VIE-FG-FFT for Analyzing EM Scattering from Inhomogeneous Nonmagnetic Dielectric Objects

Autor: Shu-Wen Chen, Hou-Xing Zhou, Wei Hong, Jia-Ye Xie
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: International Journal of Antennas and Propagation, Vol 2014 (2014)
Druh dokumentu: article
ISSN: 1687-5869
1687-5877
DOI: 10.1155/2014/720947
Popis: A new realization of the volume integral equation (VIE) in combination with the fast Fourier transform (FFT) is established by fitting Green’s function (FG) onto the nodes of a uniform Cartesian grid for analyzing EM scattering from inhomogeneous nonmagnetic dielectric objects. The accuracy of the proposed method is the same as that of the P-FFT and higher than that of the AIM and the IE-FFT especially when increasing the grid spacing size. Besides, the preprocessing time of the proposed method is obviously less than that of the P-FFT for inhomogeneous nonmagnetic dielectric objects. Numerical examples are provided to demonstrate the accuracy and efficiency of the proposed method.
Databáze: Directory of Open Access Journals