DocumentCode :
83325
Title :
Stable TDIE-MOT Solver for Transient Scattering by Two-Dimensional Conducting Structures
Author :
Xing-Yue Guo ; Ming-Yao Xia ; Chi-Hou Chan
Author_Institution :
Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Volume :
62
Issue :
4
fYear :
2014
fDate :
Apr-14
Firstpage :
2149
Lastpage :
2157
Abstract :
A new numerical approach for transient scattering by two-dimensional structures using the time domain integral equation (TDIE) method in conjunction with the marching-on-in-time (MOT) scheme is developed. Through proper choice of temporal basis functions and precise evaluations of matrix elements, the approach is unconditionally stable in terms that no extra stabilized measure is necessary. Quadratic B-spline function is employed as the temporal basis function, and closed-form integrals with respect to time are derived for calculating the matrix elements. Three examples with closed, open and coupling structures are examined under illuminations by both TM and TE waves. Numerical validations are illustrated by comparisons with analytical or numerical results in frequency domain via discrete Fourier transforms.
Keywords :
discrete Fourier transforms; electromagnetic wave scattering; integral equations; time-domain analysis; TDIE-MOT solver; TE waves; TM waves; closed-form integrals; discrete Fourier transforms; marching-on-in-time; precise matrix elements; quadratic B-spline basis function; quadratic B-spline function; temporal basis functions; time domain integral equation; transient scattering; two-dimensional conducting structures; Electric fields; Integral equations; Scattering; Splines (mathematics); Three-dimensional displays; Time-domain analysis; Transient analysis; Precise matrix elements; quadratic B-spline basis function; stable solution; time domain integral equation method; two-dimensional structures;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2014.2303816
Filename :
6729024
Link To Document :
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