| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna coil configured by suppressing a large scale while reducing stray capacitance produced between lines.SOLUTION: The antenna coil includes: an antenna frame 7 having a plurality of arms 72 disposed in a radial shape; a coil 41 having a part located on a transmission plane P1 side, which is one side of a radiation plane in the radiation direction of the arms 72 of the antenna frame 7, and alternately having a part located on the transmission plane P1 side and a part located on an anti-transmission plane P2 side opposite to the transmission plane P1, and having a conductor line 40 wound on the arms 72 in a flat spiral shape, and being held by the plurality of arms 72; and a shield member 8 disposed along the radial plane of the antenna frame 7 on the anti-transmission plane P2. |
