Title :
Fast and accurate analysis of scattering from anisotropic surface impedance objects
Author :
Kedi Zhang ; Jian-Ming Jin
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
Abstract :
A well-conditioned surface integral equation (SIE) is formulated to accurately simulate electromagnetic scattering from anisotropic surface impedance objects. The parallelized multilevel fast multipole algorithm (MLFMA) and sparse approximate inverse (SAI) preconditioner are implemented to reduce the computational complexity and improve iterative convergence for large complex targets, respectively. Numerical results indicate that an excellent accuracy and fast convergence are achieved.
Keywords :
anisotropic media; computational complexity; convergence of numerical methods; electromagnetic wave scattering; integral equations; iterative methods; surface impedance; MLFMA; SAI; SIE; anisotropic surface impedance objects; computational complexity reduction; electromagnetic scattering simulation; iterative convergence; large complex targets; parallelized multilevel fast multipole algorithm; scattering analysis; sparse approximate inverse preconditioner; surface integral equation; Electromagnetic scattering; Impedance; Integral equations; MLFMA; Perpendicular magnetic anisotropy; Surface impedance;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905400
