 13/90 (2006.01); H01Q 21/06 (2006.01);
U.S. Cl.
CPC ...
H01Q 3/2647 (2013.01); G01S 13/9023 (2013.01); H01Q 21/065 (2013.01);
Abstract
A Van Atta antenna array comprising a number of antenna elements electrically connected to operate as a Van Atta antenna array and fabricated on and within a substrate. Each antenna element has a number of patch elements fabricated on the top surface of the substrate, with the patch elements being interconnected by substrate integrated waveguides. The antenna array provides a two-dimensional retro-reflective surface, which makes it especially suitable for InSAR monitoring of infrastructures.