Pane antenna having an amplifier

Details Pane antenna having an amplifier Pane antenna having an amplifier

1990-03-08

1992-08-11

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With vehicle

343701, H01Q 1320, H01Q 23000

Patent

active

051383306

ABSTRACT:
An active window pane antenna for use in motor vehicles includes an antenna conductor arranged on the window pane and being connected via a conductor of negligible length to an input terminal of an active four terminal network also arranged on the pane. The output terminals of the network are connected via a first section of a transmission line to an antenna connector whose ground contact is connected for high frequencies to a ground point on the body of the motor vehicle. The impedance of the first section of the transmission line is not negligible for the received frequency bands and the input impedance of the four terminal network is balanced with respect to the first section. A second section of the transmission line extends from the antenna connector to a receiver.

REFERENCES:
patent: 3866232 (1975-02-01), Weigt
patent: 4414690 (1983-11-01), Norholt et al.
patent: 4602260 (1986-07-01), Lindenmeier et al.
patent: 4757322 (1988-07-01), Yokogawa et al.
patent: 4791426 (1988-12-01), Linenmeier et al.
Johnson et al., Antenna Engineering Handbook, 2nd Ed., New York McGraw-Hill, 1984, Chapter 43 Impedance Matching and Broadbanding, David F. Bowman, pp. 43-1 to 43-32.

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