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. 05, 2017
Filed:
Jan. 07, 2014
Applicant:
Lockheed Martin Corporation, Bethesda, MD (US);
Inventor:
Timothy Bryan Ogilvie, San Jose, CA (US);
Assignee:
LOCKHEED MARTIN CORPORATION, Bethesda, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 3/30 (2006.01); H01P 11/00 (2006.01);
U.S. Cl.
CPC ...
H01Q 3/30 (2013.01); H01P 11/00 (2013.01);
Abstract
An antenna cell for a wide-scan low-profile phased array system includes an antenna layer including one or more stacked conductive radiators configured to receive electromagnetic waves. The antenna cell also includes a feed layer that includes multiple rectangular slots and one or more feed structures. Each rectangular slot may excite an orthogonal polarization. The feed structures are positioned perpendicular to one another, and each of the feed structures includes a feed fork that includes a set of open-circuit stubs and is configured to tune antenna performance.