Wireless power transmission device capable of forming magnetic field space, and magnetic field space formation method

A method of forming a magnetic field space in a wireless power transmission apparatus configured to supply power from a power-supplying module comprising at least a power-supplying resonator to a power-receiving module comprising at least a power-receiving resonator, by means of a resonance phenomenon, wherein

• setting is carried out so that a transmission characteristic with respect to the power-source frequency of the power, of the power-supplying resonator and the power-receiving resonator, has two peak bands;
• and
• the power-source frequency of the power to be supplied to the power-supplying module is set to a power-source frequency band corresponding to any of the two peak bands of the transmission characteristic, thereby
• forming a magnetic field space between the power-supplying resonator and the power-receiving resonator, the magnetic field space having a magnetic field strength smaller than a strength of a surrounding magnetic field.