$(1-x)CaTiO_3$-xLa$(Zn_{1/2}Ti_{1/2})O_3$ 계의 마이크로파 유전 특성

Microwave dielectric properties of (1-x)$CaTiO_3-xLa(Zn_{1/2}Ti_{1/2})O_3$ System

Phsysical and dielectric properties of $(1-x)CaTiO_3-xLa(Zn_{1/2}Ti_{1/2})O_3$ ceramics were investigated at the temperature range of $25^{\circ}C$ to $80^{\circ}C$ at the frequency of 6 GHz. As increasing addition of the amount of $La(Zn_{1/2}Ti_{1/2})O_3$ to x = 5 mol,Q value was increased due to grain growth and increase of density. For more addition, Q value decreased due to electrical defect. Temperature coefficient of resonant frequency could be controlled by the amount of $La(Zn_{1/2}Ti_{1/2})O_3$, which could be explained by volume mixing rule.