非均匀填充波导截止频率的网络模型分解解法
A NETWORK MODEL DECOMPOSITION METHOD FOR THECALCULATION OF CUT-OFF FREQUENCIES OF ANARBITRARY SHAPED WAVEGUIDE WITHARBITRAY FILLING
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摘要: 本文给出一种求解非均匀填充波导截止频率的新方法,称为网络模型分解法。文中首先利用区域剖分和电磁场的微分形式理论建立了该问题的拓扑填型及其相应的网络模型,然后利用电路理论中的网络分解节点分析法建立了计算非均匀填充波导截止频率的一般算法。最后将该算法应用于若干典型实例,验证了方法的可行性和有效性。Abstract: A new method, termed netwok model decomposition method, is presented for the evaluation of cut-off frequencies of an arbitrary shaped waveguide with arbitrary filling. Through discreting the region studied, a topological model and the corresponding network model are established based on the differential orms in electromagnetic field theory. A general algorithm for evaluating the cut-off frequenciess of an arbitrary shaped waveguide with arbitrary filling is constructed by using the diakopti node analysis in electrical network theory. The algorithm is applied to several typical waveguides with the validity and effectiveness of the method demonstrated.
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