Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems
A volume integral equation based fast algorithm using the Fast Fourier Transform of fitting Green’s function (FG-FFT) is proposed in this paper for analysis of electromagnetic scattering from 3D anisotropic dielectric objects. For the anisotropic VIE model, geometric discretization is still implemen...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2015/123739 |
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| author | Shu-Wen Chen Feng Lu Yao Ma |
| author_facet | Shu-Wen Chen Feng Lu Yao Ma |
| author_sort | Shu-Wen Chen |
| collection | DOAJ |
| description | A volume integral equation based fast algorithm using the Fast Fourier Transform of fitting Green’s function (FG-FFT) is proposed in this paper for analysis of electromagnetic scattering from 3D anisotropic dielectric objects. For the anisotropic VIE model, geometric discretization is still implemented by tetrahedron cells and the Schaubert-Wilton-Glisson (SWG) basis functions are also used to represent the electric flux density vectors. Compared with other Fast Fourier Transform based fast methods, using fitting Green’s function technique has higher accuracy and can be applied to a relatively coarse grid, so the Fast Fourier Transform of fitting Green’s function is selected to accelerate anisotropic dielectric model of volume integral equation for solving electromagnetic scattering problems. Besides, the near-field matrix elements in this method are used to construct preconditioner, which has been proved to be effective. At last, several representative numerical experiments proved the validity and efficiency of the proposed method. |
| format | Article |
| id | doaj-art-4504cf05649b49af97f072157f36567c |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-4504cf05649b49af97f072157f36567c2025-02-03T05:43:38ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772015-01-01201510.1155/2015/123739123739Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering ProblemsShu-Wen Chen0Feng Lu1Yao Ma2School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaNational Key Laboratory on Electromagnetic Environmental Effects and Electro-Optical Engineering, PLA University of Science and Technology, Nanjing 210007, ChinaNational Key Laboratory on Electromagnetic Environmental Effects and Electro-Optical Engineering, PLA University of Science and Technology, Nanjing 210007, ChinaA volume integral equation based fast algorithm using the Fast Fourier Transform of fitting Green’s function (FG-FFT) is proposed in this paper for analysis of electromagnetic scattering from 3D anisotropic dielectric objects. For the anisotropic VIE model, geometric discretization is still implemented by tetrahedron cells and the Schaubert-Wilton-Glisson (SWG) basis functions are also used to represent the electric flux density vectors. Compared with other Fast Fourier Transform based fast methods, using fitting Green’s function technique has higher accuracy and can be applied to a relatively coarse grid, so the Fast Fourier Transform of fitting Green’s function is selected to accelerate anisotropic dielectric model of volume integral equation for solving electromagnetic scattering problems. Besides, the near-field matrix elements in this method are used to construct preconditioner, which has been proved to be effective. At last, several representative numerical experiments proved the validity and efficiency of the proposed method.http://dx.doi.org/10.1155/2015/123739 |
| spellingShingle | Shu-Wen Chen Feng Lu Yao Ma Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems International Journal of Antennas and Propagation |
| title | Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems |
| title_full | Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems |
| title_fullStr | Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems |
| title_full_unstemmed | Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems |
| title_short | Fitting Green’s Function FFT Acceleration Applied to Anisotropic Dielectric Scattering Problems |
| title_sort | fitting green s function fft acceleration applied to anisotropic dielectric scattering problems |
| url | http://dx.doi.org/10.1155/2015/123739 |
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