DocumentCode
247983
Title
Accelerated A-EFIE with perturbation method using fast fourier transform
Author
Miao Miao Jia ; Sheng Sun ; Weng Cho Chew
Author_Institution
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
fYear
2014
fDate
6-11 July 2014
Firstpage
2148
Lastpage
2149
Abstract
In this paper, we apply the fast Fourier transform on the perturbation-based augmented electric field integral equation (A-EFIE). The main idea lies on the Lagrangian interpolation of a series Rn, n = -1, 0, 1, 2, ..., obtained by expanding Green´s function using Taylor series. By utilizing the Toeplitz property of the Rn on the uniform cartesian grids, the multiplication of expanded kernels in the vector and scalar potentials can be accelerated effectively. The oscillation of these expanded kernels has less variation compared to the original kernel with eikR/R. In addition, we do not need to do any near field amendment when n ≥ 0. Numerical example validates the feasibility and validity of this method.
Keywords
Green´s function methods; Toeplitz matrices; electric field integral equations; fast Fourier transforms; Green function; Lagrangian interpolation; Taylor series; Toeplitz property; accelerated A-EFIE; augmented electric field integral equation; fast Fourier transform; perturbation method; Acceleration; Antennas; Integral equations; Interpolation; Kernel; Perturbation methods; Vectors;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location
Memphis, TN
ISSN
1522-3965
Print_ISBN
978-1-4799-3538-3
Type
conf
DOI
10.1109/APS.2014.6905401
Filename
6905401
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