Extrinsic Microwave Dielectric Properties of Layered Ceramics

Abstract

Abstract The microwave dielectric properties of the layered ceramics were investigated theoretically by finite element analysis. Different from the mono-layer ceramics whose microwave dielectric properties were intrinsic and independent of the measuring conditions, the layered ceramics exhibited extrinsic microwave dielectric properties. The stacking scheme, resonant mode and sample size had significant effects on the microwave dielectric properties of the layered ceramics as well as the volume ratio of the end-members, and the variation of the electric field distribution was responsible for such effects. The effect of the layer number was also investigated, and the microwave dielectric properties approached to parallel model with increasing the layer number. Keywords: Microwave dielectric propertieslayered ceramicsfinite element analysis Acknowledgment This work was supported by Natural Science Foundation of China under Grant No. 50802087, National Basic Research Program of China under Grant Nos. 2009CB623302 and 2009CB929503.