| 摘要 |
The present invention provides a communication device that, when the communication device is incorporated in an electronic device, can reduce the size and the thickness of a housing of the electronic device while maintaining communication characteristics. The communication device includes an antenna coil (11a) that is arranged on a peripheral part (134) of a housing (131) surface facing a reader-writer (120) of a mobile phone (130), a magnetic sheet (13) that attracts the magnetic filed transmitted from the reader-writer (120) to the antenna coil (11a), and a communication processing unit (12) that is driven by a current flowing through the antenna coil (11a) and communicates with the reader-writer (120). The magnetic sheet (13) is arranged to be closer to reader-writer (120) than the antenna coil (11a) in the central part (132a), and the antenna coil (11a) is arranged to be closer to the reader-writer (120) on the outer periphery (130d) side, and at least a part of the conductive line of the antenna coil (11a) is superimposed in a direction orthogonal to a circuit board (132). |
