Differential Sensors Using Microstrip Lines Loaded With Two Split-Ring Resonators

被引：258

作者：

Ebrahimi, Amir ^{[1
]}

Scott, James ^{[1
]}

Ghorbani, Kamran ^{[1
]}

机构：

[1] RMIT Univ, Sch Engn, Melbourne, Vic 3000, Australia

来源：

IEEE SENSORS JOURNAL | 2018年 / 18卷 / 14期

关键词：

Differential measurement; metamaterial-inspired sensor; microwave sensor; split-ring resonator; TRANSMISSION-LINES; VELOCITY SENSORS; DISPLACEMENT; ALIGNMENT; PAIRS; CO2;

D O I：

10.1109/JSEN.2018.2840691

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents a microwave sensor using a pair of split-ring resonators (SRRs). The sensor is designed by loading a microstrip transmission line by two identical SRRs on its sides. Differential permittivity sensing is performed by loading the SRRs with dielectric samples. One transmission notch is observed for the identical loads, whereas the non-identical samples produce two split notches. The sensor's operating principle is described through a circuit model analysis. A prototype of the designed sensor is fabricated and experimentally validated for verifying the differential sensing concept. The developed device can be used to compare or differentially characterize solid dielectric samples improving the robustness to environmental factors producing cross-sensitivity or miscalibration.

引用

页码：5786 / 5793

页数：8

共 46 条

[1] Characterization of miniaturized metamaterial resonators coupled to planar transmission lines through parameter extraction [J].