05138330 is referenced by 22 patents and cites 12 patents.

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.

Title
Pane antenna having an amplifier
Application Number
7/490767
Publication Number
5138330
Application Date
March 8, 1990
Publication Date
August 11, 1992
Inventor
Leopold Reiter
Gilching
DE
Jochen Hopf
Haar
DE
Gerhard Flachenecker deceased
late of Ottobrunn
DE
Heinz Lindenmeier
Planegg
DE
Agent
Michael J Striker
Assignee
Hans Kolbe & Co Nachrichtenubertragungstechnik
DE
IPC
H01Q 23/000
H01Q 1/320
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