Microwave Sensors and Their Applications in Permittivity Measurement

This paper reviews microwave sensors and their applications in permittivity measurement. The detection, diagnosis, classification, and monitoring without contact and invasion have been the subject of numerous studies based on permittivity characteristics tracking. This review illustrates many new ty...

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Main Authors: Changjun Liu, Chongwei Liao, Yujie Peng, Weixin Zhang, Bo Wu, Peixiang Yang
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/24/23/7696
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author Changjun Liu
Chongwei Liao
Yujie Peng
Weixin Zhang
Bo Wu
Peixiang Yang
author_facet Changjun Liu
Chongwei Liao
Yujie Peng
Weixin Zhang
Bo Wu
Peixiang Yang
author_sort Changjun Liu
collection DOAJ
description This paper reviews microwave sensors and their applications in permittivity measurement. The detection, diagnosis, classification, and monitoring without contact and invasion have been the subject of numerous studies based on permittivity characteristics tracking. This review illustrates many new types of research in recent years. Firstly, the application background is briefly introduced, and several main measurement methods are presented. An overview of measurement technology in various applications is compiled and summarized based on numerous typical examples. Exciting applications are compared and presented separately, combining resonator sensors with strong electric fields. Furthermore, differential signals represent trends for future applications with strong environmental immunity, an alternative option to expensive measuring equipment. With the alternation of metamaterials, microfluidics technologies, cross-technology, algorithms, and so on, sensors play an exceptionally prominent role in practical and low-cost applications.
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id doaj-art-5d69daa4ced44383a1d3e4c5e83b15ab
institution DOAJ
issn 1424-8220
language English
publishDate 2024-12-01
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series Sensors
spelling doaj-art-5d69daa4ced44383a1d3e4c5e83b15ab2025-08-20T02:50:41ZengMDPI AGSensors1424-82202024-12-012423769610.3390/s24237696Microwave Sensors and Their Applications in Permittivity MeasurementChangjun Liu0Chongwei Liao1Yujie Peng2Weixin Zhang3Bo Wu4Peixiang Yang5School of Electronics and Information Engineering, Sichuan University, Chengdu 610064, ChinaSchool of Electronics and Information Engineering, Sichuan University, Chengdu 610064, ChinaSchool of Electronics and Information Engineering, Sichuan University, Chengdu 610064, ChinaSchool of Electronics and Information Engineering, Sichuan University, Chengdu 610064, ChinaSichuan Yibin Plastic Packaging Materials Co., Ltd., Yibin 644007, ChinaSichuan Yibin Plastic Packaging Materials Co., Ltd., Yibin 644007, ChinaThis paper reviews microwave sensors and their applications in permittivity measurement. The detection, diagnosis, classification, and monitoring without contact and invasion have been the subject of numerous studies based on permittivity characteristics tracking. This review illustrates many new types of research in recent years. Firstly, the application background is briefly introduced, and several main measurement methods are presented. An overview of measurement technology in various applications is compiled and summarized based on numerous typical examples. Exciting applications are compared and presented separately, combining resonator sensors with strong electric fields. Furthermore, differential signals represent trends for future applications with strong environmental immunity, an alternative option to expensive measuring equipment. With the alternation of metamaterials, microfluidics technologies, cross-technology, algorithms, and so on, sensors play an exceptionally prominent role in practical and low-cost applications.https://www.mdpi.com/1424-8220/24/23/7696microwave sensorpermittivity measurementdifferential signalsmetamaterialsmicrofluidicscross-technology
spellingShingle Changjun Liu
Chongwei Liao
Yujie Peng
Weixin Zhang
Bo Wu
Peixiang Yang
Microwave Sensors and Their Applications in Permittivity Measurement
Sensors
microwave sensor
permittivity measurement
differential signals
metamaterials
microfluidics
cross-technology
title Microwave Sensors and Their Applications in Permittivity Measurement
title_full Microwave Sensors and Their Applications in Permittivity Measurement
title_fullStr Microwave Sensors and Their Applications in Permittivity Measurement
title_full_unstemmed Microwave Sensors and Their Applications in Permittivity Measurement
title_short Microwave Sensors and Their Applications in Permittivity Measurement
title_sort microwave sensors and their applications in permittivity measurement
topic microwave sensor
permittivity measurement
differential signals
metamaterials
microfluidics
cross-technology
url https://www.mdpi.com/1424-8220/24/23/7696
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AT weixinzhang microwavesensorsandtheirapplicationsinpermittivitymeasurement
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