Non-contact measurement of complex permittivity based on coupled magnetic and electric resonances

Jing Dong, Fazhong Shen, Jiangtao Huangfu, Shan Qiao, Changzhi Li, Lixin Ran

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In this paper, we introduce the strongly coupled magnetic resonance and the Rayleigh approximation to the non-contact measurement of complex permittivity, and further extend the same principle to radio frequencies by employing a sub-wavelength split-ring resonator excited by a microstrip line. Experimental measurements show that by applying the proposed approach, while the impedance matching and a high quality factor can be simultaneously obtained, the complex permittivity can be linearly retrieved from the measured change of impedance.ï¿ï¿ï¿ï¿The measurement setup can be easily calibrated for both solids and liquids, making it suitable for the measurement of complex permittivity of bio-materials.

Original languageEnglish
Title of host publication2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages54-56
Number of pages3
ISBN (Electronic)9781479955114
DOIs
StatePublished - Jul 7 2015
Event2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2015 - San Diego, United States
Duration: Jan 25 2015Jan 28 2015

Publication series

Name2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2015

Conference

Conference2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2015
CountryUnited States
CitySan Diego
Period01/25/1501/28/15

Keywords

  • Coupled resonance
  • Rayleigh approximation
  • complex permittivity
  • non-contact measurement

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    Dong, J., Shen, F., Huangfu, J., Qiao, S., Li, C., & Ran, L. (2015). Non-contact measurement of complex permittivity based on coupled magnetic and electric resonances. In 2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2015 (pp. 54-56). [7152129] (2015 IEEE Topical Conference on Biomedical Wireless Technologies, Networks, and Sensing Systems, BioWireleSS 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BIOWIRELESS.2015.7152129