| 摘要 |
<p>Provided is a power transmission system for feeding energy to a device to be activated by using electric energy extracted from a power receiving antenna. The power transmission system comprises a drive device for generating an alternating current by receiving an electric power from a power source, and a power transmission antenna fed with the alternating current from the drive device, for generating an electromagnetic field. The power transmission antenna is provided with a resonance frequency adjusting circuit for adjusting and setting a resonance frequency.</p> |
