Advertisement

Collisional, Nonuniform Plasma Sphere Scattering Calculation by FDTD Employing a Drude Model

  • Yuan Zhong-cai
  • Shi Jia-ming
Article

Abstract

In a collisional plasma, the collision frequency between electrons and neutrals may be equal to or greater than incident electromagnetic wave frequency. The complex permittivity can not represent the dielectric property of the plasma perfectly used in the finite difference in time domain (FDTD). Drude model is adopted to characterize a collisional plasma. Using a commercial FDTD package, XFDTD 6.0, the electromagnetic scattering of plasma sphere is calculated. By comparison with Mie method, Drude mode is proven to be suitable. Radar cross-section (RCS) of nonuniform plasma spheres and conductor spheres coated by plasma layer are calculated.

Keywords

FDTD Drude mode Nonuniform plasma sphere Collisional plasma 

References

  1. 1.
    M. Laroussi, Interaction of microwave with atmospheric pressure. plasmas, Int. J. Infrared Millim. Waves, 16, 2069–2083 (1995)CrossRefADSGoogle Scholar
  2. 2.
    S.B. Adler, R.S. Johnson, New backscattering computation and tables for dielectric and metal spheres, Appl. Opt. 1, 655–660 (1962)ADSGoogle Scholar
  3. 3.
    J.V. Dave, Scattering of visible light by large water spheres, Appl. Opt. 8, 155–164 (1969)ADSCrossRefGoogle Scholar
  4. 4.
    O.B. Toon, T.P. Ackerman, Algorithms for the calculation of scattering by stratified spheres, Appl. Opt., 20, 3657–3660(1981)ADSGoogle Scholar
  5. 5.
    A. Helaly, L. Shafai. Electromagnetic wave scattering by nonuniform plasma sphere, Can. J. Elect. Comp. Eng. 14, pp. 122–134(1989)Google Scholar
  6. 6.
    M.A., Leontovich. Investigation of propagation of radiowaves, Part II, Moscow, (1948)Google Scholar
  7. 7.
    A. Helaly, E.A. Soliman, A.A. Megahed, Electromagnetic wave scattering by nonuniform plasma sphere, Can. J. Phys. 75, 919–932 (1997)CrossRefADSGoogle Scholar
  8. 8.
    Y.-L. Geng, X.-B. Wu, L.-W. Li, etc. Electromagnetic Scattering by an Inhomogeneous Plasma Anisotropic Sphere of Multilayers, IEEE Trans. Antennas Propag. 53, 3982–3989 (2005)CrossRefADSGoogle Scholar
  9. 9).
    Kunz, R.J. Luebbers, The Finite Difference Time Domain Method for Electromagnetics, CRC Press, LLC, Boca Raton, pp.123–162 (1993).Google Scholar
  10. 10.
    K.S. Yee, Numerical solution of initial boundary value problems involving Maxwell’s equations in isotropic media, IEEE Trans. Antennas Propag., 14, 302–307 (1966)CrossRefMATHADSGoogle Scholar
  11. 11.
    G. Mur, Absorbing boundary conditions for the finite difference approximation of the time-domain electromagnetic field equations, IEEE Trans. EMC, 23, 1073–1077 (1981).Google Scholar
  12. 12).
    Z.P. Liao, H.L. Wong, G.P. Yang, Y.F. Yuan, A transmitting boundary for transient wave analysis, Sci. Sinica. 28,. 1063–1076 (1984).Google Scholar
  13. 13.
    J.P. Berenger. A perfectly matched layer for the absorption of electromagnetic waves. J. Computat. Phys., Oct. (1994).Google Scholar
  14. 14.
    R.J. Luebbers, F. Hunsberger, K.S. Kunz, A frequency-dependent finite-difference time-domain formulation for transient propagation in plasma, IEEE Trans. Antennas Propag. 39, 29–34 (1991).CrossRefADSGoogle Scholar
  15. 15).
    K. Kunz, R. Luebbers, The Finite Difference Time Domain Method for Electromagnetics. CRC Press Catalog Number 8657, (1993).Google Scholar
  16. 16.
    C.F. Bohren, D.R. Huffman, Absorption and Scattering of Light by Small Particles, John Wiley, New York, NY (1983).Google Scholar
  17. 17.
    van de Hulst H.C Light Scattering by Small Particles, Dover Publication, New York, NY (1981).Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Key Lay of Infrared and Low Temperature Plasma of Anhui ProvinceHefei Electronic Engineering InstituteHefeiPeople’s Republic of China

Personalised recommendations