Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics

A microfluidic sensor based on a microstrip line loaded with a composite resonator is reported in this paper. The composite resonator combines a shunt connected step impedance resonator (SIR) and a complementary split ring resonator CSRR) etched in the ground plane. By etching the CSRR beneath the p...

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Authors: Vélez, Paris|||0000-0001-6502-5987, Muñoz Enano, Jonathan|||0000-0003-1271-3801, Ebrahimi, Amir|||0000-0002-1787-2230, Herrojo, Cristian|||0000-0003-1934-9993, Paredes Marco, Ferran|||0000-0002-7252-1169, Scott, James, Ghorbani, Kamran|||0000-0001-8767-0207, Martín, Ferran|||0000-0002-1494-9167
Format: article
Publication Date:2021
Country:España
Institution:Universitat Autònoma de Barcelona
Repository:Dipòsit Digital de Documents de la UAB
Language:English
OAI Identifier:oai:ddd.uab.cat:258248
Online Access:https://ddd.uab.cat/record/258248
https://dx.doi.org/urn:doi:10.1109/JSEN.2021.3062290
Access Level:Open access
Keyword:Complementary split ring resonator (CSRR)
Microfluidics
Microstrip technology
Microwave sensors
Permittivity measurements
Step impedance resonator (SIR)
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spelling Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidicsVélez, Paris|||0000-0001-6502-5987Muñoz Enano, Jonathan|||0000-0003-1271-3801Ebrahimi, Amir|||0000-0002-1787-2230Herrojo, Cristian|||0000-0003-1934-9993Paredes Marco, Ferran|||0000-0002-7252-1169Scott, JamesGhorbani, Kamran|||0000-0001-8767-0207Martín, Ferran|||0000-0002-1494-9167Complementary split ring resonator (CSRR)MicrofluidicsMicrostrip technologyMicrowave sensorsPermittivity measurementsStep impedance resonator (SIR)A microfluidic sensor based on a microstrip line loaded with a composite resonator is reported in this paper. The composite resonator combines a shunt connected step impedance resonator (SIR) and a complementary split ring resonator CSRR) etched in the ground plane. By etching the CSRR beneath the patch of the SIR, the composite CSRR-loaded SIR resonator exhibits two transmission zeros and a pole in between. The operating principle of the sensor is the variation of the transmission coefficient at the pole frequency of the bare resonator, when a material or liquid under test (LUT) is in contact with the CSRR (the sensitive element). By designing the CSRR-loaded SIR resonator with closely spaced pole and transmission zeros, highly sensitive sensors are obtained. Despite the fact that the proposed sensor can also operate as a frequency variation sensor, using it as a single-frequency sensor based on the variation of the transmission coefficient (caused by the LUT) at a specific frequency reduces sensor costs. The reason is that a harmonic signal injected to the input port of the microstrip-based sensor plus a simple amplitude modulation (AM) detector (connected to the output port) suffices for measuring purposes. The proposed microfluidic sensor is applied to the characterization of volume fraction of solutions of isopropanol in deionized (DI) water. The sensor is able to resolve volume fractions as small as 5%, and the maximum measured sensitivity is as good as 4 mV/%. 22021-01-0120212021-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/258248https://dx.doi.org/urn:doi:10.1109/JSEN.2021.3062290reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 TEC2016-75650-RAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2019-103904RB-I00Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 IJCI-2017-31339Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-1159open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2582482026-06-06T12:50:31Z
dc.title.none.fl_str_mv Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
title Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
spellingShingle Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
Vélez, Paris|||0000-0001-6502-5987
Complementary split ring resonator (CSRR)
Microfluidics
Microstrip technology
Microwave sensors
Permittivity measurements
Step impedance resonator (SIR)
title_short Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
title_full Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
title_fullStr Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
title_full_unstemmed Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
title_sort Single-frequency amplitude-modulation sensor for dielectric characterization of solids and microfluidics
dc.creator.none.fl_str_mv Vélez, Paris|||0000-0001-6502-5987
Muñoz Enano, Jonathan|||0000-0003-1271-3801
Ebrahimi, Amir|||0000-0002-1787-2230
Herrojo, Cristian|||0000-0003-1934-9993
Paredes Marco, Ferran|||0000-0002-7252-1169
Scott, James
Ghorbani, Kamran|||0000-0001-8767-0207
Martín, Ferran|||0000-0002-1494-9167
author Vélez, Paris|||0000-0001-6502-5987
author_facet Vélez, Paris|||0000-0001-6502-5987
Muñoz Enano, Jonathan|||0000-0003-1271-3801
Ebrahimi, Amir|||0000-0002-1787-2230
Herrojo, Cristian|||0000-0003-1934-9993
Paredes Marco, Ferran|||0000-0002-7252-1169
Scott, James
Ghorbani, Kamran|||0000-0001-8767-0207
Martín, Ferran|||0000-0002-1494-9167
author_role author
author2 Muñoz Enano, Jonathan|||0000-0003-1271-3801
Ebrahimi, Amir|||0000-0002-1787-2230
Herrojo, Cristian|||0000-0003-1934-9993
Paredes Marco, Ferran|||0000-0002-7252-1169
Scott, James
Ghorbani, Kamran|||0000-0001-8767-0207
Martín, Ferran|||0000-0002-1494-9167
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Complementary split ring resonator (CSRR)
Microfluidics
Microstrip technology
Microwave sensors
Permittivity measurements
Step impedance resonator (SIR)
topic Complementary split ring resonator (CSRR)
Microfluidics
Microstrip technology
Microwave sensors
Permittivity measurements
Step impedance resonator (SIR)
description A microfluidic sensor based on a microstrip line loaded with a composite resonator is reported in this paper. The composite resonator combines a shunt connected step impedance resonator (SIR) and a complementary split ring resonator CSRR) etched in the ground plane. By etching the CSRR beneath the patch of the SIR, the composite CSRR-loaded SIR resonator exhibits two transmission zeros and a pole in between. The operating principle of the sensor is the variation of the transmission coefficient at the pole frequency of the bare resonator, when a material or liquid under test (LUT) is in contact with the CSRR (the sensitive element). By designing the CSRR-loaded SIR resonator with closely spaced pole and transmission zeros, highly sensitive sensors are obtained. Despite the fact that the proposed sensor can also operate as a frequency variation sensor, using it as a single-frequency sensor based on the variation of the transmission coefficient (caused by the LUT) at a specific frequency reduces sensor costs. The reason is that a harmonic signal injected to the input port of the microstrip-based sensor plus a simple amplitude modulation (AM) detector (connected to the output port) suffices for measuring purposes. The proposed microfluidic sensor is applied to the characterization of volume fraction of solutions of isopropanol in deionized (DI) water. The sensor is able to resolve volume fractions as small as 5%, and the maximum measured sensitivity is as good as 4 mV/%.
publishDate 2021
dc.date.none.fl_str_mv 2
2021-01-01
2021
2021-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/258248
https://dx.doi.org/urn:doi:10.1109/JSEN.2021.3062290
url https://ddd.uab.cat/record/258248
https://dx.doi.org/urn:doi:10.1109/JSEN.2021.3062290
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 TEC2016-75650-R
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2019-103904RB-I00
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 IJCI-2017-31339
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-1159
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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