Novel Microwave Microfluidic Sensor Using a Microstrip Split-Ring Resonator

被引：179

作者：

Abduljabar, Ali A. ^{[1
]}

Rowe, David J. ^{[2
]}

Porch, Adrian ^{[2
]}

Barrow, David A. ^{[2
]}

机构：

[1] Univ Basrah, Coll Engn, Basrah, Iraq

[2] Cardiff Univ, Sch Engn, Cardiff CF24 3AA, S Glam, Wales

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2014年 / 62卷 / 03期

关键词：

Liquid dielectric sensor; microfluidic sensor; splitring resonator; PROBE;

D O I：

10.1109/TMTT.2014.2300066

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：

In this paper, a new type of microwave microfluidic sensor is proposed to detect and determine the dielectric properties of common liquids. The technique is based on perturbation theory, in which the resonant frequency and quality factor of the microwave resonator depend on the dielectric properties of the resonator. A microstrip split-ring resonator with two gaps is adopted for the design of the sensors (i.e., a double split-ring resonator). This resonator is both compact and planar, making it suitable for a lab-on-a-chip approach. Several types of solvents are tested with two types of capillaries to verify sensor performance. At 3 GHz, very good agreement is demonstrated between simulated and measured results.

引用

页码：679 / 688

页数：10

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