Abstract
The performance of regular, complex frequency shifted (CFS), and second-order perfectly matched layers (PMLs) is studied for the numerical simulation of waveguide problems. The limitations of each PML is clearly demonstrated. It is shown that the second-order PML is overall the best choice for a general problem, since the regular PML is incapable of absorbing evanescent waves and the CFS-PML is ineffective for the absorption of low-frequency propagating waves. Both two- and three-dimensional problems are considered to confirm the analysis.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 2121-2126 |
| Number of pages | 6 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 48 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 2006 |
Keywords
- Computational electromagnetics
- Finite difference time domain (FDTD) method
- Numerical analysis
- Perfectly matched layers
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering