| 摘要 |
The present invention relates to a coil structure which can increase wireless power transmission efficiency in various environments, and a wireless power transmission apparatus using the same. According to an embodiment of the present invention, the coil structure comprises: a first coil wound with a polygonal shape on one plane; at least one second coil wound around the first coil; and at least one third coil wound around the first coil in a direction perpendicular to a winding direction of the at least one second coil. |
