Optimum Parameter Selection for Accurate FDTD Simulations in Dispersive Media
2024 IEEE 21st Biennial Conference on Electromagnetic Field Computation (CEFC)(2024)
摘要
Modifying the constitutive parameters of the background media is a technique that enables the mitigation of numerical dispersion errors in finite-difference time-domain (FDTD) simulations, when wave propagation in non-dispersive materials is modeled. For cases where material dispersion is present, we propose a methodology that alters the parameters of the typical Lorentz model, so that the impact of numerical errors is controlled in two-dimensional FDTD studies.
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关键词
finite-difference time-domain (FDTD) methods,Lorentz dispersion,material parameters,numerical dispersion
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