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. 30, 1988
Filed:
Dec. 17, 1987
Hiroshi Inaba, Matsusaka, JP;
Masao Shinnai, Matsusaka, JP;
Kazuya Nishikawa, Matsusaka, JP;
Tamotsu Saitoh, Matsusaka, JP;
Tokio Tuskada, Matsusaka, JP;
Central Glass Company, Limited, Ube, JP;
Abstract
The invention relates to an antenna disposed on or in a vehicle window glass such as the rear window glass or the windshield of an automobile to receive FM radio and/or TV broadcast waves. A principal element of the antenna is a transparent and conductive film in the shape of a quadrilateral having a horizontal upper side. The conductive film occupies a major and central area of the window glass at a distance not less than 15 mm from each edge of the glass. A feeding bar formed of a strip of a low-resistivity material is attached to the conductive film so as to extend horizontally along at least a portion of the upper side of the conductive film, and a lead connects the feeding bar to a feeding point on the window glass. A good position of the junction point of the lead and the feeding bar is in the middle of the width of the window glass. When the feeding point and the junction point are in a side marginal region of the window glass it is desirable to provide, as an auxiliary antenna element, a conductive strip which extends above and parallel to the feeding bar from the side marginal region to a central region of the glass and is connected to the feeding bar in the side marginal region.