| 摘要 |
A wireless power transmission system is designed to transmit power between a power-transmitting resonator 105 and a power-receiving resonator 107, which are implemented as inductors LL and Ls of mutually different sizes, by a non-contact method over a resonant magnetic field with a resonant frequency f0. When measured at the resonant frequency f0, the resistance value Rs per unit length of at least a part of wiring that forms the smaller inductor Ls is lower than that (RL) of wiring that forms the other larger inductor LL. In this manner, high transmission efficiency can be maintained between those power-transmitting and power-receiving resonators without increasing the overall length of wiring used wastefully.
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