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首页> 外文期刊>IEEE Microwave and Guided Wave Letters >A new look at the perfectly matched layer (PML) concept for the reflectionless absorption of electromagnetic waves
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A new look at the perfectly matched layer (PML) concept for the reflectionless absorption of electromagnetic waves

机译：完美匹配层（PML）概念的新外观，用于电磁波的无反射吸收

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摘要

The perfectly matched layer (PML) concept has been introduced recently by Berenger (1994) with the objective of developing an absorbing boundary condition for the finite difference time domain (FDTD) method. In its original formulation, the PML approach is based on the splitting of the field components into two sub-components which are weighted with different constituent parameters. The objectives of this paper are to take a critical look at the PML concept with a view to providing some interpretations of the same; to examine the Maxwellian nature of the PML layer; to present a version of the PML approach that does not involve the "splitting" and the resulting six components for each of the electric and magnetic fields in the PML layer; and, finally, to compare it with other approaches, e.g., co-ordinate scaling.
机译：Berenger（1994）最近引入了完全匹配层（PML）概念，目的是为时差有限域（FDTD）方法开发吸收边界条件。在其最初的表述中，PML方法是基于将现场分量分成两个子分量，然后用不同的组成参数加权的。本文的目的是对PML概念进行批判性研究，以期对PML概念进行一些解释。检查PML层的Maxwellian性质；提出一种PML方法的版本，该版本不涉及PML层中每个电场和磁场的“分裂”和所得的六个分量；最后，将其与其他方法进行比较，例如坐标缩放。

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