Numerical and experimental investigation of metamaterial structures used in non-destructive dielectric material testing

Abstract

In the paper the investigation of the dielectric properties of dielectric material will be described, using an artificial metamaterial structure over the aperture of waveguide sensor with aim of increasing the sensitivity of classical waveguide sensor. The possibility to use a metamaterial structure for upgrading properties of classical waveguide sensor will be emphasized by numerical simulation of 2D metamaterial structure properties and experimental measurements to determine dielectric properties of dielectric materials. The mechanical properties of the dielectric samples, alder wood in our case, are determined also by Dynamic Mechanical Analysis, in order to validate the microwave approach.