分层模型降阶法改进光滑矩形波导器件的建模
Advanced Modeling of Rectangular Waveguide Devices with Smooth Profiles by Hierarchical Model Reduction
摘要：
本文提出了一种分析矩形波导中平滑渐变渐变锥形、过渡区和滤波器的新方法。有了这个目标，我们应用分层模型（HiMod）减少矢量亥姆霍兹方程。我们利用一个合适的坐标变换，并先后，我们使用的波导模式作为HiMod扩展的基础。我们表明，准确的结果可以得到一个令人印象深刻的加速因子相比，标准的商业代码的基础上的三维有限元离散。
英文摘要：
We present a new method for the analysis of smoothly varying tapers, transitions and filters in rectangular waveguides. With this aim, we apply a Hierarchical Model (HiMod) reduction to the vector Helmholtz equation. We exploit a suitable coordinate transformation and, successively, we use the waveguide modes as a basis for the HiMod expansion. We show that accurate results can be obtained with an impressive speed-up factor when compared with standard commercial codes based on a three-dimensional finite element discretization.
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