Antifogging plate glass stretched balanced feed antenna

Abstract

Abstract PURPOSE:To ensure a high-efficiency connection between the antenna provided to the antifogging glass at the rear part of an automobile and the receiver, by using the balance-unbalance converter such as a balun or the like to the coaxial cable. CONSTITUTION:Plural numbers of heating conductive wires 11 are provided between the common collecting electric wire 12 and buses 13 and 13a on a pair of antifogging glass plates. And a pair of very high frequency reception antenna elements 19 and 20 are provided on the surface of the glass which is out of the electric wire groups 10 and 10a. Then the opposite terminals 21 and 22 of antennas 19 and 20 are connected to the balun 23, and the balun 23 is connected to the coaxial cable 24 to be then led to the receiver. In this way, a high-efficiency feeder connection is secured without causing any noise of the transmission circuit nor the variation of the antenna characteristics due to the types of automobiles, etc.

Inventors

• 👤 Kaoru Sakurai
• 👤 Harunori Murakami
• 👤 Toshio Torii

Bibliographic Details