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:
Feb. 29, 2000
Filed:
Apr. 01, 1999
Louis Leonard Nagy, Warren, MI (US);
Janalee Ann Graham, Linden, MI (US);
General Motors Corporation, Detroit, MI (US);
Delphi Technologies, Inc., Troy, MI (US);
Abstract
A broadband FM antenna is suitable for mounting on an inner surface of a rear window glass of a motor vehicle above an electric rear window defogger grid also mounted on the glass and made of the same frit material. The antenna has an extended range of reception across a commercial FM band without the need for an antenna boost amplifier and is capable of use in multiple countries having different commercial FM bands. The antenna comprises a plurality of horizontal frit lines extending outward from a series of points near the horizontal center of the rear window as described and claimed herein. Some of these horizontal elements are joined by outer connecting frit lines at their outer ends and all are connected at their inner ends by a plurality of inner connecting elements connecting all of the points together. The frit lines essentially form a pair of horizontal antenna elements, each tuned to one quarter of a different commercial FM band wavelength so that the antenna spans the desired band or bands. A connecting pad of frit material on the window glass connected to two of the points provides an antenna connection.