Patent · US Expired

Window antenna and defroster with means for reducing radio interference

US4070677A · kind A · utility

14Cited by

3References

22Claims

0Family size

Assignee

Hans Kolbe & Co. · DE

Inventors

Hans Heinrich Meinke · Gauting, DE
Heinz Lindenmeier · Planegg, DE
Friedrich Landstorfer · Munich, DE
Gerhard Flachenecker · Ottobrunn, DE

Key dates

Filing date	Nov 18, 1976
Grant date	Jan 24, 1978
Priority date	—
Expiry date	Nov 18, 1996

Classification

Technology area (CPC H)Electricity
CPC primaryH01Q1/1278
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A vehicle window heater includes an arrangement of heating conductors provided on the window. A radio receiving antenna is located in the vicinity of the heating conductors. An interference-suppressing arrangement decreases the effect upon the antenna of interference fields emanating from the heating conductors and includes an arrangement of auxiliary conductors located in the vicinity of the heating conductors. The auxiliary conductors along their lengths are insulated from the heating conductors. Each auxiliary conductor at at least one of its ends is conductively connected to the vehicle body for high-frequency condition.

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