Robust filter design built in a contactless metallic multilayer waveguide at W-band

This article presents the design and experimental validation of a W-band waveguide cavity filter operating around 91 GHz, using a periodic electromagnetic bandgap (EBG) structure with glide symmetry to implement the filter in a stack of multiple thin metallic sheets without electric contact between...

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Autores: Garcia-Martinez, Sergio (0000-0002-2427-8264), Santiago Arriazu, David, Tamayo-Domínguez, Adrián, Sánchez-Olivares, Pablo, Arregui Padilla, Iván, Lopetegui Beregaña, José María, Gómez Laso, Miguel Ángel, Fernández-González, José Manuel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/54231
Acceso en línea:https://hdl.handle.net/2454/54231
Access Level:acceso abierto
Palabra clave:Glide symmetry
Laser cutting
Millimeter-wave filter
Multilayer waveguide
W-band
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spelling Robust filter design built in a contactless metallic multilayer waveguide at W-bandGarcia-Martinez, Sergio (0000-0002-2427-8264)Santiago Arriazu, DavidTamayo-Domínguez, AdriánSánchez-Olivares, PabloArregui Padilla, IvánLopetegui Beregaña, José MaríaGómez Laso, Miguel ÁngelFernández-González, José ManuelGlide symmetryLaser cuttingMillimeter-wave filterMultilayer waveguideW-bandThis article presents the design and experimental validation of a W-band waveguide cavity filter operating around 91 GHz, using a periodic electromagnetic bandgap (EBG) structure with glide symmetry to implement the filter in a stack of multiple thin metallic sheets without electric contact between them. The filter is based on vertically stacked cavities that use the TE103 mode, which offers increased robustness to manufacturing and assembly errors due to the large dimensions of the cavity. The glide-symmetric circular hole EBG structure is analyzed and integrated to suppress unwanted field leakage between the metallic layers with a broad stopband. The proposed filter maintains effective operation in the 88–94-GHz frequency range, even with gap variations between layers of up to 20 µm. The filter is fabricated using laser cutting, achieving a low surface roughness and high dimensional accuracy. Experimental measurements show excellent agreement with the simulations, with a return loss greater than 20 dB and an insertion loss below 0.5 dB. These results demonstrate the possibility to achieve high performance filters at millimeter-wave frequencies while maintaining low fabrication complexity and cost using the multilayer waveguide technology.This work was supported in part by Spanish Government, Ministerio de Ciencia, Innovación y Universidades, through the Projects New Array Antenna Technologies and Digital Processing for the Future Integrated Terrestrial and Space-Based Millimeter Wave Radio Systems UPM-InTerSpaCE under Grant PID2020-112545RB-C51; in part by the Filters and Passive Components for Future Integrated Terrestrial and Space-based Millimeter Wave Radio Systems UPNA-InTerSpaCE under Grant PID2020-112545RB-C53; and in part by the Sub-Terahertz Antenna Technologies for Communications In the Road to 6G UPM -STAIRto6G funded by MICIU/AEI/10.13039/501100011033 and FEDER, UE, under Grant PID2023-151385OA-I00. The work of Sergio Garcia-Martinez was supported by the Universidad Politécnica de Madrid, Programa Propio.IEEEIngeniería Eléctrica, Electrónica y de ComunicaciónIngeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio IngeniaritzaInstitute of Smart Cities - ISC2025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/54231reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112545RB-C51info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112545RB-C53info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-151385OA-I00© 2025 The Authors. This work is licensed under a Creative Commons Attribution 4.0 License.http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/542312026-06-17T12:41:47Z
dc.title.none.fl_str_mv Robust filter design built in a contactless metallic multilayer waveguide at W-band
title Robust filter design built in a contactless metallic multilayer waveguide at W-band
spellingShingle Robust filter design built in a contactless metallic multilayer waveguide at W-band
Garcia-Martinez, Sergio (0000-0002-2427-8264)
Glide symmetry
Laser cutting
Millimeter-wave filter
Multilayer waveguide
W-band
title_short Robust filter design built in a contactless metallic multilayer waveguide at W-band
title_full Robust filter design built in a contactless metallic multilayer waveguide at W-band
title_fullStr Robust filter design built in a contactless metallic multilayer waveguide at W-band
title_full_unstemmed Robust filter design built in a contactless metallic multilayer waveguide at W-band
title_sort Robust filter design built in a contactless metallic multilayer waveguide at W-band
dc.creator.none.fl_str_mv Garcia-Martinez, Sergio (0000-0002-2427-8264)
Santiago Arriazu, David
Tamayo-Domínguez, Adrián
Sánchez-Olivares, Pablo
Arregui Padilla, Iván
Lopetegui Beregaña, José María
Gómez Laso, Miguel Ángel
Fernández-González, José Manuel
author Garcia-Martinez, Sergio (0000-0002-2427-8264)
author_facet Garcia-Martinez, Sergio (0000-0002-2427-8264)
Santiago Arriazu, David
Tamayo-Domínguez, Adrián
Sánchez-Olivares, Pablo
Arregui Padilla, Iván
Lopetegui Beregaña, José María
Gómez Laso, Miguel Ángel
Fernández-González, José Manuel
author_role author
author2 Santiago Arriazu, David
Tamayo-Domínguez, Adrián
Sánchez-Olivares, Pablo
Arregui Padilla, Iván
Lopetegui Beregaña, José María
Gómez Laso, Miguel Ángel
Fernández-González, José Manuel
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Eléctrica, Electrónica y de Comunicación
Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza
Institute of Smart Cities - ISC
dc.subject.none.fl_str_mv Glide symmetry
Laser cutting
Millimeter-wave filter
Multilayer waveguide
W-band
topic Glide symmetry
Laser cutting
Millimeter-wave filter
Multilayer waveguide
W-band
description This article presents the design and experimental validation of a W-band waveguide cavity filter operating around 91 GHz, using a periodic electromagnetic bandgap (EBG) structure with glide symmetry to implement the filter in a stack of multiple thin metallic sheets without electric contact between them. The filter is based on vertically stacked cavities that use the TE103 mode, which offers increased robustness to manufacturing and assembly errors due to the large dimensions of the cavity. The glide-symmetric circular hole EBG structure is analyzed and integrated to suppress unwanted field leakage between the metallic layers with a broad stopband. The proposed filter maintains effective operation in the 88–94-GHz frequency range, even with gap variations between layers of up to 20 µm. The filter is fabricated using laser cutting, achieving a low surface roughness and high dimensional accuracy. Experimental measurements show excellent agreement with the simulations, with a return loss greater than 20 dB and an insertion loss below 0.5 dB. These results demonstrate the possibility to achieve high performance filters at millimeter-wave frequencies while maintaining low fabrication complexity and cost using the multilayer waveguide technology.
publishDate 2025
dc.date.none.fl_str_mv 2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/54231
url https://hdl.handle.net/2454/54231
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112545RB-C51
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-112545RB-C53
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2023-151385OA-I00
dc.rights.none.fl_str_mv © 2025 The Authors. This work is licensed under a Creative Commons Attribution 4.0 License.
http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv © 2025 The Authors. This work is licensed under a Creative Commons Attribution 4.0 License.
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE
publisher.none.fl_str_mv IEEE
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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