New frequency-dependent parametric modeling of dielectric materials

Abstract

The recent increase in the use of electromagnetic (EM) waves raises more and more concern about the impact of EM radiation. Dielectric properties of materials are important indications of the depth of EM propagation and dispersion. This led to substantial research on the parametric modeling of dielectric properties of materials. In this paper, such modeling of material is studied for frequencies up to 100 GHz. The new model proposed was developed to describe the variation of dielectric properties of dielectricity as a function of frequency using experimental results on dielectric dispersion. Approximate modeling of electrical parameters can be very useful in that it allows the engineer to avoid complex equations of conventional models. Specifically, this work analyzes the dielectric properties of human parts, water, soil and vegetation. The new model is proposed for those materials. The theoretical background on those materials was investigated and simulation results on complex permittivity, the attenuation and phase constants of wave, of each of those materials were performed to assess the accuracy of the new approximate model. This model has further enabled conclusions in terms of measurable biophysical parameters.