DocumentCode :
646748
Title :
Numerical dispersion optimized leapfrog ADI-FDTD method and its application for capturing surface current distributions of complex objects illuminated by an electromagnetic pulse (EMP)
Author :
Xiang-Hua Wang ; Jing Jin ; Yang Guo ; Wen-Yan Yin
Author_Institution :
State Key Lab. of MOI, Zhejiang Univ., Hangzhou, China
fYear :
2013
fDate :
5-9 Aug. 2013
Firstpage :
513
Lastpage :
517
Abstract :
A numerical dispersion optimized leapfrog alternating direction implicit finite-difference time-domain (ADI-FDTD) method is proposed in this paper, where a set of artificial anisotropic parameters is introduced into its implementation. Under such circumstances, its numerical dispersion can be suppressed efficiently. Some numerical experiments are performed and compared with the original leapfrog ADI-FDTD method, it is shown that our proposed method can achieve much higher computational accuracy. Further, such method is adopted for predicting surface current distributions of some 3-D complex objects illuminated by an electromagnetic pulse (EMP), such as a tank and an aircraft, etc., and good agreement is obtained in comparison with commercial software.
Keywords :
dispersion (wave); electromagnetic pulse; finite difference time-domain analysis; 3D complex objects; EMP; aircraft; alternating direction implicit finite-difference time-domain method; artificial anisotropic parameters; electromagnetic pulse; numerical dispersion optimized leapfrog ADI-FDTD method; surface current distribution prediction; tank; Current density; Current distribution; Dispersion; Finite difference methods; Optimization; Surface fitting; Time-domain analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electromagnetic Compatibility (EMC), 2013 IEEE International Symposium on
Conference_Location :
Denver, CO
ISSN :
2158-110X
Print_ISBN :
978-1-4799-0408-2
Type :
conf
DOI :
10.1109/ISEMC.2013.6670467
Filename :
6670467
Link To Document :
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