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TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals
The detection of multiple fluids using a single chip has been attracting attention recently. A TM(02) quarter-mode substrate-integrated waveguide resonator designed at 5.81 GHz on RT/duroid 6010LM with a return loss of 13 dB and an unloaded quality factor of Q ≈ 13 generates two distinct strong elec...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6021807/ https://www.ncbi.nlm.nih.gov/pubmed/29912164 http://dx.doi.org/10.3390/s18061964 |
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author | Salim, Ahmed Lim, Sungjoon |
author_facet | Salim, Ahmed Lim, Sungjoon |
author_sort | Salim, Ahmed |
collection | PubMed |
description | The detection of multiple fluids using a single chip has been attracting attention recently. A TM(02) quarter-mode substrate-integrated waveguide resonator designed at 5.81 GHz on RT/duroid 6010LM with a return loss of 13 dB and an unloaded quality factor of Q ≈ 13 generates two distinct strong electric fields that can be manipulated to simultaneously detect two chemicals. Two asymmetric channels engraved in a polydimethylsiloxane sheet are loaded with analyte to produce a unique resonance frequency in each case, regardless of the dielectric constants of the liquids. Keeping in view the nature of lossy liquids such as ethanol, the initial structure and channels are optimized to ensure a reasonable return loss even in the case of loading lossy liquids. After loading the empty channels, Q is evaluated as 43. Ethanol (E) and deionized water (DI) are simultaneously loaded to demonstrate the detection of all possible combinations: [Air, Air], [E, DI], [DI, E], [E, E], and [DI, DI]. The proposed structure is miniaturized while exhibiting a performance comparable to that of existing multichannel microwave chemical sensors. |
format | Online Article Text |
id | pubmed-6021807 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-60218072018-07-02 TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals Salim, Ahmed Lim, Sungjoon Sensors (Basel) Article The detection of multiple fluids using a single chip has been attracting attention recently. A TM(02) quarter-mode substrate-integrated waveguide resonator designed at 5.81 GHz on RT/duroid 6010LM with a return loss of 13 dB and an unloaded quality factor of Q ≈ 13 generates two distinct strong electric fields that can be manipulated to simultaneously detect two chemicals. Two asymmetric channels engraved in a polydimethylsiloxane sheet are loaded with analyte to produce a unique resonance frequency in each case, regardless of the dielectric constants of the liquids. Keeping in view the nature of lossy liquids such as ethanol, the initial structure and channels are optimized to ensure a reasonable return loss even in the case of loading lossy liquids. After loading the empty channels, Q is evaluated as 43. Ethanol (E) and deionized water (DI) are simultaneously loaded to demonstrate the detection of all possible combinations: [Air, Air], [E, DI], [DI, E], [E, E], and [DI, DI]. The proposed structure is miniaturized while exhibiting a performance comparable to that of existing multichannel microwave chemical sensors. MDPI 2018-06-18 /pmc/articles/PMC6021807/ /pubmed/29912164 http://dx.doi.org/10.3390/s18061964 Text en © 2018 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 Salim, Ahmed Lim, Sungjoon TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals |
title | TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals |
title_full | TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals |
title_fullStr | TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals |
title_full_unstemmed | TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals |
title_short | TM(02) Quarter-Mode Substrate-Integrated Waveguide Resonator for Dual Detection of Chemicals |
title_sort | tm(02) quarter-mode substrate-integrated waveguide resonator for dual detection of chemicals |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6021807/ https://www.ncbi.nlm.nih.gov/pubmed/29912164 http://dx.doi.org/10.3390/s18061964 |
work_keys_str_mv | AT salimahmed tm02quartermodesubstrateintegratedwaveguideresonatorfordualdetectionofchemicals AT limsungjoon tm02quartermodesubstrateintegratedwaveguideresonatorfordualdetectionofchemicals |