A symmetric bar chart-shape microwave sensor with high Q-factor for permittivity determination of fluidics

被引：19

作者：

Navaei, Moein ^{[1
]}

Rezaei, Pejman ^{[1
]}

Kiani, Sina ^{[1
]}

机构：

[1] Semnan Univ, Elect Engn, Semnan, Iran

来源：

INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2023年 / 15卷 / 08期

关键词：

Microwave Sensor; Q-Factor; Permittivity Detection; Fluid Permittivity; Bar Chart Shape; DIELECTRIC CHARACTERIZATION; MICROFLUIDIC SENSOR; DUAL-BAND; COMPACT; RESONATOR; SURFACE; DESIGN;

D O I：

10.1017/S1759078723000053

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 introduces a symmetric bar chart-shape (SBCS) microwave sensor for measuring permittivity of fluidic samples. For designing purposes, the introduced sensor was used based on the field changes between the SBCS and rectangular loop microstrip (RLM) structure. When a sample is placed on the sensing location, interaction between SBCS and RLM varies the field intensity. The vinegar samples were combined with water and then they are placed on the sensor. The change in field intensity changes the resonance frequency. However, there is a relationship between the permittivity of samples and the resonance frequencies. The proposed sensor is implemented on the substrate of RO4003C. The relative permittivity of samples changed from 59 to 77 and the resonance frequencies changed from 2.3 to 1.4 GHz. The quality factor is 3544 and the sensitivity is 2.2%.

引用

页码：1334 / 1342

页数：9

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