Geometry Optimization Approaches of Inductively Coupled Printed Spiral Coils for Remote Powering of Implantable Biomedical Sensors

Table 3

Optimal inductive link coil designs by using genetic algorithms.

Parameters	Primary coil	Secondary coil
Outer diameter ()	80 (mm)	20 (mm)
Inner diameter ()	10 (mm)	11 (mm)
Conductors’ width ()	1.5 (mm)	0.25 (mm)
Spacing between conductors ()	3 (mm)	0.35 (mm)
Number of turns ()	8	8
at = 13.56 MHz	80.6%