Dielectric measurements and analysis for the design of conductor/insulator artificial dielectrics.

摘要

The complex dielectric constant of an artificial dielectric formed from a dispersion of metallised microspheres in paraffin wax are presented for a range of filler volume fractions. The use of this data in the design of 'dielectrically' functional materials is discussed in terms of the challenges encountered in producing reliable measurements and in terms of the theoretical tools available for predicting the effective dielectric constant of mixtures. The paper highlights the dilemma faced by the design engineer in selecting the appropriate blend of theory and experiment when tailoring the electromagnetic response from a slab of composite material.