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An Interdigital Capacitor Based Differential Microwave Sensor for Solid Measurement

  • School of Electronics and Information Engineering, Harbin Institute of Technology

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

Abstract

This paper presents a novel differential design consisting of three interdigital capacitor structure to improve sensitivity and avoid environment interference. The frequency shift of the designed sensor was first simulated and then measured by locating materials with different dielectric constants. Region 1 was verified as the most sensitive area to distinguish different solid materials, and the sensor exhibits the ability to estimate defects on surface. The measured results also confirm its potential in thickness and loss tangent detection.

Original languageEnglish
Title of host publication2024 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2024 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331541095
DOIs
StatePublished - 2024
Externally publishedYes
Event2024 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2024 - Chengdu, China
Duration: 28 Aug 202430 Aug 2024

Publication series

Name2024 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2024 - Proceedings

Conference

Conference2024 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2024
Country/TerritoryChina
CityChengdu
Period28/08/2430/08/24

Keywords

  • differential sensor
  • interdigital capacitor
  • permittivity characterization

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