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. 18, 2012
Filed:
May. 24, 2010
Stefan Lindenmeier, Gauting, DE;
Heinz Lindenmeier, Planegg, DE;
Jochen Hopf, Haar, DE;
Leopold Reiter, Gilching, DE;
Stefan Lindenmeier, Gauting, DE;
Heinz Lindenmeier, Planegg, DE;
Jochen Hopf, Haar, DE;
Leopold Reiter, Gilching, DE;
Delphi Delco Electronics Europe GmbH, Troy, MI (US);
Abstract
An antenna for circular polarization having an electrical dipole radiator which is oriented essentially parallel to an electrically conductive base surface in a plane of symmetry SE oriented perpendicular to the electrically conductive base surface. The dipole is in connection with a slot radiator which is configured in an electrically conductive base surface, with its longitudinal expanse along the intersection line between the plane of symmetry SE and the electrically conductive base surface. The slot radiator connection location is formed by means of connection points situated at the longitudinal edges and lying opposite one another. The electrical dipole radiator and the slot radiator are tuned to one another in their resonance frequencies. The slot radiator and the electrical dipole radiator with dipole feed line are connected with the antenna connection location by way of a combining network, in terms of magnitude and phase, in such a manner that circular polarization exists in the remote field at the frequency at which the radiators are tuned to one another.