Accurate Microwave Resonant Method for Complex Permittivity Measurements of Liquids
Accurate Microwave Resonant Method for Complex Permittivity Measurements of Liquids
复制标题
用于液体复介电常数测量的精确微波谐振法
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
A. Omar
中科院分区：
文献类型：
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作者：
K. Yu;S. Ogourtsov;V. G. Belenky;A. Maslenikov;A. Omar
本文提出了一种精确测量有耗液体的方法，并在标准材料上进行了试验，并与空腔测量中常用的微扰法进行了比较。该方法是基于数值求解一个复杂的特征方程。该方法的实现是使用圆柱形腔。结果表明，该方法可以减小测量误差。当材料具有损耗和高介电常数时，该方法排除了复介电常数测定的不确定性。
In this paper, a method available for accurate mea- surements of lossy liquids is presented, tested on standard mate- rials, and compared with the perturbation technique commonly adopted in cavity measurements. The method is based on numer- ical solving a complex characteristic equation. Realization of the method was done using an cylindrical cavity. Results show that measurement errors may be decreased with application of the method presented. The method excludes uncertainties in complex permittivity determination when material has losses and high per- mittivity.