通讯用宽带陶瓷滤波器  

Wideband Ceramic Filter for communication

作　　者：林庭芬 

机构地区：[1]四川压电与声光技术研究所

出　　处：《压电与声光》1996年第3期179-181,共3页Piezoelectrics & Acoustooptics

摘　　要：压电陶瓷滤波器是通讯设备的重要元件之一。陶瓷滤波器的带宽受压电材料机电耦合系数限制，相对带宽一般小于６％。采用锑锰锆钛酸铅压电陶瓷材料，厚度振动模式振子和差接桥型电路的宽带陶瓷滤波器，其通带宽度可达１５％。Piezoelectric ceramic filter is a important device in communication equipment,however,its bandwidth is limited by electromechanical coefficient of piezoelectric material,the relative bandwdth is usually less than 6%.This paper presents a piezoelectric ceramic filter with differential bridge circuit and thickness vibration mode using Ph(Sb2/3Mn1/3)O3-PbZrO3-PbTiO3 material,its passband width is up to 15%.

关 键 词：压电陶瓷滤波器 厚度振动模式 差接桥型电路 

分 类 号：TN713.3[电子电信—电路与系统]