| 摘要 |
[Problem] To provide a resonator whereby leakage electromagnetic field can be reduced, and a wireless power transmission device. [Solution] According to one embodiment of the present invention, a resonator is provided with a first coil for wireless power transmission, and a second coil. The second coil is magnetically coupled to the first coil, and is electrically separated from the first coil. The first coil and/or the second coil is provided with a magnetic core. |
