| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an antenna device capable of performing satisfactory communication with external equipment, if a magnetic substance is disposed between a conductor and an internal conductor, in electronic equipment having a metal case and a circuit board.SOLUTION: The antenna device includes a conductor 13, a coil 11 wound with a conductor and having an opening part at the center part thereof, and a magnetic substance 12 in order from the nearest position to the external equipment of an opposite party, with which short range radio communication is performed, to the farthest. At the plan view of the antenna device from the external equipment side, a part of the coil 11 is disposed to the outer side than the outer peripheral edge of the conductor 13 and the outer peripheral edge of the magnetic substance 12.</p> |
