Reader include one group of aerial coil, be configured under the electromagnetically implantation of coupling device or within, the skin of human body. Implantable device may include loop aerial or other devices, be configured to and the reader device of at least one aerial coil to RF energy of the reception from reader. Aerial coil array is provided mounted to skin surface, to the array for being coupled in implanted device and coil between raising. In addition, the reading device be arranged for selecting the array of two aerial coils and for operate the coil selected for transmitting radio-frequency power in respective amplitude and relative phase to provide radio-frequency power to the implanted device although the efficiency of power transfer and reduction skin are exposed to RF energy.
