Embroidered Coils – Integration of Wireless Charging Receiver Coils in Smart Garments

In this paper, four kinds of conductive threads were studied and their uses on embroidered coils for wireless charging system were examined. The results show that the embroidered coils can achieve a quality factor of at least 3 without compromising the mechanical performance of the textile. A coil was embroidered directly on a T-shirt which shows that the fabrication of embroidered receiver (RX) coil might be integrated into the clothing manufacturing process.