Communications: radio wave antennas – Antennas – With vehicle
Patent
1991-02-25
1993-06-15
Hille, Rolf
Communications: radio wave antennas
Antennas
With vehicle
H01Q 132
Patent
active
052203360
ABSTRACT:
The invention provides a vehicle window glass antenna for transmission and reception of ultrashort waves used for mobile phones and/or personal radios. The antenna has a primary antenna which is a combination of at least two vertical (in the sense of perpendicular to a horizontal line) elements and at least two horizontal elements each of which directly connects with at least one of the vertical elements and a secondary antenna which is essentially a horizontally elongate element located in a space between the primary antenna and the lower or upper edge of the window glass. The primary antenna is arranged within a rectangular area having a limited horizontal width and a limited length, and the horizontal element of the secondary antenna has a limited length. The antenna feeder is a coaxial cable, and the primary antenna and the secondary antenna are connected with the inner conductor and the outer conductor of the coaxial cable, respectively. In a preferred embodiment the major part of the primary antenna is in the form of a rectangular grid.
REFERENCES:
patent: 4439774 (1984-03-01), Kume et al.
patent: 4608570 (1986-08-01), Inaba et al.
patent: 4803492 (1989-02-01), Inaba et al.
Fujii Kazuhiko
Hirotsu Tohru
Nagayama Yoji
Nishikawa Kazuya
Shinnai Masao
Central Glass Company Limited
Hille Rolf
Ho Tan
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