Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators

This letter demonstrates that losses [including substrate losses and losses in the material under test (MUT)] can be beneficial to boost the sensitivity in one-port reflective-mode phase-variation planar permittivity sensors based on a pair of weakly coupled quarter-wavelength resonators (the sensin...

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Autores: Casacuberta, Pau|||0000-0002-2658-2200, Vélez, Paris|||0000-0001-6502-5987, Muñoz Enano, Jonathan|||0000-0003-1271-3801, Su, Lijuan|||0000-0002-4753-9340, Martín, Ferran|||0000-0002-1494-9167
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:282365
Acceso en línea:https://ddd.uab.cat/record/282365
https://dx.doi.org/urn:doi:10.1109/LSENS.2023.3297798
Access Level:acceso abierto
Palabra clave:Coupled lines
Coupled resonators
Microstrip
Microwave sensors
Permittivity sensors
Phase-variation sensors
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spelling Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed ResonatorsCasacuberta, Pau|||0000-0002-2658-2200Vélez, Paris|||0000-0001-6502-5987Muñoz Enano, Jonathan|||0000-0003-1271-3801Su, Lijuan|||0000-0002-4753-9340Martín, Ferran|||0000-0002-1494-9167Coupled linesCoupled resonatorsMicrostripMicrowave sensorsPermittivity sensorsPhase-variation sensorsThis letter demonstrates that losses [including substrate losses and losses in the material under test (MUT)] can be beneficial to boost the sensitivity in one-port reflective-mode phase-variation planar permittivity sensors based on a pair of weakly coupled quarter-wavelength resonators (the sensing elements). It is shown that the key aspect of optimizing the sensitivity in the limit of small perturbations of the dielectric constant of the MUT in the vicinity of the reference dielectric constant is to achieve a high slope in the phase of the reflection coefficient at the operating frequency and the output variable. Depending on the level of losses, such phase slope can be either negative (low-loss regime) or positive (high-loss regime). Nevertheless, the relevant aspect is that, regardless of its sign, the magnitude of the phase slope can be arbitrarily high by adequately designing the sensor considering the device and MUT losses. Thus, losses do not necessarily degrade sensitivity; instead, they can be strategically utilized to achieve unprecedented sensitivities in this type of sensor, which operates based on the measurement of the reflection coefficient phase. 22023-01-0120232023-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/282365https://dx.doi.org/urn:doi:10.1109/LSENS.2023.3297798reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 PID2019-103904RB-I00Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PDC2021-121085-I00Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2021/SGR-00192Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 IJC2019-040786-IAgencia Estatal de Investigación https://doi.org/10.13039/501100011033 FPU20/05700open 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:2823652026-06-06T12:50:31Z
dc.title.none.fl_str_mv Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
title Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
spellingShingle Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
Casacuberta, Pau|||0000-0002-2658-2200
Coupled lines
Coupled resonators
Microstrip
Microwave sensors
Permittivity sensors
Phase-variation sensors
title_short Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
title_full Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
title_fullStr Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
title_full_unstemmed Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
title_sort Losses Assisted Sensitivity Enhancement in Reflective-Mode Phase-Variation Permittivity Sensors Based on Weakly Coupled Distributed Resonators
dc.creator.none.fl_str_mv Casacuberta, Pau|||0000-0002-2658-2200
Vélez, Paris|||0000-0001-6502-5987
Muñoz Enano, Jonathan|||0000-0003-1271-3801
Su, Lijuan|||0000-0002-4753-9340
Martín, Ferran|||0000-0002-1494-9167
author Casacuberta, Pau|||0000-0002-2658-2200
author_facet Casacuberta, Pau|||0000-0002-2658-2200
Vélez, Paris|||0000-0001-6502-5987
Muñoz Enano, Jonathan|||0000-0003-1271-3801
Su, Lijuan|||0000-0002-4753-9340
Martín, Ferran|||0000-0002-1494-9167
author_role author
author2 Vélez, Paris|||0000-0001-6502-5987
Muñoz Enano, Jonathan|||0000-0003-1271-3801
Su, Lijuan|||0000-0002-4753-9340
Martín, Ferran|||0000-0002-1494-9167
author2_role author
author
author
author
dc.subject.none.fl_str_mv Coupled lines
Coupled resonators
Microstrip
Microwave sensors
Permittivity sensors
Phase-variation sensors
topic Coupled lines
Coupled resonators
Microstrip
Microwave sensors
Permittivity sensors
Phase-variation sensors
description This letter demonstrates that losses [including substrate losses and losses in the material under test (MUT)] can be beneficial to boost the sensitivity in one-port reflective-mode phase-variation planar permittivity sensors based on a pair of weakly coupled quarter-wavelength resonators (the sensing elements). It is shown that the key aspect of optimizing the sensitivity in the limit of small perturbations of the dielectric constant of the MUT in the vicinity of the reference dielectric constant is to achieve a high slope in the phase of the reflection coefficient at the operating frequency and the output variable. Depending on the level of losses, such phase slope can be either negative (low-loss regime) or positive (high-loss regime). Nevertheless, the relevant aspect is that, regardless of its sign, the magnitude of the phase slope can be arbitrarily high by adequately designing the sensor considering the device and MUT losses. Thus, losses do not necessarily degrade sensitivity; instead, they can be strategically utilized to achieve unprecedented sensitivities in this type of sensor, which operates based on the measurement of the reflection coefficient phase.
publishDate 2023
dc.date.none.fl_str_mv 2
2023-01-01
2023
2023-01-01
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/282365
https://dx.doi.org/urn:doi:10.1109/LSENS.2023.3297798
url https://ddd.uab.cat/record/282365
https://dx.doi.org/urn:doi:10.1109/LSENS.2023.3297798
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 PID2019-103904RB-I00
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 PDC2021-121085-I00
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2021/SGR-00192
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 IJC2019-040786-I
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 FPU20/05700
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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