Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band

A general near-field (NF) in-band synthesis strategy is presented for the direct layout optimization (DLO) of reflectarrays with application to the generation of plane waves for the mm-wave band. The technique relies on the definition of relevant figures of merit (FoM) and the use of a gradient-base...

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Detalhes bibliográficos
Autor: Rodriguez Prado, Daniel
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universidad de Oviedo (UNIOVI)
Repositorio:RUO. Repositorio Institucional de la Universidad de Oviedo
Idioma:inglés
OAI Identifier:oai:digibuo.uniovi.es:10651/66336
Acesso em linha:http://hdl.handle.net/10651/66336
https://dx.doi.org/10.3390/electronics12010091
Access Level:acceso abierto
Palavra-chave:Reflectarray antenna
Near-field synthesis
Near-field pattern
Gradient-based algorithm
Plane-wave generator
Compact antenna test range (CATR)
Dual linear polarization
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spelling Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave bandRodriguez Prado, DanielReflectarray antennaNear-field synthesisNear-field patternGradient-based algorithmPlane-wave generatorCompact antenna test range (CATR)Dual linear polarizationA general near-field (NF) in-band synthesis strategy is presented for the direct layout optimization (DLO) of reflectarrays with application to the generation of plane waves for the mm-wave band. The technique relies on the definition of relevant figures of merit (FoM) and the use of a gradient-based minimization algorithm. To this end, the volume where the NF is computed is divided into a number of disjoint regions where the FoM are defined. These FoM define the performance of the antenna and their direct optimization enables improvement compared to previous approaches described in the literature, while reducing the memory footprint of the algorithm and accelerating computation. The optimization procedure is divided into several stages to facilitate convergence towards a successful outcome. First, a phase-only synthesis is carried out at a single frequency. Then, a reflectarray layout is obtained using a method of moments based on local periodicity, accounting for mutual coupling between elements. Finally, an in-band DLO is performed at a number of frequencies directly optimizing the FoM. The results show that the obtained reflectarray layout complies with the requirements in the frequency range 27 GHz–29 GHz within the 5G new radio n257 band.This work was supported in part by the Ministerio de Ciencia, Innovación y Universidades under project IJC2018-035696-I; by the Ministerio de Ciencia e Innovación and the Agencia Estatal de Investigación within project ENHANCE-5G (PID2020-114172RB-C21/AEI/10.13039/501100011033); by Gobierno del Principado de Asturias under project AYUD/2021/51706.MDPI20232023-01-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articlehttp://hdl.handle.net/10651/66336https://dx.doi.org/10.3390/electronics12010091reponame:RUO. Repositorio Institucional de la Universidad de Oviedoinstname:Universidad de Oviedo (UNIOVI)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:digibuo.uniovi.es:10651/663362026-06-07T06:38:51Z
dc.title.none.fl_str_mv Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
title Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
spellingShingle Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
Rodriguez Prado, Daniel
Reflectarray antenna
Near-field synthesis
Near-field pattern
Gradient-based algorithm
Plane-wave generator
Compact antenna test range (CATR)
Dual linear polarization
title_short Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
title_full Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
title_fullStr Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
title_full_unstemmed Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
title_sort Plane-wave generation through general near-field In-band reflectarray direct layout optimization with figure of merit constraints in mm-wave band
dc.creator.none.fl_str_mv Rodriguez Prado, Daniel
author Rodriguez Prado, Daniel
author_facet Rodriguez Prado, Daniel
author_role author
dc.subject.none.fl_str_mv Reflectarray antenna
Near-field synthesis
Near-field pattern
Gradient-based algorithm
Plane-wave generator
Compact antenna test range (CATR)
Dual linear polarization
topic Reflectarray antenna
Near-field synthesis
Near-field pattern
Gradient-based algorithm
Plane-wave generator
Compact antenna test range (CATR)
Dual linear polarization
description A general near-field (NF) in-band synthesis strategy is presented for the direct layout optimization (DLO) of reflectarrays with application to the generation of plane waves for the mm-wave band. The technique relies on the definition of relevant figures of merit (FoM) and the use of a gradient-based minimization algorithm. To this end, the volume where the NF is computed is divided into a number of disjoint regions where the FoM are defined. These FoM define the performance of the antenna and their direct optimization enables improvement compared to previous approaches described in the literature, while reducing the memory footprint of the algorithm and accelerating computation. The optimization procedure is divided into several stages to facilitate convergence towards a successful outcome. First, a phase-only synthesis is carried out at a single frequency. Then, a reflectarray layout is obtained using a method of moments based on local periodicity, accounting for mutual coupling between elements. Finally, an in-band DLO is performed at a number of frequencies directly optimizing the FoM. The results show that the obtained reflectarray layout complies with the requirements in the frequency range 27 GHz–29 GHz within the 5G new radio n257 band.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-01-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10651/66336
https://dx.doi.org/10.3390/electronics12010091
url http://hdl.handle.net/10651/66336
https://dx.doi.org/10.3390/electronics12010091
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:RUO. Repositorio Institucional de la Universidad de Oviedo
instname:Universidad de Oviedo (UNIOVI)
instname_str Universidad de Oviedo (UNIOVI)
reponame_str RUO. Repositorio Institucional de la Universidad de Oviedo
collection RUO. Repositorio Institucional de la Universidad de Oviedo
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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