Cargando…

Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement

In order to solve the low-sensitivity problem of the dielectric constant with the resonant cavity method, a sensor based on a substrate-integrated waveguide structure loaded with a multi-complementary open resonant ring is proposed. With the enhanced resonance characteristics of the sensor, this des...

Descripción completa

Detalles Bibliográficos
Autores principales: Hao, Honggang, Wang, Dexu, Wang, Zhu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7038781/
https://www.ncbi.nlm.nih.gov/pubmed/32041152
http://dx.doi.org/10.3390/s20030857
_version_ 1783500713110798336
author Hao, Honggang
Wang, Dexu
Wang, Zhu
author_facet Hao, Honggang
Wang, Dexu
Wang, Zhu
author_sort Hao, Honggang
collection PubMed
description In order to solve the low-sensitivity problem of the dielectric constant with the resonant cavity method, a sensor based on a substrate-integrated waveguide structure loaded with a multi-complementary open resonant ring is proposed. With the enhanced resonance characteristics of the sensor, this design realized the measurement of complex dielectric constants in a wide range. The frequency selectivity of the sensor is improved by the high-quality factor of the substrate-integrated waveguide. By loading three complementary resonant rings with different opening directions in the ground plane, a deeper notch and better out-of-band suppression are achieved. The effect of the complex dielectric constant on both resonant frequency and quality factor is discussed by calculating the material under test with a known dielectric constant. Simulation and experimental results show that a resonance frequency offset of 102 MHz for the per unit dielectric constant is achieved. A wide frequency offset is the prerequisite for accurate measurement. The measurement results of four plates match well with the standard values, with a relative error of the real part of the dielectric constant of less than 2% and an error of less than 0.0099 for the imaginary part.
format Online
Article
Text
id pubmed-7038781
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-70387812020-03-09 Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement Hao, Honggang Wang, Dexu Wang, Zhu Sensors (Basel) Article In order to solve the low-sensitivity problem of the dielectric constant with the resonant cavity method, a sensor based on a substrate-integrated waveguide structure loaded with a multi-complementary open resonant ring is proposed. With the enhanced resonance characteristics of the sensor, this design realized the measurement of complex dielectric constants in a wide range. The frequency selectivity of the sensor is improved by the high-quality factor of the substrate-integrated waveguide. By loading three complementary resonant rings with different opening directions in the ground plane, a deeper notch and better out-of-band suppression are achieved. The effect of the complex dielectric constant on both resonant frequency and quality factor is discussed by calculating the material under test with a known dielectric constant. Simulation and experimental results show that a resonance frequency offset of 102 MHz for the per unit dielectric constant is achieved. A wide frequency offset is the prerequisite for accurate measurement. The measurement results of four plates match well with the standard values, with a relative error of the real part of the dielectric constant of less than 2% and an error of less than 0.0099 for the imaginary part. MDPI 2020-02-06 /pmc/articles/PMC7038781/ /pubmed/32041152 http://dx.doi.org/10.3390/s20030857 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hao, Honggang
Wang, Dexu
Wang, Zhu
Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement
title Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement
title_full Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement
title_fullStr Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement
title_full_unstemmed Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement
title_short Design of Substrate-Integrated Waveguide Loading Multiple Complementary Open Resonant Rings (CSRRs) for Dielectric Constant Measurement
title_sort design of substrate-integrated waveguide loading multiple complementary open resonant rings (csrrs) for dielectric constant measurement
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7038781/
https://www.ncbi.nlm.nih.gov/pubmed/32041152
http://dx.doi.org/10.3390/s20030857
work_keys_str_mv AT haohonggang designofsubstrateintegratedwaveguideloadingmultiplecomplementaryopenresonantringscsrrsfordielectricconstantmeasurement
AT wangdexu designofsubstrateintegratedwaveguideloadingmultiplecomplementaryopenresonantringscsrrsfordielectricconstantmeasurement
AT wangzhu designofsubstrateintegratedwaveguideloadingmultiplecomplementaryopenresonantringscsrrsfordielectricconstantmeasurement