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Title: Precorrected-FFT solution of the volume integral equation for 3-D inhomogeneous dielectric objects
Authors: Nie, X.-C. 
Li, L.-W. 
Yuan, N. 
Yeo, T.S. 
Gan, Y.-B. 
Keywords: Electromagnetic scattering
Method of moments (MoM)
Precorrected-fast fourier transform (FFT) method
Volume integral equation
Issue Date: Jan-2005
Citation: Nie, X.-C., Li, L.-W., Yuan, N., Yeo, T.S., Gan, Y.-B. (2005-01). Precorrected-FFT solution of the volume integral equation for 3-D inhomogeneous dielectric objects. IEEE Transactions on Antennas and Propagation 53 (1 II) : 313-320. ScholarBank@NUS Repository.
Abstract: This paper presents a fast solution to the volume integral equation for electromagnetic scattering from three-dimensional inhomogeneous dielectric bodies by using the precorrected-fast Fourier transform (FFT) method. The object is modeled using tetrahedral volume elements and the basis functions proposed by Schaubert et al. are employed to expand the unknown electric flux density. The basis functions are then projected onto a fictitious uniform grid surrounding the nouniform mesh, enabling the FFT to be used to speed up the matrix-vector multiplies in the iterative solution of the matrix equation. The resultant method greatly reduces the memory requirement to O(N) and the computational complexity to O(N log N), where N is the number of unknowns. As a result, this method is capable of computing electromagnetic scattering from large complex dielectric objects. © 2005 IEEE.
Source Title: IEEE Transactions on Antennas and Propagation
ISSN: 0018926X
DOI: 10.1109/TAP.2004.838803
Appears in Collections:Staff Publications

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