Optimization of the Coupling Coefficient of the Inductive Link for Wireless Power Transfer to Biomedical Implants

Table 2

Geometric parameters of a proposed inductive link.

Parameters		Values
Tx coil	Outer radius (Rout)	26 mm
	Inner radius (Rin)	14 mm
	Wire diameter (r1)	0.287 mm (AWG 23)
	Parameter b	6 mm
	Number of turns (n1)	7
Rx coil	Radius (R2)	5 mm
	Wire radius (r2)	0.04 mm (AWG40)
	Number of turns (n2)	5
	Wire pitch (s)	0.7 mm
Tx-to-Rx distance (h)		20 mm
Tx-to-tissue distance		2 mm
Load resistance (RL)		1 kΩ