A wireless power and data reception apparatus comprising: a power output unit (160; 360); one or more capacitors (C 2,1,..,C 2,m); an inductor (L 2); one or more switches (151, 153, 155, 157) corresponding to the one or more capacitors; characterized in that the one or more switches are configured for electrically connecting the one or more capacitors either to the inductor or to the power output unit, wherein the inductor and the one or more capacitors, once connected thereto, form a target resonator; the apparatus further comprising: a receiver configured to charge said one or more capacitors by receiving wireless power and modulated first data using the target resonator, said one or more capacitors being preferably arranged in a parallel manner; a switch controller (150; 330) configured to control said one or more switches corresponding to the one or more capacitors based on a charging time, during which time the one or more capacitors are connected to the inductor, to charge the one or more capacitors and a transfer time, during which time the one or more capacitors are connected to the power output unit, to transfer a power charged in the one or more capacitors and demodulated first data to a target device; and a demodulator configured to demodulate the modulated first data based on a power amount stored in the one or more capacitors at a point in time when the charging time is switched to the transfer time, said demodulator being preferably configured to demodulate the first data modulated by quantizing the power amount into N levels, based on predetermined mapping information. a power output unit (160; 360); one or more capacitors (C 2,1,..,C 2,m); an inductor (L 2); one or more switches (151, 153, 155, 157) corresponding to the one or more capacitors; characterized in that the one or more switches are configured for electrically connecting the one or more capacitors either to the inductor or to the power output unit, wherein the inductor and the one or more capacitors, once connected thereto, form a target resonator; the apparatus further comprising: a receiver configured to charge said one or more capacitors by receiving wireless power and modulated first data using the target resonator, said one or more capacitors being preferably arranged in a parallel manner; a switch controller (150; 330) configured to control said one or more switches corresponding to the one or more capacitors based on a charging time, during which time the one or more capacitors are connected to the inductor, to charge the one or more capacitors and a transfer time, during which time the one or more capacitors are connected to the power output unit, to transfer a power charged in the one or more capacitors and demodulated first data to a target device; and a demodulator configured to demodulate the modulated first data based on a power amount stored in the one or more capacitors at a point in time when the charging time is switched to the transfer time, said demodulator being preferably configured to demodulate the first data modulated by quantizing the power amount into N levels, based on predetermined mapping information. a receiver configured to charge said one or more capacitors by receiving wireless power and modulated first data using the target resonator, said one or more capacitors being preferably arranged in a parallel manner; a switch controller (150; 330) configured to control said one or more switches corresponding to the one or more capacitors based on a charging time, during which time the one or more capacitors are connected to the inductor, to charge the one or more capacitors and a transfer time, during which time the one or more capacitors are connected to the power output unit, to transfer a power charged in the one or more capacitors and demodulated first data to a target device; and a demodulator configured to demodulate the modulated first data based on a power amount stored in the one or more capacitors at a point in time when the charging time is switched to the transfer time, said demodulator being preferably configured to demodulate the first data modulated by quantizing the power amount into N levels, based on predetermined mapping information.