摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic field suppressor capable of automatic tuning.SOLUTION: An antenna 60 includes a coil L. An automatic tuning auxiliary circuit 100 is coupled with the antenna 60. A first terminal P1 and second terminal P2 of the automatic tuning auxiliary circuit 100 are coupled with the antenna 60. A plurality of switches SW are provided between N (N is a natural number) auxiliary capacitors C, the first terminal, and the second terminal. A controller 102 switches each of the plurality of switches SW in synchronization with a wireless transmitter. |