| 摘要 |
The present invention relates to an electronic device that suppresses reduction in reception sensitivity and occurrence of distortion when IC cards are used while stacked. A loop antenna (1) equipped to the IC card has four turns, and it is designed so that one turn comprises a linear portion (L2), a curved line portion (L3), a linear portion (L4) and a curved line portion (L5), for example. When two loop antennas (1) having such a shape is stacked with being faced in the opposite directions, the corners thereof are not overlapped. For example, the corner formed of the curved line portion (L3) and the linear portion (L4) of the loop antenna (1) is overlapped with the curved line portion (L3) of the loop antenna (1) superimposed with being faced in the opposite direction so that the corners are not overlapped and the overlap portion is reduced as a whole. The present invention may be applied to an IC card for receiving/transmitting data under non-contact state.
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