摘要
本文重点阐述了薄膜体声波滤波器的工作原理,以及影响其工作性能的各种特征参数。分析了薄膜体声波滤波器网格型和梯型滤波器工作原理,在此基础上提出了一种新型拓扑结构滤波器的设计思想。阐述了梯型-网格型-梯型滤波器、网格型-梯型-网格型滤波器两种不同结构的设计方案,并且利用ADS仿真设计软件对两种结构的滤波器进行了滤波特性和端口回损的比较。
In this paper,the working principle of thin film bulk acoustic filter and various characteristic parameters affecting its performance are described.The working principles of grid and trapezoid filters of thin film bulk acoustic wave filters are analyzed.On this basis,a new design idea of topological structure filters is proposed.Two different design schemes of ladder-grid-ladder filter and grid-ladder-grid filter are described.Furthermore,the filter characteristics and port loss of the two structures are compared by ADS simulation design software.
作者
黄贞松
彭春瑞
王诗元
HUANG Zhensong;PENG Chunrui;WANG Shiyuan(The 55th Research Institute of China Electronics Technology Group Corporation,Nanjing 210016,China;School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China)
出处
《现代信息科技》
2019年第17期37-39,共3页
Modern Information Technology
