| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact IC card whose strength and appearance are excellent, capable of finely adjusting a resonance frequency. SOLUTION: This non-contact IC card is provided with a coil part 12a formed by winding a conductor with an insulating coating like a coil and a spiral part 12b arranged by spirally winding one edge of the conductor around the coil part 12a so that a capacitance adding part for adding capacitance can be formed. Thus, the capacitance can be easily changed by changing the number of windings of the spiral part 12b, and a resonance frequency can be easily adjusted. |
