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. 23, 2001
Filed:
Oct. 31, 2000
Robert Charles Taylor, Melbourne, FL (US);
James J. Rawnick, Palm Bay, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
The dual polarization antenna includes a substrate having a ground plane and a dielectric layer adjacent thereto, and at least one antenna unit carried by the substrate. The antenna unit includes four adjacent antenna elements arranged in spaced apart relation from one another about a central feed position on the dielectric layer opposite the ground plane. Preferably, diagonal pairs of antenna elements define respective antenna dipoles thereby providing dual polarization. The antenna unit also includes an antenna feed structure having four coaxial feed lines, each coaxial feed line including an inner conductor and a tubular outer conductor in surrounding relation thereto. The outer conductors have parallel adjacent ends joined together about an axis and are connected to the ground plane. The ends of the outer conductors are tapered and arranged so that portions thereof adjacent the axis extend further beyond the ground plane in the dielectric layer and toward the antenna elements. The inner conductors preferably extend outwardly from ends of respective outer conductors, through the dielectric layer and are connected to respective antenna elements adjacent the central feed position.