Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques

This paper presents for the first time a compact wideband bandpass filter in groove gap waveguide (GGW) technology. The structure is obtained by including metallic pins along the central part of the GGW bottom plate according to an n-order Chebyshev stepped impedance synthesis method. The bandpass r...

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Autores: Máximo-Gutierrez, Clara, Hinojosa, Juan, Abad, José, Urbina Yeregui, Antonio, Álvarez-Melcon, Alejandro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
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:2454/53988
Acceso en línea:https://hdl.handle.net/2454/53988
Access Level:acceso abierto
Palabra clave:3D printing
Bandpass filter
CNC machining
Groove gap waveguide technology
Lowpass filter
Stepped impedance synthesis
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spelling Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniquesMáximo-Gutierrez, ClaraHinojosa, JuanAbad, JoséUrbina Yeregui, AntonioÁlvarez-Melcon, Alejandro3D printingBandpass filterCNC machiningGroove gap waveguide technologyLowpass filterStepped impedance synthesisThis paper presents for the first time a compact wideband bandpass filter in groove gap waveguide (GGW) technology. The structure is obtained by including metallic pins along the central part of the GGW bottom plate according to an n-order Chebyshev stepped impedance synthesis method. The bandpass response is achieved by combining the high-pass characteristic of the GGW and the low-pass behavior of the metallic pins, which act as impedance inverters. This simple structure together with the rigorous design technique allows for a reduction in the manufacturing complexity for the realization of high-performance filters. These capabilities are verified by designing a fifth-order GGW Chebyshev bandpass filter with a bandwidth BW = 3.7 GHz and return loss RL = 20 dB in the frequency range of the WR-75 standard, and by implementing it using computer numerical control (CNC) machining and three-dimensional (3D) printing techniques. Three prototypes have been manufactured: one using a computer numerical control (CNC) milling machine and two others by means of a stereolithography-based 3D printer and a photopolymer resin. One of the two resin-based prototypes has been metallized from a silver vacuum thermal evaporation deposition technique, while for the other a spray coating system has been used. The three prototypes have shown a good agreement between the measured and simulated S-parameters, with insertion losses better than IL = 1.2 dB. Reduced size and high-performance frequency responses with respect to other GGW bandpass filters were obtained. These wideband GGW filter prototypes could have a great potential for future emerging satellite communications systems.The authors gratefully acknowledge financial support from Agencia Estatal de Investigación (AEI) and Fundación Séneca Región de Murcia of Spain for their financial support (grants no.: PID2019-103982RB-C42/AEI/10.13039/501100011033, TED2021-129196B-C42 and 22076/PI/22).MDPIInstitute for Advanced Materials and Mathematics - INAMAT2CienciasZientziak2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/53988reponame: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/PID2019-103982RB-C42info:eu-repo/grantAgreement/AEI//TED2021-129196B-C42© 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/539882026-06-17T12:41:47Z
dc.title.none.fl_str_mv Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
title Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
spellingShingle Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
Máximo-Gutierrez, Clara
3D printing
Bandpass filter
CNC machining
Groove gap waveguide technology
Lowpass filter
Stepped impedance synthesis
title_short Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
title_full Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
title_fullStr Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
title_full_unstemmed Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
title_sort Compact wideband groove gap waveguide bandpass filters manufactured with 3D printing and CNC milling techniques
dc.creator.none.fl_str_mv Máximo-Gutierrez, Clara
Hinojosa, Juan
Abad, José
Urbina Yeregui, Antonio
Álvarez-Melcon, Alejandro
author Máximo-Gutierrez, Clara
author_facet Máximo-Gutierrez, Clara
Hinojosa, Juan
Abad, José
Urbina Yeregui, Antonio
Álvarez-Melcon, Alejandro
author_role author
author2 Hinojosa, Juan
Abad, José
Urbina Yeregui, Antonio
Álvarez-Melcon, Alejandro
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Institute for Advanced Materials and Mathematics - INAMAT2
Ciencias
Zientziak
dc.subject.none.fl_str_mv 3D printing
Bandpass filter
CNC machining
Groove gap waveguide technology
Lowpass filter
Stepped impedance synthesis
topic 3D printing
Bandpass filter
CNC machining
Groove gap waveguide technology
Lowpass filter
Stepped impedance synthesis
description This paper presents for the first time a compact wideband bandpass filter in groove gap waveguide (GGW) technology. The structure is obtained by including metallic pins along the central part of the GGW bottom plate according to an n-order Chebyshev stepped impedance synthesis method. The bandpass response is achieved by combining the high-pass characteristic of the GGW and the low-pass behavior of the metallic pins, which act as impedance inverters. This simple structure together with the rigorous design technique allows for a reduction in the manufacturing complexity for the realization of high-performance filters. These capabilities are verified by designing a fifth-order GGW Chebyshev bandpass filter with a bandwidth BW = 3.7 GHz and return loss RL = 20 dB in the frequency range of the WR-75 standard, and by implementing it using computer numerical control (CNC) machining and three-dimensional (3D) printing techniques. Three prototypes have been manufactured: one using a computer numerical control (CNC) milling machine and two others by means of a stereolithography-based 3D printer and a photopolymer resin. One of the two resin-based prototypes has been metallized from a silver vacuum thermal evaporation deposition technique, while for the other a spray coating system has been used. The three prototypes have shown a good agreement between the measured and simulated S-parameters, with insertion losses better than IL = 1.2 dB. Reduced size and high-performance frequency responses with respect to other GGW bandpass filters were obtained. These wideband GGW filter prototypes could have a great potential for future emerging satellite communications systems.
publishDate 2023
dc.date.none.fl_str_mv 2023
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/2454/53988
url https://hdl.handle.net/2454/53988
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/PID2019-103982RB-C42
info:eu-repo/grantAgreement/AEI//TED2021-129196B-C42
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv 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 MDPI
publisher.none.fl_str_mv MDPI
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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