Biotelemetric Wireless Intracranial Pressure Monitoring: An In Vitro Study

Table 3

Dielectric properties of the tissues and water [14–16].

Tissue	Relative permittivity	Conductivity [S/m]
Skin (fat layer)	12.08 (at 13 MHz); 7.91 (at 32 MHz)	0.030 (at 13 MHz); 0.033 (at 32 MHz)
Skull (compact bone)	31.33 (at 12 MHz); 20.44 (at 32 MHz)	0.045 (at 13 MHz); 0.053 (at 32 MHz)
Water	80 (at 20°C)	0.005–0.05