Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits

In this paper the authors describe the design of a broadband aperture-stacked patch (ASP) microstrip antenna based on a filtering equivalent circuit. The antenna consists of two stacked microstrip patches that are fed by a microstrip line through a resonant aperture. An equivalent circuit is propose...

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Autores: Delgado Lozano, Ignacio María, Rodríguez Boix, Rafael, Losada Torres, Vicente, Fernández Prieto, Armando
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2025
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/181643
Acceso en línea:https://hdl.handle.net/11441/181643
https://doi.org/10.1109/OJAP.2025.3641032
Access Level:acceso abierto
Palabra clave:Aperture-coupled antennas
Broadband antennas
Filtering theory
Microstrip antennas
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spelling Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent CircuitsDelgado Lozano, Ignacio MaríaRodríguez Boix, RafaelLosada Torres, VicenteFernández Prieto, ArmandoAperture-coupled antennasBroadband antennasFiltering theoryMicrostrip antennasIn this paper the authors describe the design of a broadband aperture-stacked patch (ASP) microstrip antenna based on a filtering equivalent circuit. The antenna consists of two stacked microstrip patches that are fed by a microstrip line through a resonant aperture. An equivalent circuit is proposed for the antenna consisting of three LC parallel resonators, out of which two resonators are inductively coupled and two resonators are capacitively coupled. The equivalent circuit is de-embedded from the antenna response by means of the least squares method, and the dimensions of the antenna are adjusted in such a way their equivalent circuit matches the response of a broadband third order filter. The reference filter is used as a mean to ensure broadband matching of the antenna. Following this design strategy, a broadband ASP antenna has been designed, fabricated and measured at a center frequency of 5.5 GHz with a bandwidth of roughly 45%.Institute of Electrical and Electronics EngineersElectrónica y ElectromagnetismoFísica Aplicada ITIC112: MicroondasMinisterio de Ciencia, Innovación y Universidades (MICIU). EspañaEuropean Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/181643https://doi.org/10.1109/OJAP.2025.3641032reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésIEEE Open Journal of Antennas and Propagation.PID2023-148281NB-I00PID2020-116739GB-I00https://ieeexplore.ieee.org/document/11278717info:eu-repo/semantics/openAccessoai:idus.us.es:11441/1816432026-06-17T12:51:07Z
dc.title.none.fl_str_mv Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
title Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
spellingShingle Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
Delgado Lozano, Ignacio María
Aperture-coupled antennas
Broadband antennas
Filtering theory
Microstrip antennas
title_short Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
title_full Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
title_fullStr Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
title_full_unstemmed Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
title_sort Design of Broadband Aperture-Stacked Patch Microstrip Antennas Based on Third Order Filtering Equivalent Circuits
dc.creator.none.fl_str_mv Delgado Lozano, Ignacio María
Rodríguez Boix, Rafael
Losada Torres, Vicente
Fernández Prieto, Armando
author Delgado Lozano, Ignacio María
author_facet Delgado Lozano, Ignacio María
Rodríguez Boix, Rafael
Losada Torres, Vicente
Fernández Prieto, Armando
author_role author
author2 Rodríguez Boix, Rafael
Losada Torres, Vicente
Fernández Prieto, Armando
author2_role author
author
author
dc.contributor.none.fl_str_mv Electrónica y Electromagnetismo
Física Aplicada I
TIC112: Microondas
Ministerio de Ciencia, Innovación y Universidades (MICIU). España
European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER)
dc.subject.none.fl_str_mv Aperture-coupled antennas
Broadband antennas
Filtering theory
Microstrip antennas
topic Aperture-coupled antennas
Broadband antennas
Filtering theory
Microstrip antennas
description In this paper the authors describe the design of a broadband aperture-stacked patch (ASP) microstrip antenna based on a filtering equivalent circuit. The antenna consists of two stacked microstrip patches that are fed by a microstrip line through a resonant aperture. An equivalent circuit is proposed for the antenna consisting of three LC parallel resonators, out of which two resonators are inductively coupled and two resonators are capacitively coupled. The equivalent circuit is de-embedded from the antenna response by means of the least squares method, and the dimensions of the antenna are adjusted in such a way their equivalent circuit matches the response of a broadband third order filter. The reference filter is used as a mean to ensure broadband matching of the antenna. Following this design strategy, a broadband ASP antenna has been designed, fabricated and measured at a center frequency of 5.5 GHz with a bandwidth of roughly 45%.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/181643
https://doi.org/10.1109/OJAP.2025.3641032
url https://hdl.handle.net/11441/181643
https://doi.org/10.1109/OJAP.2025.3641032
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv IEEE Open Journal of Antennas and Propagation.
PID2023-148281NB-I00
PID2020-116739GB-I00
https://ieeexplore.ieee.org/document/11278717
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
publisher.none.fl_str_mv Institute of Electrical and Electronics Engineers
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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