Wireless power transfer via RFID technology for wearable device applications

In this paper, we propose that contactless resonance coupling transformers as power transfer systems in wearable smart devices. Then, the wearable device obtains electrical energy from radio frequency identification (RFID) technology. Inductive coupling used to transmit the energy to different functional areas in the wearable device drives various integrated circuits. Based on experimental results, this system is a stable and efficient method to transfer energy and signals.