This Letter presents an alternative analysis method to derive the voltage–current transmission matrix of transmission line sections. By contrast with the approach usually adopted in many microwave engineering textbooks, the proposed method, instead of coping with the telegrapher's equations and their solutions, computes efficiently the relationship between the voltages and currents at the input and output of a circuit modelled through N identical cascaded two-port reciprocal networks. This is implemented through the eigendecomposition of the transmission matrix of the two-port networks which are subsequently synthesised with L-sections. Assuming N as being very large, one obtains the desired transmission matrix, and additionally, it is depicted that the circuit supports forward and backward waves.

中文翻译：

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传输线集总元件电路模型的替代分析方法

这封信提出了另一种分析方法来推导输电线路段的电压-电流传输矩阵。与许多微波工程教科书中通常采用的方法相比，所提出的方法不是处理电报方程及其解，而是有效地计算通过 N 个相同级联建模的电路输入和输出处的电压和电流之间的关系。二端口互惠网络。这是通过二端口网络的传输矩阵的特征分解来实现的，这些矩阵随后与 L 部分合成。假设N非常大，就得到了想要的传输矩阵，另外还描述了电路支持前向波和后向波。