Vehicle window glass antenna using transparent conductive film

Details Vehicle window glass antenna using transparent conductive film Vehicle window glass antenna using transparent conductive film

1987-07-02

1989-07-18

Hille, Rolf

Communications: radio wave antennas

Antennas

With vehicle

H01Q 132

Patent

active

048497665

ABSTRACT:
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.

REFERENCES:
patent: 2944926 (1960-07-01), Gaiser
patent: 3728732 (1973-04-01), Igarashi
patent: 3766563 (1973-10-01), Sauer et al.
patent: 3771159 (1973-11-01), Kawaguchi et al.
patent: 4329691 (1982-05-01), Prewitt

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