A volume adaptive integral method (VAIM) for 3-D inhomogeneous objects

This article describes a volume adaptive integral method (VAIM) for electromagnetic scattering from three-dimensional (3-D) inhomogeneous objects. By projecting the unknown current density within an arbitrary element in the inhomogeneous object onto a fictitious uniform grid, this method calculates...

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Bibliographic Details
Published inIEEE antennas and wireless propagation letters Vol. 1; pp. 102 - 105
Main Authors Zhang, Zhong Qing, Liu, Qing Huo
Format Journal Article
LanguageEnglish
Published New York IEEE 2002
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antennas
Central processing units
Computer errors
Current density
Electromagnetic scattering
Fast Fourier transforms
Fourier transforms
Integral equations
Integrals
Iterative methods
Large-scale systems
Mathematical analysis
Mathematical models
Moment methods
Nonuniform electric fields
Radar scattering
Surface treatment
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Summary:This article describes a volume adaptive integral method (VAIM) for electromagnetic scattering from three-dimensional (3-D) inhomogeneous objects. By projecting the unknown current density within an arbitrary element in the inhomogeneous object onto a fictitious uniform grid, this method calculates the far-zone interactions of basis and testing functions through the fast Fourier transform, thus greatly reducing the memory requirement to O(N) and CPU requirement to O(NlogN), where N is the number of unknowns. The numerical results have been validated by the method of moment.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2002.805126