摘要
采用平面波展开法数值计算了二维椭圆柱散射体声子晶体的带结构,并与圆柱散射体声子晶体的带结构进行比较,发现利用椭圆柱散射体可以获得较大的声子带隙.
In this paper, the band structures of the two-dimensional phononic crystals consisting of elliptic cylinders were calculated by using the plane wave expansion method. Comparing with that consisting of circular cylinders,it was found that larger band gap can be obtained by taking elliptic cylinders as scatters.
出处
《内蒙古师范大学学报（自然科学汉文版）》
CAS
2007年第1期75-78,共4页
Journal of Inner Mongolia Normal University(Natural Science Edition)
基金
内蒙古自然科学基金资助项目(200607010107)
关键词
声子晶体
平面波展开法
带结构
phononic crystal
plane wave expansion method
band structure
