Unconditionally Stable CN-PML Algorithm for Frequency-Dispersive Left-Handed Materials
| Autor: | Tie Jun Cui, Wei Xiang Jiang, Hao Lin Jiang, Jian Feng Zhang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
010302 applied physics
Left handed Differential equation Mathematical analysis Finite-difference time-domain method 020206 networking & telecommunications 02 engineering and technology 01 natural sciences Domain (mathematical analysis) Mathematics::Numerical Analysis Perfectly matched layer 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Limit (mathematics) Electrical and Electronic Engineering Mathematics |
| Zdroj: | IEEE Antennas and Wireless Propagation Letters. 16:2006-2009 |
| ISSN: | 1548-5757 1536-1225 |
| DOI: | 10.1109/lawp.2017.2692883 |
| Popis: | An efficient and unconditionally stable stretched coordinate perfectly matched layer (PML) is proposed to truncate the computational domain of the finite-difference time-domain (FDTD) method, which is suitable to solve problems containing frequency-dispersive left-handed materials (LHMs). Here, the complex frequency-shifted scheme is used to combine the Crank–Nicolson Douglas–Gunn and auxiliary differential equation methods. A numerical example is carried out in the two-dimensional frequency-dispersive LHM domain, showing that the proposed PML is unconditionally stable for the time-step over the Courant–Friedrich–Lewy limit of the conventional FDTD. |
| Databáze: | OpenAIRE |
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