卷积完全匹配层截断三维金属圆柱波导的应用  

Application of CPML to Truncation of 3D Cylindrical Mental Waveguides

作　　者：孙桂娟[1] 

机构地区：[1]吉林大学物理学院相干光与原子分子光谱教育部重点实验室,长春130021

出　　处：《吉林大学学报（理学版）》2006年第3期450-454,共5页Journal of Jilin University:Science Edition

基　　金：国家自然科学基金(批准号:10074020).

摘　　要：讨论在直角坐标系下用卷积完全匹配层(CPML)截断圆柱波导开放边界的模型,给出了CPML的构造参数.计算了不同频率和模式激励源作用下CPML反射引起的相对误差,数值结果表明,最大相对误差都小于-70dB,能够满足模拟计算的要求.This paper deals with the problem of truncating the open boundaries of cylindrical waveguides under the rectangular coordinate system, and gives the CPML＇ s construction parameters. The performance of CPML was simulated when it was used to truncate the cylindrical waveguides excited by the sources with different frequencies and modes. The numerical results show that the maximum relative error is less than -70 dB, which can meet the requirement of numerical simulation.

关 键 词：卷积完全匹配层 圆柱波导 开放边界 相对误差 

分 类 号：O441.4[理学—电磁学] O411.3[理学—物理]