FDTD Modeling of Electromagnetic Wave Scattering From a Wedge With Perfectly Reflecting Boundaries: Comparisons Against Analytical Models and Calibration

ÇAKIR G., Sevgi L., Ufimtsev P. Y.

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, cilt.60, sa.7, ss.3336-3342, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 60 Sayı: 7
  • Basım Tarihi: 2012
  • Doi Numarası: 10.1109/tap.2012.2196948
  • Dergi Adı: IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.3336-3342
  • Anahtar Kelimeler: Code calibration, diffraction, electromagnetic scattering, exact integrals, exact series, FDTD, finite-difference time-domain, geometrical optics (GO), hard boundary condition, high frequency asymptotics (HFA), numerical methods, physicaloptics (PO), physical theory of diffraction (PTD), soft boundary condition, uniform theory of diffraction (UTD), DIFFRACTION COEFFICIENTS, VIRTUAL TOOL, EQUATIONS
  • Kocaeli Üniversitesi Adresli: Evet

Özet

A classical, canonical problem of electromagnetic wave scattering from a nonpenetrable wedge is modeled with the finite-difference time-domain (FDTD) method, and results are calibrated against the analytical reference solution. A novel, numerical multistep diffraction coefficient calculation model is introduced. Comparisons against analytical exact solutions as well as high frequency asymptotic (HFA) techniques such as the uniform theory of diffraction (UTD) and parabolic equation (PE) method are also given.