Dielectric properties of ZnNb2O6/epoxy composites

The dielectric properties of epoxy composites with various contents of ZnNb2O6 filler were investigated at microwave frequencies. Increasing frequency from 1 GHz to 9 GHz did not affect the composites’ dielectric constants but increased their dielectric losses; both of which depended on ZnNb2O6 content and showed typical values of 9.63 and 0.019, respectively, at 9 GHz in the composite with 0.6 volume fraction ZnNb2O6. The results were compared with theoretical models and shown to be well described by the EMT model.