Analysis of electromagnetic scattering from dielectric objects above a lossy half-space by multiresolution preconditioned multilevel fast multipole algorithm

• Published in: IET microwaves, antennas & propagation Vol. 4; no. 2; pp. 232 - 239
• Main Authors: HU, Y. Q, DING, J. J, DING, D. Z, CHEN, R. S
• Format: Journal Article
• Language: English
• Published: Stevenage Institution of Engineering and Technology 01.02.2010; The Institution of Engineering & Technology
• Subjects: Algorithms; Applied classical electromagnetism; Applied sciences; Dielectrics; Diffraction, scattering, reflection; Electromagnetic wave propagation, radiowave propagation; Electromagnetism; electron and ion optics; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Half spaces; Mathematical models; Multilevel; Multipoles; Physics; Preconditioning; Radiocommunications; Radiowave propagation; Scattering; Telecommunications; Telecommunications and information theory; Electromagnetic wave scattering; Lossy medium; Iterative method; Half space; Electromagnetic wave; Multiresolution analysis; Electromagnetic wave propagation; Wave scattering; Convergence rate; Numerical simulation; Integral equation; Fast algorithm; Dielectric bodies; Preconditioning; Multilevel system
• ISSN: 1751-8725; 1751-8733
• DOI: 10.1049/iet-map.2008.0265

In this study, a synthesis of the multilevel fast multipole algorithm (MLFMA) and the multiresolution (MR) preconditioning technique is presented for the analysis of scattering from homogeneous dielectric targets, above a lossy half-space. The Poggio-Miller-Chang-Harrington-Wu-Tsai integral equation and the MLFMA are used for efficient analysis of scattering problems in half-space. The MR preconditioning technique is used to speed up the convergence rate of the iterative solver. The numerical results are presented to demonstrate that, the proposed method is efficient for the scattering from homogeneous dielectric objects, above a lossy half-space.