用正交法优化BST/MTO铁电移相器材料性能  

Optimization of the Properties of BST/MTO Ferroelectric Material for Phase Shifters by Orthogonal Design

作　　者：金宇龙[1] 周洪庆[1] 吴洪忠[1] 刘敏[1] 蒋微波[2] 黄志文[2] 杨春霞[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]南京电子技术研究所,江苏南京210013

出　　处：《电子元件与材料》2003年第11期10-12,共3页Electronic Components And Materials

基　　金：国防科学技术工业委员会资助项目(MKPT-03-155)

摘　　要：利用正交试验方法研究了Bi2O3、MnCO3、SnO2等添加剂对钛酸锶钡/钛酸镁(BST/MTO)复合铁电移相器材料介电常数r、介质损耗tg以及调谐性T等性能的影响,并对影响机理作了初步探讨。实验结果表明选择合适种类与数量的添加剂能有效提高铁电移相器材料的性能。通过正交试验获得综合性能优异的移相器材料性能:r=315,tg=0.002 8,T=14.27%。The effects of additives such as Bi2O3, MnCO3, SnO2 on the properties of barium strontium titanate/magnesium titanate (BST/MTO) compound ferroelectric material of phase shifters, including permittivity, loss tangent and tunability, are studied by orthogonal design. The mechanism is also presented and discussed. The results show that the material properties can be dramatically improved by properly controlling the additives. Of the obtained material, r is315,tgd 0.0028 and T 14.27%.

关 键 词：正交试验 铁电材料 移相器 钛酸锶钡 钛酸镁 

分 类 号：TN2[电子电信—物理电子学] TM22[一般工业技术—材料科学与工程]