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. 30, 2016
Filed:
Mar. 28, 2013
Applicant:
William E. Mckinzie, Iii, Fulton, MD (US);
Inventor:
William E. McKinzie, III, Fulton, MD (US);
Assignee:
WEMTEC, INC., Fulton, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q 9/04 (2006.01); H01Q 19/10 (2006.01); H01Q 9/06 (2006.01); H01Q 9/28 (2006.01); H01Q 15/00 (2006.01); H01Q 21/26 (2006.01);
U.S. Cl.
CPC ...
H01Q 9/0407 (2013.01); H01Q 9/045 (2013.01); H01Q 9/065 (2013.01); H01Q 9/285 (2013.01); H01Q 15/008 (2013.01); H01Q 19/10 (2013.01); H01Q 21/26 (2013.01); Y10T 29/49016 (2015.01); Y10T 29/49018 (2015.01);
Abstract
An antenna system is described which is comprised of an artificial magnetic conductor (AMC), an antenna element, and a feed network comprised of shielded feedlines whose outer conductor, or shield, is routed through the substrate of the AMC. The feedline outer conductor is connected to both the substantially continuous conductive surface and the array of capacitive patches forming the AMC. The shielded feedline suppresses the excitation of undesired TM modes within the AMC substrate, results in a stable return loss over a frequency range associated with the AMC's high surface impedance and surface wave bandgap.