Loading...

Scattering from Periodic Rough Surfaces Using Complex Images Green’s Function

Barzegar Parizi, Saeedeh | 2010

738 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 40907 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Shishegar, Amir Ahmad
  7. Abstract:
  8. Analysis of periodic structures is an important topic in the electromagnetic wave theory. Also, scattering from rough surfaces is of importance due to its theoretical and practical aspects. Integral equation approaches in combination with the Method of Moments (MoM) are among the most frequently used techniques for solving scattering problems related to rough surfaces due to their flexibility in modeling different geometries. Here, the electromagnetic wave scattering from periodic rough surfaces is carried out using MoM and a closed form Green’s function that accelerates the computation. Different methods, previously proposed to accelerate the convergence of periodic Green’s function are explained in this thesis. It is shown that Complex Images technique representing a closed-form Green’s function which consists of real and the contribution of some complex sources with complex locations and amplitudes can alleviate the computation. This way evaluation of the infinite summation of the periodic Green’s function is effectively passed. Analytical solutions and numerical methods like transform technique and the extended boundary condition method (EBCM) are performed for validation. In addition, this method is applied for solving scattering from layered rough surfaces as well.

  9. Keywords:
  10. Complex Images Method ; Moment Method ; Periodic Rough Surface ; Scattering ; Rough Surface Scattering ; Periodic Green Function

 Digital Object List

 Bookmark

No TOC