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:
Apr. 05, 2016
Filed:
Dec. 04, 2013
Harris Corporation, Melbourne, FL (US);
Oliver Paul Leisten, Raunds, GB;
Harris Corporation, Melbourne, FL (US);
Abstract
Disclosed herein are example embodiments of a dielectrically loaded multifilar antenna for circularly polarised radiation the antenna having a plurality of operating frequencies in excess of 200 MHz. In one embodiment, the antenna comprises: an electrically insulative core having proximal and distal surface portions and, between the proximal and distal surface portions, a laterally directed side surface portion; a pair of feed nodes; at least four elongate generally helical conductive radiating elements located on the core; and, arranged between and coupling together the feed nodes and the radiating elements, a phasing ring formed by a closed loop, wherein the phasing ring is resonant at least two of the operating frequencies, the elongate antenna elements being coupled to the phasing ring at respective spaced apart coupling locations and extending from the phasing ring in a direction away from the feed nodes.