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:
Dec. 30, 1997
Filed:
Sep. 09, 1996
Vahakn Nalbandian, Ocean, NJ (US);
Choon Sae Lee, Dallas, TX (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A circularly polarized antenna is described having a ground plane and spa conductive patches parallel to it forming lower and upper cavities. The lower cavity is excited by a coax introduced at an impedance matching point in the ground plane, and the upper cavity is energized by apertures in the middle patch. The sides of the lower cavity from which radiation does not emanate are shorted to the ground plane, and the sides of the upper cavity from which radiation does not emanate as shorted to the middle patch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile