采用EWC单相单向换能器的SAW滤波器组  

SAW Filter Bank Using EWC/SPUDT Technology

作　　者：欧黎[1] 黎阳[1] 吴影侠 

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4期224-226,共3页Piezoelectrics & Acoustooptics

摘　　要：采用带旁瓣的ＥＷＣ单相单向换能器技术，研制中等相对带宽（５．６％～７．１％）和具有好矩形度的声表面波滤波器组。该滤波器组用于通信电子对抗，工作频率为３０～４０ＭＨｚ，各信道的矩形系数为１．６，信道插入损耗１５ｄＢ，滤波器组输入端口的驻波系数小于１．５。A SAW filter bank with medium bandwidth(5.6%～7.1%)and good rectangularcoefficient has been developed using electrode width control/single phase unidirectional transducer(EWC/SPUDT)technology The filter bank will be used for communication electronic antagonismin operation frequency of 30～40 MHz.For each channel,the rectangular coefficient is 1.6,the insertion loss is 15 dB,and the standing wave ratio at input end of the filter is<1. 5.

关 键 词：声表面波滤波器 EWC SAW 单相单向换能器 

分 类 号：TN65[电子电信—电路与系统] TN713