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 TM1 propagation modes, demonstrate the effectiveness and accuracy of the PML concept as applied in the context of the FEM.
ASJC Scopus subject areas
- Physics and Astronomy(all)