Title :
A two-dimensional finite element formulation of the perfectly matched layer
Author :
Polycarpou, Anastasis C. ; Lyons, Michael R. ; Balanis, Constantine A.
Author_Institution :
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Abstract :
A perfectly matched layer (PML) is implemented using the finite element method (FEM) to successfully terminate the output port of a parallel-plate waveguide operating over a wide range of frequencies. The PML layer is modeled as a nonphysical anisotropic lossy material backed with a perfect electric conductor (PEC). Numerical results showing the reflection coefficient as a function of frequency, for both TEM and TM/sub 1/ propagation modes, demonstrate the effectiveness and accuracy of the PML concept as applied in the context of the FEM.
Keywords :
finite element analysis; waveguide theory; 2D FEM; 2D finite element formulation; TEM propagation mode; TM/sub 1/ propagation mode; nonphysical anisotropic lossy material; parallel-plate waveguide; perfect electric conductor backing; perfectly matched layer; reflection coefficient; Anisotropic magnetoresistance; Conducting materials; Electromagnetic waveguides; Finite difference methods; Finite element methods; Frequency; Magnetic materials; Perfectly matched layers; Reflection; Time domain analysis;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
