  Soil as a complex multi-phase porous material typical exhibits several
distributed relaxation processes in the frequency range from 1 MHz to
approximately 10 GHz of interest in applications. To relate physico-chemical
material parameters to the dielectric relaxation behavior, measured dielectric
relaxation spectra have to be parameterized. In this context, a broadband
numerical 3D FEM study was carried out to analyze the possibilities and
limitations in the characterization of the relaxation processes in complex
systems.
