Microwave dielectric properties of (Ca0.8Sr0.2)(SnxTi1−x)O3 ceramics

In this paper, we study the behavior of the B-site behavior with the incorporation of Sn4+ ion in (Ca0.8Sr0.2)TiO3 ceramics. An excess of Sn4+ resulted in the formation of a secondary phase of CaSnO3 and SrSnO3 affecting the microwave dielectric properties of the (Ca0.8Sr0.2)(SnxTi1−x)O3 ceramics. The dielectric properties of the (Ca0.8Sr0.2)(SnxTi1−x)O3 ceramics were improved because of the solid solution of Sn4+ substitution in the B-site. The temperature coefficient of resonant frequency (τf) of the (Ca0.8Sr0.2)(SnxTi1−x)O3 ceramics also improved with increasing Sn content.