A Model Order Reduction Method for the Finite-Element Simulation of Inhomogeneous Waveguides
A Model Order Reduction Method for the Finite-Element Simulation of Inhomogeneous Waveguides
复制标题
非均匀波导有限元模拟的模型降阶方法
DOI：
10.1109/tmag.2007.915800
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发表时间：
2008
影响因子：
2.1
通讯作者：
R. Dyczij
中科院分区：
文献类型：
--
作者：
A. Schultschik;O. Farle;R. Dyczij
提出了一种基于有限元的模型降阶方法，用于横向非均匀波导主模的宽带分析。我们发现，在传统的多点方法中使用的子空间投影可能会导致伪模式的降阶模型，并提出了一种改进的配方，以克服这个问题。建议的方法实现的误差水平相媲美的基本有限元方法，而整体解决方案的时间显着更小。
A finite-element-based model order reduction method for the broadband analysis of the dominant modes of transversally inhomogeneous waveguides is presented. We show that the sub-space projections used in conventional multipoint methods may result in spurious modes in the reduced-order model and propose an improved formulation to overcome this problem. The suggested method achieves error levels comparable to those of the underlying finite-element method, while overall solution times are significantly smaller.