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Ultra-Sensitive Differential Sensor for Liquid Dielectric Characterization Using 1-Bit Coding in DGS

  • Cong Wang*
  • , Jie Weil*
  • , Zhe Yi Li
  • , Xiao Cong Tang
  • , Jiao Yang Li
  • , Yang Yi
  • *Corresponding author for this work
  • School of Electronics and Information Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper introduces a kind of microwave sensors to characterize dielectric liquid sample. To enhance sensitivity and reduce the disturb of environment, differential method is applied in sensor design. The sensor based on defected ground structure (DGS) is optimized by adaptive genetic algorithm, and the sensing performance is improved by magnifying resonant frequency differences and enhancing electric field energy. The optimized sensor has a relative sensitivity of 0.076%, which is 1.52 times of the basic structure. The experimental results show that it is sensitive and has good robustness and quick response for liquid detection.

Original languageEnglish
Title of host publication2024 IEEE Sensors, SENSORS 2024 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350363517
DOIs
StatePublished - 2024
Externally publishedYes
Event2024 IEEE Sensors, SENSORS 2024 - Kobe, Japan
Duration: 20 Oct 202423 Oct 2024

Publication series

NameProceedings of IEEE Sensors
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference2024 IEEE Sensors, SENSORS 2024
Country/TerritoryJapan
CityKobe
Period20/10/2423/10/24

Keywords

  • adaptive genetic algorithm
  • liquid characterization
  • microwave differential sensor

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