• DocumentCode
    247983
  • Title

    Accelerated A-EFIE with perturbation method using fast fourier transform

  • Author

    Miao Miao Jia ; Sheng Sun ; Weng Cho Chew

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
  • fYear
    2014
  • fDate
    6-11 July 2014
  • Firstpage
    2148
  • Lastpage
    2149
  • Abstract
    In this paper, we apply the fast Fourier transform on the perturbation-based augmented electric field integral equation (A-EFIE). The main idea lies on the Lagrangian interpolation of a series Rn, n = -1, 0, 1, 2, ..., obtained by expanding Green´s function using Taylor series. By utilizing the Toeplitz property of the Rn on the uniform cartesian grids, the multiplication of expanded kernels in the vector and scalar potentials can be accelerated effectively. The oscillation of these expanded kernels has less variation compared to the original kernel with eikR/R. In addition, we do not need to do any near field amendment when n ≥ 0. Numerical example validates the feasibility and validity of this method.
  • Keywords
    Green´s function methods; Toeplitz matrices; electric field integral equations; fast Fourier transforms; Green function; Lagrangian interpolation; Taylor series; Toeplitz property; accelerated A-EFIE; augmented electric field integral equation; fast Fourier transform; perturbation method; Acceleration; Antennas; Integral equations; Interpolation; Kernel; Perturbation methods; Vectors;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
  • Conference_Location
    Memphis, TN
  • ISSN
    1522-3965
  • Print_ISBN
    978-1-4799-3538-3
  • Type

    conf

  • DOI
    10.1109/APS.2014.6905401
  • Filename
    6905401