| 摘要 |
PURPOSE:To elevate the receiving gain of radio waves from the front and the rear of a car, by providing the start point of an antenna for very high frequency so that it is shifted from the longitudinal center line of the window glass having a heating conductor. CONSTITUTION:The antenna 17 for very high frequency stretches out in parallel with the heating conductor 12 from the start point 16, its tip is bent in a channel shape, and the tip forms an opening terminal. Also, the other end terminal of the stub connected to the start point 16 is connected to the connection point 22 on the heating conductor 12. And, a straight line connecting the start point 16 and the connection point 22 is in parallel with the longitudinal center line of the flat glass 1 and also it is shifted from the center line. When such an antenna for very high frequency is installed, length of the antenna can be set to desired length irrespective of size of the window glass, and therefore, it is possible to elevate the gain as to incoming radio waves from the front and the rear of a car. |
