Wide-band antenna on vehicle roof glass

Details Wide-band antenna on vehicle roof glass Wide-band antenna on vehicle roof glass

1990-05-24

1992-07-07

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With vehicle

H01Q 132

Patent

active

051286858

ABSTRACT:
The invention relates to an antenna attached to a vehicle roof glass, i.e. a glass plate fitted in an opening of the roof of a vehicle body such as an automobile body, for receiving FM radio and TV broadcast waves in both the VHF band and the UHF band. Essentially the antenna is comprised of a main element which is a conductive strip attached to the roof glass and bent so as to make a closed plane figure, a feed point attached to the roof glass and a connection line which connects the main element to the feed point and extends parallel or nearly parallel to the longitudinal center axis of the vehicle body. The total length of the main element is from 200 to 1500 mm. For example, the main element makes a rectangle in a central region of the roof glass with two opposite sides of the rectangle parallel to the aforementioned center axis. Optionally the antenna may include an auxiliary element which is a conductive strip attached to the roof glass and connected to the feed point. For example, auxiliary element may be an angled segment which makes two or three sides of a rectangle.

REFERENCES:
patent: 4608570 (1986-08-01), Inaba et al.
patent: 4727377 (1988-02-01), Yotsuya et al.
patent: 4768037 (1988-08-01), Inaba et al.
patent: 4791426 (1988-12-01), Lindenmeier et al.
patent: 4849766 (1989-07-01), Inaba et al.

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