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:
Jun. 30, 2015
Filed:
May. 13, 2011
Applicant:
Ronald H. Johnston, Calgary, CA;
Inventor:
Ronald H. Johnston, Calgary, CA;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
H01Q 13/00 (2006.01); H01Q 9/16 (2006.01); H01Q 13/02 (2006.01); H01Q 19/10 (2006.01); H01Q 21/26 (2006.01);
U.S. Cl.
CPC ...
H01Q 9/16 (2013.01); H01Q 13/02 (2013.01); H01Q 19/10 (2013.01); H01Q 21/26 (2013.01);
Abstract
A dual circularly polarized antenna is described. In some embodiments, the antenna includes a waveguide having an aperture at a first end and a conducting component at a second end, the conducting component shorting the waveguide. A first driven dipole is substantially orthogonal to a second driven dipole, and both the first and second driven dipoles are located near the aperture of the waveguide. The first and second driven dipoles are connected to the conducting component by one or more plates and configured to be fed in quadrature. A resonator is positioned near the first and second driven dipoles.