Shielded open-circuited sample holder for dielectric measurements of solids and liquids
Shielded open-circuited sample holder for dielectric measurements of solids and liquids
复制标题
用于固体和液体介电测量的屏蔽开路样品架
DOI：
10.1109/19.744172
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
C. Jones
中科院分区：
文献类型：
--
作者：
J. Baker;M. Janezic;C. Jones
本文提出了一种测量介电常数的技术，可用于液体或固体同轴样品从近直流到千兆赫频率。该方法使用同轴开路终端的全模模型和电容方法来确定介电常数。该方法需要使用阻抗电桥和网络分析仪。测量表明，在一个非常宽的频带的介电常数良好的精度。对于高介电常数材料，样品表面必须金属化。还进行了不确定性分析。
This paper presents a technique for permittivity measurements that can be used for either liquids or solid coaxial samples from near dc to gigahertz frequencies. The method uses both a full-mode model of a coaxial open-circuited termination and a capacitive method for permittivity determination. The method requires the use of an impedance bridge and a network analyzer. Measurements indicate good accuracy for the permittivity over a very wide band of frequencies. For high permittivity materials the sample surfaces must be metallized. An uncertainty analysis is also presented.