宽带有限元模型特征降阶的修正摄动理论

2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535) Pub Date : 2004-06-06 DOI:10.1109/MWSYM.2004.1338836

Shih-Hao Lee, R. Wu

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引用次数: 2

摘要

将基于高阶泰勒级数展开和同余变换的修正微扰理论应用于有限元模型降阶，以加速波导本征模问题的分析。克服了极点泰勒级数的限制，大大提高了单点降阶模型的带宽。该方法不像在AWE过程中那样将Taylor级数转换为Pade有理函数，具有更稳定和更宽的带宽。

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Modified perturbation theory for wideband finite-element model order reduction in eigen-problems

Modified perturbation theory based on high order Taylor series expansion and congruence transformation is applied to the finite-element model order reduction to accelerate the analysis of waveguide eigen-mode problems. The limit of Taylor series by poles is overcome and the bandwidth of a single-point reduced-order model is greatly improved. Without transforming a Taylor series to a Pade rational function, as in an AWE process, this method is more stable and has a wider bandwidth.

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2004 IEEE MTT-S International Microwave Symposium Digest (IEEE Cat. No.04CH37535)

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