SFELP-an efficient methodology for microwave circuit analysis
SFELP-an efficient methodology for microwave circuit analysis
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SFELP-一种有效的微波电路分析方法
DOI：
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发表时间：
2001
期刊：
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通讯作者：
J. Zapata
中科院分区：
文献类型：
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作者：
J. Rubio;J. Arroyo;J. Zapata
本文介绍了一种基于分段技术、有限元法和矩阵Lanczos-Pade算法（SFELP）的微波电路分析混合方法。该方法通过一个Lanczos型过程（SyMPVL）计算任意输入和输出的矩阵传递函数的对称矩阵Pade近似，以获得微波电路在宽频带上的广义导纳矩阵。除了激励矢量矩阵的频率依赖性之外，提供三维有限元/分割方法的公式适用于通过Lanczos算法应用对称Pade。在本文中，这个问题是解析克服的情况下，激励矢量对应于均匀波导或传输线的模式。通过不同的算例验证了该方法的准确性和有效性。
A hybrid method based on the segmentation technique, the finite-element method, and a matrix Lanczos-Pade algorithm (SFELP) for the analysis of microwave circuits is introduced in this paper. This method computes symmetric matrix-Pade approximations of a matrix transfer function for any number of inputs and outputs via a Lanczos-type process (SyMPVL) for obtaining the generalized admittance matrix of a microwave circuit on a wide band of frequencies. The formulation that provides the three-dimensional finite-element/segmentation method is suitable for applying the symmetric Pade via Lanczos algorithm, except for the frequency dependence of the matrix of excitation vectors. In this paper, this problem is analytically overcome for the case in which excitation vectors correspond to modes of homogeneous waveguides or transmission lines. The accuracy and efficiency of the proposed method are shown by means of different examples.