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:
Feb. 19, 2013
Filed:
Aug. 17, 2009
Applicants:
Kurt L. Shlager, Sunnyvale, CA (US);
Liang C. Chu, Sunnyvale, CA (US);
Inventors:
Kurt L. Shlager, Sunnyvale, CA (US);
Liang C. Chu, Sunnyvale, CA (US);
Assignee:
Lockheed Martin Corporation, Bethesda, MD (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electrically small antenna includes a first plurality of helical arms extending in one direction from a central portion of the antenna and a second plurality of helical arms extending from the central portion in a direction opposite from the direction of the first plurality of helical arms. A plurality of switches are coupled to control signal transmission and reception on the helical arms, each of the plurality of switches is coupled between a corresponding one of the first plurality of helical arms and the second plurality of helical arms.