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. 17, 2021
Filed:
Feb. 04, 2020
Applicant:
Us Gov't Represented BY Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Inventors:
Assignee:
United States of America as represented by the Secretary of the Air Force, Wright-Patterson AFB, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 5/25 (2015.01); H01Q 15/00 (2006.01); H01Q 13/10 (2006.01); H01Q 13/20 (2006.01); H01Q 21/00 (2006.01); H01Q 13/08 (2006.01); H01Q 5/28 (2015.01);
U.S. Cl.
CPC ...
H01Q 5/25 (2015.01); H01Q 5/28 (2015.01); H01Q 13/085 (2013.01); H01Q 13/106 (2013.01); H01Q 13/206 (2013.01); H01Q 15/0053 (2013.01); H01Q 21/0075 (2013.01);
Abstract
An ultra wide band (UWB) antenna includes: (i) an array of antenna elements spaced from a central axis; and (ii) a network of lossy feedlines respectively communicatively coupled to the array of antenna elements. Each lossy feedline is periodically loaded with a resistance that is capacitively coupled to ground. Respective lengths of each lossy feedlines are selected to increase with an increase in distance from the central axis to achieve frequency independence of a radiated beamwidth from the UWB antenna.