2 GHz宽带低损耗SAW滤波器的研制  

Development of Wideband and Low IL SAW Filter at 2 GHz

作　　者：蒋欣[1] 金剑[1] 冷俊林[1] 蒋世义[1] 董加和[1] 胡杨[1] 刘晓莉[1] 

机构地区：[1]中国电子科技集团公司第26研究所,重庆400060

出　　处：《压电与声光》2014年第1期16-18,共3页Piezoelectrics & Acoustooptics

摘　　要：利用射频电路模拟软件中构建的声表面波(SAW)低损耗滤波器设计工具,对S波段SAW滤波器的设计技术展开研究。通过建立集总参数模型,分析高频下封装效应对滤波器性能的影响,并成功研制出中心频率达2.2GHz,最小插入损耗为-3dB,相对带宽达到7%的SAW滤波器,测试与仿真结果基本一致。In this paper,a new SAW filter design tool based on RF circuit design software has been developed.Using this new design tool,the design methods of S band SAW filter has been investigated.In order to analysize the packaging on the performances of SAW filter under high frequency,the lumped parameter model of packaging has been established.A SAW filter at 2.2 GHz,with the insertion loss of-3 dB and the relative band width of 7％,has been developed.The simulation result and measurement result almost agreed well.

关 键 词：S波段 声表面波滤波器 低损耗 

分 类 号：TN65[电子电信—电路与系统]