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:
Aug. 12, 2003
Filed:
Apr. 30, 2001
Applicant:
Inventors:
Bing Chiang, Melbourne, FL (US);
Griffin K. Gothard, Satellite Beach, FL (US);
Christopher A. Snyder, Palm Bay, FL (US);
Kenneth M. Gainey, Satellite Beach, FL (US);
Assignee:
Tantivy Communications, Inc., Melbourne, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 3/02 ; H01Q 1/906 ; H01Q 1/910 ; G01S 5/04 ;
U.S. Cl.
CPC ...
H01Q 3/02 ; H01Q 1/906 ; H01Q 1/910 ; G01S 5/04 ;
Abstract
An antenna array having a central active element and a plurality of passive elements surrounding the active element is disclosed. A dielectric substrate or other slow wave structure is disposed radially outwardly from the passive elements for slowing the radio frequency waves so as to increase the antenna directivity by reducing the amount of energy radiated in the elevation direction.