| 摘要 |
[Problem] To provide an antenna device that, even with a stand-type double case structure, can prevent deterioration of the antenna performance and simplify such structure. [Solution] Provided is an antenna device (1) that has a double case structure in which an inner case (13) is covered by an outer case (15), the inner case having an accommodation space formed therein for accommodating a coil element (12) or the like. An antenna element (14) is interposed between the outer surface of the inner case (13) and the inner surface of the outer case (15), and the antenna element (14) is electrically connected to the coil element (12) which is inside the accommodation space, while the water-tightness of the accommodation space is maintained. |
