A Modified MRTD Forward Model of Electromagnetic Scattering with an FDTD/PML Connection Absorbing Boundary Condition  

作　　者：CUI Shuai ZHANG Xiao-Juan FANG Guang-You 崔帅;张晓娟;方广有(Key Laboratory of High Power Microwave and Electromagnetic Radiation,Institute of Electronics,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]Key Laboratory of High Power Microwave and Electromagnetic Radiation,Institute of Electronics,Chinese Academy of Sciences,Beijing 100190

出　　处：《Chinese Physics Letters》2013年第3期51-55,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant 61172017.

摘　　要：We derive the TE-mode two-dimensional multi-resolution time-domain(MRTD)iterative equations based on compactly supported wavelet basis functions as Haar,Daubechies and Coifman,and we develop a basis function selectable electromagnetic scattering forward model according to the derived equations.Meanwhile,we propose a new absorbing boundary named the FDTD/PML connection absorbing boundary condition to simplify the field calculation at the boundary area.Compared with the perfectly matched layer(PML),the proposed boundary can reduce the computing cost largely,especially for high order MRTD calculation.The simulation results show that the absorbing effect of the proposed boundary is good,and the model has higher computing accuracy and cost less time to achieve convergence compared to the finite-difference time-domain(FDTD)algorithm.

关 键 词：MRTD FDTD cost 

分 类 号：TN2[电子电信—物理电子学]