| 摘要 |
The antenna device disclosed includes an insulating antenna case, an antenna base, and an umbrella-type element. A lower surface of the insulating antenna case is open and a housing space is formed in the insulating antenna case. The antenna base includes an insulation base on which the antenna case is fitted, and a conductive base which is smaller than the insulation base and is fixed to the insulation base. The umbrella-type element is provided on the antenna base in such a way that a rear section thereof is located above the insulation base and a front section thereof is located above the conductive base. |
