| 摘要 |
<p>PURPOSE: To provide a low-cost, non-contact ID card which can be manufactured into the same shape as a magnetic stripe card with high quality level. CONSTITUTION: The non-contact ID card comprises a hollow coil conductor 1 for transmitting and receiving an electromagnetic wave to and from a card reader, and a board 4 which mounts an electronic circuit including an IC chip 5 for storing the card ID, wherein a groove 1b is so formed along the peripheral direction that the thickness of the conductor at the periphery of the hollow part becomes thinner than the other part of the conductor 1 at the inner periphery of the conductor 1.</p> |
