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. 29, 2009
Filed:
Jun. 29, 2006
Vincent A. Hirsch, Boulder, CO (US);
Bradley M. Mccarthy, Torrance, CA (US);
Thomas S. Watson, Thornton, CO (US);
John Mehr, Superior, CO (US);
Thomas M. Crawford, Westminster, CO (US);
Vincent A. Hirsch, Boulder, CO (US);
Bradley M. McCarthy, Torrance, CA (US);
Thomas S. Watson, Thornton, CO (US);
John Mehr, Superior, CO (US);
Thomas M. Crawford, Westminster, CO (US);
Ball Aerospace & Technologies Corp., Boulder, CO (US);
Abstract
Embedded surface wave antenna elements incorporating different dielectric materials or other features are provided. The different dielectric materials can arranged adjacent a feed, to absorb energy that can cause undesirable reflections in the antenna element. In addition or alternatively, different dielectric materials can be arranged to alter the velocity of energy through the antenna element, and to control or attenuate the formation of nulls in the far field at angles of interest. The control or attenuation of nulls in the far field at angles of interest can further be controlled through contouring an antenna element ground plane in a lens region of the antenna element. A buried feed arrangement is also described.