固-液结构平板掺杂声子晶体的滤波特性  

Filtering Feature of Solid-liquid Flat Panel Doping Phononic Crystal

作　　者：刘启能[1] 

机构地区：[1]重庆工商大学计信学院,重庆400067

出　　处：《压电与声光》2011年第1期5-8,12,共5页Piezoelectrics & Acoustooptics

基　　金：重庆市教委科技项目基金资助项目(KJ080720)

摘　　要：为了研究一维固-液结构平板掺杂声子晶体的滤波特性,利用一维固-液结构平板掺杂声子晶体中弹性波横向受限的条件,推导出弹性波在一维固-液结构平板掺杂声子晶体中各个模式满足的关系式。研究了弹性波各模式的缺陷模随模式量子数和杂质厚度的变化规律。这些结果可用于声子晶体滤波器的设计。For studying the filtering properties of the one-dimensional solid-liquid flat panel doping phononic crystal,the condition of elastic wave restricted in horizontal direction was applied.The conditions that each mode should be satisfied were concluded from the one-dimensional solid-liquid flat panel doping phononic crystal.The dependences of defect modes on the mode quantum number and doping thickness were obtained for elastic wave.These results could be used to design multi-channel filter.

关 键 词：平板声子晶体 弹性波 受限 滤波 

分 类 号：TN04[电子电信—物理电子学] O436[机械工程—光学工程]