| 摘要 |
PURPOSE:To receive radio waves with a high sensitivity without a bad influence upon the performance of an antenna, by setting the length of an opened stub wire, which is provided in a power supply terminal, to a prescribed wavelength of a very high frequency receiver. CONSTITUTION:A main element 2 of a glass antenna, a feed point 3 of the main element 2, and a terminal 4 for defogger of a defogger heating coil are provided on a window shield glass 1. The feed point 3 is connected to a receiver 6 for an AM radio, an FM radio, or the like through an antenna feeder 5. The terminal 4 is connected to a choke coil 8 for preventing noise through wires 7a and 7b connected to current supply terminals 4a and 4b of the defogger heating coil. Opened stub wires 10a and 10b where tips of wires are opened are provided independently of wires 7a and 7b. A length lS of wires 10a and 10b is set to the 1/4 of an optional receiving wavelength lambda in the receiving band of a very high frequency receiver such as the FM radio provided in the receiver 6. |
