Patent · US Expired

Pane antenna having an amplifier

US5138330A · kind A · utility

24Cited by

5References

2Claims

0Family size

Assignee

Hans Kolbe & Co. Nachrichtenubertragungstechnik · DE

Inventors

Heinz Lindenmeier · Planegg, DE
Gerhard Flachenecker · Ottobrunn, DE
Jochen Hopf · Haar, DE
Leopold Reiter · Gilching, DE

Key dates

Filing date	Mar 8, 1990
Grant date	Aug 11, 1992
Priority date	—
Expiry date	Mar 8, 2010

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q1/1271
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.