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. 14, 1999
Filed:
Oct. 01, 1997
Applicant:
Inventors:
David C Jorgenson, Palm Bay, FL (US);
Bing Chiang, Melbourne, FL (US);
Assignee:
Harris Corporation, Melbourne, FL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01R / ;
U.S. Cl.
CPC ...
3437925 ; 343797 ;
Abstract
A wideband circularly polarized antenna comprises a crossed-element spatial quadrature arrangement of log-periodic antenna elements. The orientation of one of the antenna arms of each diametrically opposed pair of arms is reversed from four port rose configuration, so that the antenna arms of each of the two pairs of elements have mutual mirror symmetry. As a result, each pair of antennal arms may be fed by phase quadrature ports of the same ninety degree hybrid, thereby significantly reducing the complexity of the feed network.