同轴线中对称圆膜片特性的时域分析

Analyses of Transients of an Infinitely Thin Circular Flake in a Hard Coaxial Cable

本文直接在时域中分析了同轴线中无限薄圆膜片的瞬态特性,得到了基模和部分高次模的波形,并对结果进行了讨论和验证。利用本文的方法可以避免用模匹配分析这类问题所遇到的相对收敛性的麻烦。通过本文的分析可以定量地了解到这类不连续性引起的基模波形失真的程度和高次模传输的情况。

In this paper, the transient performance of an infinitely thin circular flake in a hard coaxial cable is directly analysed. The waveforms of TEM and of some high modes have been obtained. Discussions about the results are given, and the results are proven by experiments. Bying this method, trouble of relative convergence caused by using modes match can be avoided. Through analyses, the distortion of TEM mode and the transmission of high modes can be understood quantitatively.