Microwave study of ferroelectrics in waveguide

Abstract

Peculiar feature of ferroelectrics is high dielectric permittivity ε which sometimes is accompanied by very big loss tangent tanδ. This is a reason of difficulties to obtain accurate characterization despite of variety of techniques available. This report is devoted to the selection of proper waveguide method for specific cases of bulk or film materials investigation to obtain reliable data of their ε and tanδ.