Windshield antenna defroster combination with radio interference reduction

US4095228A · kind A · utility

Assignee

• Hans Kolbe & Co. · DE

Inventors

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

Key dates

• Filing date: Nov 18, 1976
• Grant date: Jun 13, 1978
• Expiry date: Nov 18, 1996

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01Q1/52
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

An automotive vehicle has a window and a vehicle body. A window heater includes an arrangement of heating conductor sections provided on the window. A radio receiving antenna is located in the vicinity of the heating conductor sections. The heating conductor sections are comprised of at least two heating conductor sections together forming a bifilar conductor section group. The two heating conductor sections of each bifilar conductor section group are arranged approximately parallel and closely spaced to each other. The heating conductor sections are so interconnected that the heating current flowing through one of the sections of each group also flows through the other section of the group but in the opposite direction.