Title :
A comparison of anisotropic PML to Berenger´s PML and its application to the finite-element method for EM scattering
Author :
Wu, Jo-Yu ; Kingsland, David M. ; Jin-Fa Lee ; Lee, Jin-Fa
Author_Institution :
ElectroSci. Lab., Ohio State Univ., Columbus, OH, USA
fDate :
1/1/1997 12:00:00 AM
Abstract :
The use of an anisotropic material for the boundary truncation of the finite-element method is considered. The anisotropic material properties can be chosen such that a plane-wave incident from free space into the anisotropic halfspace has no reflection. Because there is no reflection, the material is referred to as a perfectly matched layer (PML). The relationship between the anisotropic PML and the original PML proposed by Berenger (see J. Comp. Phys., vol.114, p.185-200, October 1994) is considered. The anisotropic PML is applied to the finite-element solution of electromagnetic (EM) scattering from three-dimensional (3-D) objects. Numerical results are presented to demonstrate the accuracy of the PML
Keywords :
electromagnetic wave scattering; finite element analysis; 3D objects; Berenger´s PML; EM scattering; EM wave absorption; TEM waveguide; anisotropic PML; anisotropic halfspace; anisotropic material properties; boundary truncation; electromagnetic scattering; finite-element method; finite-element solution; free space; perfectly matched layer; rectangular PEC plates; three-dimensional objects; Anisotropic magnetoresistance; Computational efficiency; Electromagnetic reflection; Electromagnetic scattering; Finite element methods; Helium; Material properties; Maxwell equations; Perfectly matched layers; Propagation losses;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
