| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize a non-contact IC card having a simply-structured tuning means by mutually connecting a plurality of capacitor pattens for increasing the capacity. SOLUTION: An antenna coil 13 is formed on a wiring board 11. An integrated circuit 14 is provided with a transmitting/receiving part, which generates power on the basis of a received signal radio wave, carries out computation of a received signal, and returns the computed result to the outside by surplus power, and a part of the transmitting/receiving part is connected to both ends of the antenna coil 13. An electrode 18 is connected to one end of the antenna coil, and a plurality of electrodes 19a-19c are fixed to the wiring board 11 opposedly to the electrode 18 while putting the wiring board 11 between them. By means of clipping connection parts 20a and 20b formed from a wiring pattern 121 to electrodes 19a and 19b by embossing using a needle die, electrical connection is provided. In this way, a tuning circuit is formed between a capacitor, which is formed between the electrodes 19a and 19b and the electrode 18, and the antenna coil 13, and transmission and receipt is made possible by the integrated circuit 14.</p> |
