Journal of Infrared, Millimeter, and Terahertz Waves

, Volume 31, Issue 6, pp 744–752

Electromagnetic Scattering by Arbitrarily Shaped PEC Targets Coated with Anisotropic Media Using Equivalent Dipole-Moment Method

Authors

  • Jiade Yuan
    • College of Information Science and TechnologyNanjing University of Aeronautics and Astronautics
  • Zhenyi Niu
    • College of Information Science and TechnologyNanjing University of Aeronautics and Astronautics
  • Zhuo Li
    • College of Information Science and TechnologyNanjing University of Aeronautics and Astronautics
    • College of Information Science and TechnologyNanjing University of Aeronautics and Astronautics
Article

DOI: 10.1007/s10762-010-9626-z

Cite this article as:
Yuan, J., Niu, Z., Li, Z. et al. J Infrared Milli Terahz Waves (2010) 31: 744. doi:10.1007/s10762-010-9626-z

Abstract

The equivalent dipole-moment method (EDM) is extended and applied in the analysis of electromagnetic (EM) scattering by arbitrarily shaped perfect electric conductor (PEC) targets coated with electric anisotropic media in this paper. The scattering targets are discretized into tetrahedral volume elements in the material region and into triangle patches on the conducting surface, where the volume-surface integral equation (VSIE) is set up. Then the method of moments (MoM) is employed to solve the VSIE. In the impedance matrix, the near field interaction elements are computed by the conventional MoM while the far field interaction elements are modeled by the EDM. The proposed approach is sufficiently versatile in handling arbitrarily shaped objects coated with general electric anisotropic media and is easily constructed through a simple procedure. Numerical results are given to demonstrate the accuracy and efficiency of this method.

Keywords

Method of moments (MoM)Equivalent dipole-moment method (EDM)Volume-surface integral equation (VSIE)Radar cross section (RCS)

Copyright information

© Springer Science+Business Media, LLC 2010