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. 23, 2016
Filed:
Mar. 17, 2015
Northrop Grumman Systems Corporation, Falls Church, VA (US);
Gregory P. Krishmar-Junker, Gardena, CA (US);
Philip W. Hon, Hawthorne, CA (US);
Arun K. Bhattacharyya, Littleton, CO (US);
Northrop Grumman Systems Corporation, Falls Church, VA (US);
Abstract
A coaxial feed horn including a dielectric substrate having at least one microstrip feed line deposited on a bottom surface of the substrate and a ground plane deposited on a top surface of the substrate. A cylindrical outer conductor is electrically coupled to the ground plane and an embedded conductor is coaxially positioned within the outer conductor, where the embedded conductor is in electrical contact with the microstrip line. A dielectric member is positioned within the outer conductor and includes a tapered portion extending out of the outer conductor at the aperture. In one embodiment, the dielectric member is a plurality of dielectric layers each having a different dielectric constant, where a first dielectric layer allows for propagation of a TEsum mode and a last dielectric layer is positioned proximate the antenna aperture and allows for propagation of a TEdifference mode.