Electric field coupling type high power wireless power transfer with leakage electric field strucure

In consideration of the electric field in the near region, we are conducting a study with the purpose of achievement of a wireless power transmission system using the electric field resonance. In this report, a comparison of the electric field coupling type and the magnetic field coupling type has been conducted and it was demonstrated by the equivalent circuit analysis that the series resonance structure in the electric field coupling type makes it possible to transmit the electric power with high efficiency even at a remote distance. Furthermore, we have mounted the system in a mobility car and have demonstrated that it is possible to transmit the power in the kW order.