An Equivalent Dipole-Moment Method Based Multilevel Fast Multipole Algorithm for Dielectric Objects

Authors

  • Xinlei Chen College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Changqing Gu College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Ji Ding College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Xiaoqiao Deng College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Zhenyi Niu College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Zhuo Li College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Keywords:

Equivalent dipole-moment method (EDM), multilevel fast multipole algorithm (MLFMA), volume integral equation (VIE)

Abstract

An equivalent dipole-moment method (EDM) based multilevel fast multipole algorithm (MLFMA), namely EDM-MLFMA, is proposed for the electromagnetic scattering from threedimensional (3D) dielectric objects. In this scheme, the MLFMA is employed to accelerate the interactions of equivalent dipoles in the far regions by expanding the 3D dyadic Green's function into a multipole expression. The memory requirement and CPU time of the conventional EDM are reduced from O(N2 ) to O(N log N) , where N is the number of unknowns. Numerical results are presented to validate the efficiency and accuracy of this method.

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Published

2022-02-10

How to Cite

[1]
X. . Chen, C. . Gu, J. . Ding, X. . Deng, Z. . Niu, and Z. . Li, “An Equivalent Dipole-Moment Method Based Multilevel Fast Multipole Algorithm for Dielectric Objects”, ACES Journal, vol. 27, no. 05, pp. 408–412, Feb. 2022.

Issue

2012: Vol 27 Iss 5

Section

General Submission