ANTENNA APPARATUS, WIRELESS POWER TRANSMISSION APPARATUS, AND WIRELESS POWER TRANSMISSION SYSTEM
An antenna apparatus for wireless power transmission, the antenna apparatus includes: two electrodes being perpendicular to each other; a first coil connecting the two electrodes; and a second coil magnetically coupled to the first coil.
1 . An antenna apparatus for wireless power transmission, the antenna apparatus comprising:
two electrodes being perpendicular to each other;
a first coil connecting the two electrodes; and
a second coil magnetically coupled to the first coil.
2 . The antenna apparatus according to claim 1 , wherein the two electrodes and the first coil constitute a resonator that resonates at an output frequency of a power transmission/reception circuit for wireless power transmission.
3 . The antenna apparatus according to claim 2 , wherein the resonator and a ground of the power transmission/reception circuit are connected using a ground line.
4 . The antenna apparatus according to claim 1 , wherein the antenna apparatus transmits power using surface waves or receives power transmitted using surface waves.
5 . A wireless power transmission apparatus comprising:
the antenna apparatus of claim 1 ; and
a power transmission/reception circuit connected to the antenna apparatus via the second coil of the antenna apparatus.
6 . A wireless power transmission system comprising:
a wireless power transmission apparatus on a power transmission side, which is the wireless power transmission apparatus of claim 5 ; and
a wireless power transmission apparatus on a power receiving side, which is the wireless power transmission apparatus of claim 5 .