A microwave dielectric measurement technique for high permitivity materials

Abstract

A microwave measurement technique has been developed for the characterization of high dielectric constant (100 to 10,000), and high dielectric loss (0.2 to 0.7) materials. The method is based on the frequency dependence of electromagnetic wave transmission through a dielectric slab. It is a useful technique for the dielectric measurement of relaxor ferroelectric materials, and an example is given for the Pb(Mg_1/3Nb_2/3)O₃-PbTiO₃ system. The rapid developments in network analysis have made this measurment method possible.