An SIW Resonator Sensor for Liquid Permittivity Measurements at C Band
An SIW Resonator Sensor for Liquid Permittivity Measurements at C Band
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用于 C 波段液体介电常数测量的 SIW 谐振器传感器
DOI：
10.1109/lmwc.2015.2479851
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发表时间：
2015-11-01
影响因子：
3
通讯作者：
Tong, Fan
中科院分区：
文献类型：
--
作者：
Liu, Changjun;Tong, Fan
这封信介绍了一种新型基板集成波导（SIW）谐振器传感器，专门用于测量液体的复介电常数。传感器的谐振特性通过顶部平面上开的槽受到液体的影响。利用人工神经网络解决了获取介电常数的反问题。使用 C 波段设计的 SIW 谐振器传感器进行了实验。报告了实验数据，它们与参考值非常吻合。该传感器结构简单、成本低廉，可用于工业、科学和医疗（ISM）频率应用中的介电常数测量。
This letter presents a novel substrate integrated waveguide (SIW) resonator sensor that is specifically designed to measure the complex permittivity of liquids. The resonant characteristics of the sensor are influenced by liquids through a slot opened on the top plane. The inverse problem of obtaining permittivity is solved with artificial neural network. Experiments were performed with an SIW resonator sensor designed at C band. Experimental data were reported and they agreed well to the reference values. The sensor is simple and low cost, which may be applied to permittivity measurements in applications at the industrial, scientific and medical (ISM) frequencies.