Frequency dependence of the constitutive parameters of causal perfectly matched anisotropic absorbers
- 1 December 1996
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Guided Wave Letters
- Vol. 6 (12), 447-449
- https://doi.org/10.1109/75.544545
Abstract
Perfectly matched layers (PMLs), which are employed for mesh truncation in the finite-difference time-domain (FDTD) or in finite element methods (FEMs), can be realized by artificial anisotropic materials with properly chosen permittivity and permeability tensors. The tensor constitutive parameters must satisfy the Kramers-Kronig relationships, so that the law of causality holds. These relations are used to relate the real and imaginary parts of the constitutive parameters of the PML media to deduce the asymptotic behaviors of these parameters at low and high frequencies.Keywords
This publication has 6 references indexed in Scilit:
- Investigation of nonplanar perfectly matched absorbers for finite-element mesh truncationIEEE Transactions on Antennas and Propagation, 1997
- Mesh truncation by perfectly matched anisotropic absorbers in the finite‐element methodMicrowave and Optical Technology Letters, 1996
- An application of the perfectly matched layer (PML) concept to the finite element method frequency domain analysis of scattering problemsIEEE Microwave and Guided Wave Letters, 1995
- A perfectly matched anisotropic absorber for use as an absorbing boundary conditionIEEE Transactions on Antennas and Propagation, 1995
- Behavior of Berenger's ABC for evanescent wavesIEEE Microwave and Guided Wave Letters, 1995
- A perfectly matched layer for the absorption of electromagnetic wavesJournal of Computational Physics, 1994