Complex permittivity of sodium chloride solutions at microwave frequencies

Abstract The complex permittivity of aqueous solutions at 20 °C has been measured at concentrations between 0.001 and 5 mol/L and over a frequency range 0.13–20 GHz. The results were combined with literature values to derive empirical equations to predict the dielectric behavior of sodium chloride solutions between 0 and 5 mol/L and 5°C–35 °C. Bioelectromagnetics 28:264–274, 2007. © 2007 Wiley‐Liss, Inc.