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:
May. 07, 2019
Filed:
Sep. 19, 2017
Spawar Systems Center Pacific, San Diego, CA (US);
Justin A. Church, San Diego, CA (US);
Nazia Ahmed Mozaffar, San Diego, CA (US);
Frederick J. Verd, Santee, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An antenna comprising: a solar collector; two conductive, orthogonal half-loops mounted to the solar collector such that the solar collector functions as a ground; an RF power source configured to feed RF power to each of the two half-loops having a 90-degree phase difference relative to each other; and a conductive cage structure surrounding the two half-loops, wherein the cage structure includes a conductive ring disposed above the center section, the conductive ring having an equilateral cross of conductive material disposed within the ring and supported by leg structures which are in electrically-conductive contact with the solar collector, and wherein each leg structure has attached thereto a non-Foster circuit having a negative impedance, wherein the non-Foster circuits are configured to actively load the cage structure such that the cage structure functions as an active, internal matching network for the antenna.