Title :
An Efficient Surface Integral Equation Solution to EM Scattering by Chiral Objects Above a Lossy Half Space
Author :
Chen, Ru Shan ; Hu, Yun Qin ; Fan, Zheng Hong ; Ding, Da Zhi ; Wang, Dao Xiang ; Yung, Edward K N
Author_Institution :
Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
In this paper, an extension of the electric-magnetic current combined-field integral equation (JMCFIE) is presented for the efficient analysis of EM scattering by an arbitrary shaped homogenous chiral object located above a lossy half space. This formulation can lead to a well tested equation system using the method of moments (MoM) solution with the vector triangular basis functions and Galerkin´s method. The multilevel fast multipole algorithm (MLFMA) is then employed to reduce the memory requirement and computational complexity of the MoM solution. The inner-outer flexible generalized minimal residual (FGMRES) method is used to further speed up the convergence. The accuracy and efficiency are confirmed with a couple of numerical examples.
Keywords :
Galerkin method; computational complexity; electromagnetic wave scattering; integral equations; EM scattering; Galerkin method; chiral objects; computational complexity; electric-magnetic current combined-field integral equation; inner-outer flexible generalized minimal residual method; method of moments; multilevel fast multipole algorithm; vector triangular basis functions; Electromagnetic scattering; Frequency; Integral equations; Light scattering; MLFMA; Moment methods; Optical materials; Optical polarization; Optical scattering; Optical surface waves; Particle scattering; Space technology; Electric-magnetic current combined-field integral equation (JMCFIE); flexible generalized minimal residual (FGMRES); half space; homogeneous chiral object; multilevel fast multipole algorithm (MLFMA);
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2009.2023628
