| 摘要 |
PURPOSE:To obviate such an inconvenience as a case in which many pieces of pole antenna have been provided in parallel, and also, to always secure the best receiving performance, by providing a ferrite core which has been embedded into a car body wall, and a pickup coil which has been wound to the ferrite core and has been connected to a glass antenna element. CONSTITUTION:In a recessed part 13 of a car body outside plate 14, a ferrite core 16 is embedded in the car width direction, and a pickup coil 18 which has been connected to an antenna element 12 is wound and installed to this ferrite core 16. To the pickup coil 18, a capacitor 20, a variable capacitor 22, for instance, a variable capacitor, a variable capacity diode, etc., which have been connected in series to be turned to a broadcast wave are connected in parallel. Also, to the ferrite core 16, another pickup coil 24 is wound, one end thereof is brought to body-earth to a car body, and the other end is connected to a receiver (not shown in the figure) through an impedance converter 26 and a coaxial cable 28.
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