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:
Oct. 09, 2001
Filed:
Dec. 22, 1999
Robert G. Riddle, San Diego, CA (US);
Allan C. Goetz, La Jolla, CA (US);
TRW Inc., Redondo Beach, CA (US);
Abstract
A phased array antenna (,) that includes a plurality of multiple spiral arm antenna elements (,). The antenna elements (,) are hexagonal in shape and are aligned in a triangular lattice geometry, where the elements (,) are arranged in rings around a common center element (,). The elements (,) include at least two arms (,) which terminate at opposite sides of the element (,). The ends (,) of the arms (,) of diagonally adjacent elements (,) are positioned proximate to each other to provide inter-element coupling to increase the bandwidth of the antenna (,). The tight coupling of the antenna elements (,) also reduces the RCS of the antenna (,).