PURPOSE: To improved a multidirectional reception sensitivity by providing a specifically designed second antenna on a space of a 1st antenna at the upper space section of a defogging heating wire at the rear windowpane.
CONSTITUTION: Inside the car of a windowpane defogging 1 comprising an automobile rear windowpane, a heating wire 2, bus bar 3, and the 1st antenna 4 consisting of horizontal and vertical wires are provided. At the upper space of the antenna 4, a 1st element 61 which extends outside from the vertical wire of the U-shaped element and extends downward outside the bus bar to be connected to a power supply point 5 at the lower side of the wire 2 is provided. In one area of the lower space of the wire 2, the 2nd element 62 consisting of the horizontal wire and the connection element is connected to a power supply point 5. The 2nd antenna 6 is made by the 1st and 2nd elements.
Shingo Tadokoro
Tokio Tsukada
