| 摘要 |
PROBLEM TO BE SOLVED: To provide an IC card with much improved transmission/reception performance of a UHF band antenna and an HF band antenna.SOLUTION: An IC card 1 comprises a rectangular substrate 2, a UHF band antenna 3 which is mounted along a long side direction of the substrate 2, and transmits and receives information by UHF band electromagnetic waves, and an HF band antenna 4 which is mounted in parallel with the UHF band antenna 3, and transmits and receives information by HF band electromagnetic waves. A long side dimension of the HF ban antenna 4 is longer than a long side dimension of an impedance adjustment unit 321 in the UHF band antenna 3, and is set to a range of 1/2 to 2/3 of the long side dimension in the UHF band antenna 3. |
