APPLICATION OF THE PML ABSORBING BOUNDARY CONDITION TO FD-TD SIMULATION  

作　　者：Guo Ziqin Lin Deyun(Dept. of Electronic Engineering, Tsinghua University, Beijing 100084) 

出　　处：《Journal of Electronics(China)》1998年第2期168-173,共6页电子科学学刊（英文版）

基　　金：Supported by the National Natural Science Foundation of China

摘　　要：The key problem of finite-difference time-domain (FD-TD) method is the skillful application of special conditions on the boundaries of the computational domain. A new technique named Perfectly Matched Layer(PML) yields a robust Absorbing Boundary Condition(ABC) independent of the angle of incidence and the frequency of outgoing waves. In this paper, the principle of the PML technique is briefly presented. Then some problems in the application and their settlements are discussed emphatically. Finally three numerical tests and a measured result are devoted to examine the accuracy and effectiveness of this approach.The key problem of finite-difference time-domain (FD-TD) method is the skillful application of special conditions on the boundaries of the computational domain. A new technique named Perfectly Matched Layer(PML) yields a robust Absorbing Boundary Condition(ABC) independent of the angle of incidence and the frequency of outgoing waves. In this paper, the principle of the PML technique is briefly presented. Then some problems in the application and their settlements are discussed emphatically. Finally three numerical tests and a measured result are devoted to examine the accuracy and effectiveness of this approach.

关 键 词：FINITE-DIFFERENCE TIME-DOMAIN Absorbing BOUNDARY CONDITION Perfectly matched layer REFLECTION COEFFICIENT 

分 类 号：TN011[电子电信—物理电子学]