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. 15, 2011
Filed:
Nov. 08, 2007
David W. Brock, San Diego, CA (US);
Peter S. Berens, San Diego, CA (US);
Bruce D. Calder, San Diego, CA (US);
Terence R. Albert, La Jolla, CA (US);
Robbi Mangra, San Diego, CA (US);
Hale B. Simonds, Santee, CA (US);
David W. Brock, San Diego, CA (US);
Peter S. Berens, San Diego, CA (US);
Bruce D. Calder, San Diego, CA (US);
Terence R. Albert, La Jolla, CA (US);
Robbi Mangra, San Diego, CA (US);
Hale B. Simonds, Santee, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
An antenna includes a support structure and radiating element. The radiating element includes a dielectric planar substrate having a first and a second surface, at least two conductive spiral arms extending outward from and spiraling about an axis of rotation formed on the first surface, and a feed conductor extending outward from and spiraling about an axis of rotation formed on the second surface. The feed conductor may be substantially aligned with one of the conductive spiral arms. When the support structure is placed upon a substantially planar surface, the radiating element is positioned at height h from the planar surface, wherein height h is about one-fourth the wavelength of the antenna's operating frequency. The antenna may produce an omni-directional antenna pattern in azimuth and a broad antenna pattern in elevation, with both patterns having nulls near the horizon. An external reflector may be operatively coupled to the antenna.