DGTD计算中UPML参数的选择

2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS) Pub Date : 2017-12-01 DOI:10.1109/EDAPS.2017.8277013

Qian Yang, B. Wei, Linqian Li, D. Ge

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引用次数: 1

摘要

完美匹配层对出射波有较强的吸收作用，但其吸收效果很大程度上取决于完美匹配层介质参数的选择。研究了基于0.5阶和1.5阶基函数的间断伽辽金时域(DGTD)法UPML吸收边界的优化问题。详细讨论了基函数、离散尺度、UPML层厚度和介质参数对吸收效果的影响。根据仿真结果，给出了优化后的参数选择方案，简化了UPML的选择。

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Selection of UPML parameters in DGTD calculation

Outgoing waves can be strongly absorbed in Perfectly Matched Layer (PML), but its absorption effect strongly depends on the selection of the medium parameters in the PML layer. In this paper, the optimization problem of UPML absorption boundary of Discontinuous Galerkin Time Domain (DGTD) method based on 0.5 order and 1.5 order basis functions are studied. The effects of basis function, discrete scale, UPML layer thickness and medium parameters on the absorption effect are discussed in detail. Based on the simulation results, the optimized parameter selection scheme is given to simplify the choice of UPML.

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2017 IEEE Electrical Design of Advanced Packaging and Systems Symposium (EDAPS)

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