In order to use an antenna coil, by an embedded winding construction method, NC control of wire diameter, winding pitch, IC loading position, etc. is required
Since copper wire with high Q characteristic is typical for an antenna material, the IC card RF tag is excellent in communication distance and the anti-collision efficiency can be obtained.
If the characteristics of the embedded winding construction method and copper wire are employed efficiently, the miniaturization (10x30mm) of RF tag is possible.
