中文摘要：

在低频情况下,可以使用经典传输线方程来计算传输线沿线及其负载上的电压和电流,由于采用了准TEM模近似,经典传输线方程在处理更高频情况下的传输线问题时就不再适用了。基于麦克斯韦方程和电磁散射理论,建立了高频传输线方程,该方程具有和经典传输线方程类似的方程结构,其包含的新分布参数（高频传输线分布参数）与经典传输线理论的分布参数有区别,低频时两种分布参数近似相同,随着频率升高则差异变大。通过分析和仿真算例证实,应用高频传输线分布参数可以得出与全波分析方法一致的计算结果。因此,对于经典传输线理论不再适用的高频情况,高频传输线及其分布参数的研究为其提供了另一种分析途径。

英文摘要：

TL counterparts. The two kinds of distributed parameters are approximately same at low frequency, but there will be larger and larger differences between them when the frequency increases. According to some analysis and simulation examples, it can be shown that the same calculated results can be obtained by applying high-frequency TL distributed parameters and the full-wave analysis method. By using high- frequency TL and its distributed parameters, we have another way to analysis high-frequency TL problems in case that the classical TL theory is not available.