0.17($Ba_{0.53}$, $Pb_{0.47}$)0-$0.16Nd_2O_3$-$0.67TiO_2$ 세라믹스의 고주파 유전특성에 미치는 Mn 첨가의 영향

Effect of Mn Dopping on the Microwave Dielectric Properties of 0.17($Ba_{0.53}$, $Pb_{0.47}$)0-$0.16Nd_2O_3$-$0.67TiO_2$ Ceramics

Dielectric properties were investigated at Mn doped 0.17($Ba_{0.53}$, $Pb_{0.47}$)0-$0.16Nd_2O_3$-$0.67TiO_2$ system in microwave frequency. It was observed that dielectric constant of 90.1, quality factor of 1320 (at 3.8GHz) and temperature coefficient of resonance frequency 2.3 ppm/$^{\circ}C$ for 0.5wt% Mn doped 0.17($Ba_{0.53}$, $Pb_{0.47}$)0-$0.16Nd_2O_3$-$0.67TiO_2$ system in sintering condition $1290^{\circ}C$/2hr. The quality factor increase due to the compensation effect of Mn ions yp to 0.5wt% and the decrease due to the interface relaxation effect. The temperature coefficient of resonance frequency increases to negative direction with increasing the amounts of Mn.