矩形波导中试管对液体柱散射特性的影响

Impact of Test Tube on the Scattering Characteristics of a Liquid Cylinder in Rectangular Waveguide

摘要:

为了探讨影响矩形波导中心加载分层介质圆柱散射特性的因素，通过实验得到了矩形波导中装满水的玻璃试管反射系数的频率响应特性，并对电磁波频率、液体相对介电常数、液体柱高度以及试管壁厚度发生变化时，试管对液体柱散射特性的影响进行了数值模拟。结果证明：当液体柱处于谐振状态，或者液体柱高度小于波导窄边高度的1／2时，试管的存在对液体柱反射系数影响较大，试管壁厚度对反射系数也有影响。该结论可用于基于波导的微波化学实验系统的研究中。

Abstract:

The factors which may affect on the scattering characteristics of a layered dielectric cylinder in the center of a rectangular waveguide are discussed in this paper. Experiments are performed to study the frequency response characteristics of a glass test