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. 29, 2015
Filed:
Oct. 01, 2012
Lockheed Martin Corporation, Bethesda, MD (US);
Mirwais Zeweri, Mount Laurel, NJ (US);
Chih-Chen Hsu, Cherry Hill, NJ (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A radiating element for a radar array antenna is provided. The radiating element comprises a first dielectric layer including a circular waveguide arranged therein, a second dielectric layer having a feed element for the circular waveguide embedded therein, and a cross-slot aperture formed in a groundplane arranged generally between the first and second dielectric layers. The feed element may comprise first and second stripline traces for exciting each of a first and second slot defining the cross-slot aperture. Each of the first and second dielectric layers comprises layers of a laminated printed wire board arrangement.