Title :
The finite-difference time-domain (FD-TD) method for numerical modeling of electromagnetic scattering
Author :
Taflove, Allen ; Umashankar, Korada R.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Northwestern Univ., Evanston, IL, USA
fDate :
7/1/1989 12:00:00 AM
Abstract :
Recent applications of the finite-difference-time-domain (FD-TD) numerical modeling approach for Maxwell´s equations are reviewed. The objects modeled to date range from simple 2D geometric shapes to extremely complex 3D aerospace and biological systems. General characteristics of FD-TD are presented. Four applications dealing with electromagnetic scattering by canonical two and three-dimensional targets are examined: four circular dielectric/permeable cylinder, conformally modeled; metal cube, broadside incidence; 3D T-shaped conducting target with a monostatic radar-cross-section (RCS) pattern; and trihedral metal corner reflector with a monostatic RCS pattern. It is shown that FD-TD predictive data for near fields and RCSs are in excellent agreement with the benchmark data
Keywords :
difference equations; electromagnetic wave scattering; time-domain analysis; 2D geometric shapes; 3D systems; Maxwell equations; T-shaped conducting target; aerospace systems; biological systems; broadside incidence; canonical targets; circular dielectric/permeable cylinder; electromagnetic scattering; finite-difference time-domain method; metal cube; monostatic radar-cross-section; numerical modeling; trihedral metal corner reflector; Biological system modeling; Biological systems; Dielectrics; Electromagnetic scattering; Finite difference methods; Maxwell equations; Numerical models; Shape; Solid modeling; Time domain analysis;
Journal_Title :
Magnetics, IEEE Transactions on
