Patent · US Expired

Window antenna for a motor vehicle body

US5406295A · kind A · utility

29Cited by

7References

5Claims

0Family size

Assignee

Flachglas Aktiengesellschaft · DE

Inventors

Detlef Baranski · Recklinghausen, DE
Peter Reichmann · Gelsenkirchen, DE
Peter Paulus · Munster, DE

Key dates

Filing date	Feb 24, 1993
Grant date	Apr 11, 1995
Priority date	—
Expiry date	Feb 24, 2013

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q5/378
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A window antenna for a motor vehicle body opening in which the antenna is used for mobile radio in a double-band operation with bands have a long wavelength L and a short wavelength K. Two monopoles L/4 and K/4 are electrically connected by a foot portion to which the core of the coaxial feeder cable is adjoined. Two radials corresponding in dimensions to the monopoles can extend along at least one edge of the pane and parallel to the frame member. The radials are connected to the shielding. The spacing of the radials from the frame, the width of the radials and their lengths are selected so that the radiation characteristics are optimized and standing surface waves on the shielding of the cable is avoided.

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