Debye Constants for Biological Tissues From 30 Hz to 20 GHz

Abstract

Debye modeling for the dielectric properties of dispersive materials facilities its incorporation into the FDTD formulation. This paper generates a comprehensive list of multi-term Debye coefficients for 16 biological tissues. A numerical technique is developed to accurately fit one, two, and three-term Debye equations with the published experimental data of biological tissues. Using the generated coefficients, the reconstructed complex permittivity is shown to be in excellent agreement with the corresponding measured data over the frequency rang 30 Hz to 20 GHz.