Fast dipole method for electromagnetic scattering from anisotropic dielectric targets

被引：0
|
作者：
Chen X.-L. [1 ]
Deng X.-Q. [1 ]
Niu Z.-Y. [1 ]
Li Z. [1 ]
Gu C.-Q. [1 ]
机构：
[1] College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics
来源：
Xi Tong Gong Cheng Yu Dian Zi Ji Shu/Systems Engineering and Electronics | 2011年 / 33卷 / 11期
关键词：
Anisotropic dielectric; Electromagnetic scattering; Equivalent dipole-moment method (EDM); Fast dipole method (FDM); Volume integral equation (VIE);
D O I：
10.3969/j.issn.1001-506X.2011.11.04
中图分类号：
学科分类号：
摘要：
A new method, named fast dipole method (FDM) is presented to solve the volume integral equation (VIE) for electromagnetic scattering from three-dimensional (3D) inhomogeneous anisotropic dielectric targets, which is based on the equivalent dipole-moment method (EDM) and the Schaubert-Wilton-Glisson (SWG) basic function. The EDM speeds up the calculation of impedance elements, which views the SWG basic functions as dipole models, but it cannot save the time of solving matrix equation and memory requirement. Using a simple Taylor's series, the FDM transforms the impedance element into an aggregation-translation-disaggregation form naturally, which accelerates the matrix vector products and saves memory. Simulation results demonstrate the efficiency and accuracy of this method.
引用
收藏
页码：2368 / 2371
页数：3
相关论文
共 12 条
  • [1] Lu C.C., A fast algorithm based on volume integral equation for analysis of arbitrarily shaped dielectric radomes, IEEE Trans. on Antennas and Propagation, 51, 3, pp. 606-612, (2003)
  • [2] Zhang D.Z., Lin Q.H., A volume adaptive integral method (VAM) for 3-D inhomogeneous objects, IEEE Antenna and Wireless Propagation Letters, 1, pp. 102-105, (2002)
  • [3] Guo J.L., Li J.Y., Liu Q.Z., Analysis of arbitrarily shaped dielectric radomes using adaptive integral method based on volume integral equation, IEEE Trans. on Antennas and Propagation, 54, 7, pp. 1910-1916, (2006)
  • [4] Nie X.C., Yuan N., Li L.W., Et al., A fast combined field volume integral equation solution to EM scattering by 3-D dielectric objects of arbitrary permittivity and permeability, IEEE Trans. on Antennas and Propagation, 54, 3, pp. 961-969, (2006)
  • [5] Nie X.C., Li L.W., Yuan N., Et al., Precorrected-FFT solution of the volume integral equation for 3-D inhomogeneous dielectric objects, IEEE Trans. on Antennas and Propagation, 53, 1, pp. 313-320, (2005)
  • [6] Ozdemir N.A., Lee J.F., IE-FFT algorithm for a nonconformal volume integral equation for electromagnetic scattering from dielectric objects, IEEE Trans. on Magnetics, 44, 6, pp. 1398-1401, (2008)
  • [7] Yuan J.D., Gu C.Q., Han G.D., Dipole model method for dielectric electromagnetic scattering analysis, Chinese Journal of Radio Science, 24, 5, pp. 920-924, (2009)
  • [8] Yuan J.D., Gu C.Q., Han G.D., Efficient generation of method of moments matrices using equivalent dipole-moment method, IEEE Antennas and Wireless Propagation Letters, 8, pp. 716-719, (2009)
  • [9] Yuan J.D., Gu C.Q., Li Z., Electromagnetic scattering by arbitrarily shaped stratified anisotropic media using the equivalent dipole moment method, International Journal of RF and Microwave Computer-Aided Engineering, 20, 4, pp. 416-421, (2010)
  • [10] Schaubert D.H., Wilton D.R., Glisson A.W., A tetrahedral modeling method for electromagnetic scattering by arbitrarily shaped inhomogeneous dielectric bodies, IEEE Trans. on Antennas and Propagation, 32, 1, pp. 77-85, (1984)
12