WIRELESS POWER TRANSMISSION SYSTEM, POWER TRANSMISSION DEVICE, AND POWER RECEPTION DEVICE

To provide a wireless power transmission system that is capable of efficiently transmitting power. The power transmitting device includes first and second electrodes (11, 12); first and second connection (15, 16) lines that electrically connect the first and second electrodes and an alternating current power generating section; and a first inductor (13, 14) that is interposed between the first and second electrodes and at least one of the two output terminals of the alternating current power generating section. The power receiving device includes third and fourth electrodes (21, 22) having a total width of a dimension of less than or equal to »/2À, which is a near field; third and fourth connection lines (25, 26) that electrically connect the third and fourth electrodes and a load; and a second inductor (23, 24) that is interposed between the third and fourth electrodes and at least one of the two input terminals of the load. A resonance frequency of a coupler including the first and second electrodes and the first inductor and a resonance frequency of a coupler including the third and fourth electrodes and the second inductor is configured to be substantially equal.