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

Table 1 Results for different slot fractal patterns in 4

Scheme PE(%) PT(%) η(%) PT/PTR(%) Slots length(mm) Suppression efficiency(%/mm) Fig. 4a 10.1 98.7 92.8 88.0 245.66 0.366 Fig. 4b 23.9 96.6 84.1 74.7 280.88 0.271 Fig. 4c 13.3 98.2 90.7 84.3 140.00 0.619 Fig. 4d 11.5 98.4 91.8 86.7 247.50 0.357 Fig. 4e 4.0 99.6 97.1 95.2 489.25 0.196 Fig. 4f 16.6 97.5 88.5 81.9 125.00 0.667 Fig. 4g 6.5 99.1 95.3 92.8 292.50 0.320 Fig. 4h 3.5 99.6 97.4 96.4 635.00 0.152 No slot 100.0 81.8 51.1 38.6 Null Null No metal Null 100.0 100.0 100.0 Null Null