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AssigneeCentral Glass Company, Limited
InventorsHiroshi Inaba, Masao Shinnai, Kazuya Nishikawa, Tamotsu Saitoh, Tokio Tsukada
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The invention relates to a receiving antenna disposed on or in a vehicle window glass such as the rear window glass or the windshield of an automobile. The antenna comprises, as a principal antenna element, a transparent and conductive film in the shape of a quadrilateral having two substantially parallel sides one of which is at a distance of 15-25 mm from the upper edge of the window glass and the other at a distance of 15-25 mm from the lower edge. The quadrilateral film may be so wide that the remaining two sides thereof extend along the two side edges of the window glass, respectively, at a distance of 15-25 mm from the respective side edges. This is suitable for reception of not only FM radio broadcast waves in the 76-90 MHz or 88-108 MHz band and TV broadcast waves in the 90-222 MHz band but also AM radio broadcast waves. When the antenna is mostly for reception of FM radio broadcast waves and/or TV broadcast waves, it is suitable that the transparent and conductive film is in the shape of a rectangle which is elongate in the direction substantially perpendicular to the upper and lower edges of the window glass and has a lateral width in the range from 50 to 250 mm.
A window glass antenna for receiving broadcast waves including FM radio and TV broadcast waves in a vehicle, comprising as a principal element of the antenna a transparent and electrically conductive film attached to a window glass of the vehicle, said electrically conductive film being in the shape of a quadrilateral comprising two substantially parallel sides and two lateral sides, one of said substantially parallel sides being at a distance of 15-25 mm from an upper edge of the window glass and the other of said substantially parallel sides being at a distance of 15-25 mm from a lower edge of the window glass;
A window glass antenna for a vehicle, comprising as a principal element of the antenna a transparent and electrically conductive film attached to and located in a central area of a window glass of the vehicle, said electrically conductive film being in the shape of a rectangle which is elongate in a direction substantially perpendicular to upper and lower edges of the window glass and has a lateral width in the range from 50 to 250 mm, said rectangle comprising two substantially parallel sides, one of said substantially parallel sides being at a distance of 15-25 mm from the upper edge of the window glass and the other of said substantially parallel sides being at a distance of 15-25 mm from the lower edge of the window glass;
Dependencies are inferred from the claim text.