Abstract
The use of perfectly matched layers (PMLs) is one of the most popular techniques employed for mesh truncation in finite-difference time-domain (FDTD) simulations. Its original form, however, has a poor absorption of evanescent waves, which are highly present in simulations of periodic structures. A better absorption has been achieved using a complex frequency shifted (CFS) PML, which has been implemented via a convolution scheme. In this letter, we present a simple and efficient implementation of the CFS PML and apply it to periodic structures.
Original language | English (US) |
---|---|
Pages (from-to) | 487-489 |
Number of pages | 3 |
Journal | IEEE Microwave and Wireless Components Letters |
Volume | 15 |
Issue number | 7 |
DOIs | |
State | Published - Jul 1 2005 |
Keywords
- Complex frequency shifted (CFS)
- Evanescent waves
- Finite-difference time-domain (FDTD)
- Floquet modes
- Perfectly matched layer (PML)
- Periodic structures
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering