| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain an IC card that mounts two antennas, a dual IC chip and a contactless type IC chip, and has an excellent communication distance with communication frequencies of two IC chips close.SOLUTION: An IC card has: a base material 11; a first coil pattern 12 that is formed in the base material to have both ends connected to a first terminal pair 16; a second coil pattern 32 that is formed in the base material to have both ends connected to a second terminal pair 36; a dual IC chip 1 that has contact terminals 7A and 7B, is mounted so as to connect to the first terminal pair, and performs contactless type communication using the first coil pattern and performs contact type communication using the contact terminal; and a contactless communication IC chip 2 that is mounted so as to connect to the second terminal pair, and performs contactless type communication using the second coil pattern. The contactless type communication using the first coil pattern and the contactless type communication using the second coil pattern are configured to be independently performed in the same communication frequency band, and one of the first coil pattern and the second coil pattern is configured to be formed on an inner side of the other thereof.</p> |
