Patent · US Expired

Flat antenna

US5818394A · kind A · utility

17Cited by

5References

12Claims

0Family size

Assignee

FUBA Automotive GmbH · DE

Inventors

Mehran Aminzadeh · Braunschweig, DE
Manfred Burkert · Bockenem, DE
Michael Daginnus · Kirchlengern, DE
Shun-Ping Chen · Düsseldorf, DE

Key dates

Filing date	Apr 4, 1997
Grant date	Oct 6, 1998
Priority date	—
Expiry date	Apr 4, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q9/0407
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A flat antenna for mounting on windowpanes of motor vehicles reduces the dimensions of the mass reference area of the mass plane, and the structural height without unfavorably influencing the functions and operating parameters of the antenna. The mass reference area has a trough-like shape, is centrally positioned under an aerial segment, and has conductive coating impermeable to the operating frequency of the antenna. The inside and outside conductors of the coaxial feed cable are connected to the aerial segment and mass reference area shifted to outside the aerial elements and thereby enables a significant reduction in overall dimensions.

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