Improving the efficiency of magnetic coupling energy transfer by etching fractal patterns in the shielding metals*

Qing-feng LI,Shao-bo CHEN,Wei-ming WANG,Hong-wei HAO,Lu-ming LI

Fig. 10 Suppressing eddy current effects of slots in multiple metal layers (a) A titanium board is present between the transmitting coil and the receiving coil; (b) Two additional PCB copper layers are present above the receiving coil; (c) Two additional PCB copper layers with one layer slotted are present above the receiving coil; (d) Two additional PCB copper layers with both layers slotted are present above the receiving coil