Table 1.

Average relative permittivity and effective conductivity for in vivo normal and malignant human liver tissue at 915 MHz and 2.45 GHz [54].

Frequency	Normal		Malignant
	${\mathrm{\epsilon }}_{\text{r}}$	$\text{σ }(\text{S}\cdot {\text{m}}^{-1})$	${\mathrm{\epsilon }}_{\text{r}}$	$\text{σ }(\text{S}\cdot {\text{m}}^{-1})$
915 MHz	59.94	1.16	64.09	1.34
2.45 GHz	57.55	1.95	62.44	2.18