Isolation improvement in UWB-MIMO antenna system using slotted stub

Multiple-input multiple-output (MIMO) scheme refers to the technology where more than one antenna is used for transmitting and receiving the information packets. It enhances the channel capacity without more power. The available space in the modern compact devices is limited and MIMO antenna element...

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Autores: Altaf, Ahsan, Iqbal, Amjad, Smida, Amor, Smida, Jamel, Falcone Lanas, Francisco
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
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:2454/39118
Acceso en línea:https://hdl.handle.net/2454/39118
Access Level:acceso abierto
Palabra clave:Isolation enhancement
Surface waves
Gain
Circuit model
Slotted-stub
MIMO antennas
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spelling Isolation improvement in UWB-MIMO antenna system using slotted stubAltaf, AhsanIqbal, AmjadSmida, AmorSmida, JamelFalcone Lanas, FranciscoIsolation enhancementSurface wavesGainCircuit modelSlotted-stubMIMO antennasMultiple-input multiple-output (MIMO) scheme refers to the technology where more than one antenna is used for transmitting and receiving the information packets. It enhances the channel capacity without more power. The available space in the modern compact devices is limited and MIMO antenna elements need to be placed closely. The closely spaced antennas undergo an undesirable coupling, which deteriorates the antenna parameters. In this paper, an ultra wide-band (UWB) MIMO antenna system with an improved isolation is presented. The system has a wide bandwidth range from 2–13.7 GHz. The antenna elements are closely placed with an edge to edge distance of 3 mm. In addition to the UWB attribute of the system, the mutual coupling between the antennas is reduced by using slotted stub. The isolation is improved and is below −20 dB within the whole operating range. By introducing the decoupling network, the key performance parameters of the antenna are not affected. The system is designed on an inexpensive and easily available FR-4 substrate. To better understand the working of the proposed system, the equivalent circuit model is also presented. To model the proposed system accurately, different radiating modes and inter-mode coupling is considered and modeled. The EM model, circuit model, and the measured results are in good agreement. Different key performance parameters of the system and the antenna element such as envelope correlation coefficient (ECC), diversity gain, channel capcity loss (CCL) gain, radiation patterns, surface currents, and scattering parameters are presented. State-of-the-art comparison with the recent literature shows that the proposed antenna has minimal dimensions, a large bandwidth, an adequate gain value and a high isolation. It is worth noticeable that the proposed antenna has high isolation even the patches has low edge-to-edge gap (3 mm). Based on its good performance and compact dimensions, the proposed antenna is a suitable choice for high throughput compact UWB transceivers.The authors extend their appreciation to the Deanship of Scientific Research at Majmaah University for funding this work under Project Number RGP-2019-32. This work is partially supported by RTI2018-095499-B-C31, Funded by Ministerio de Ciencia, Innovación y Universidades, Gobierno de España (MCIU/AEI/FEDER,UE).MDPIIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio IngeniaritzarenInstitute of Smart Cities - ISCIngeniería Eléctrica, Electrónica y de Comunicación2020info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2454/39118reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglés© 2020 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.https://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/391182026-06-17T12:41:47Z
dc.title.none.fl_str_mv Isolation improvement in UWB-MIMO antenna system using slotted stub
title Isolation improvement in UWB-MIMO antenna system using slotted stub
spellingShingle Isolation improvement in UWB-MIMO antenna system using slotted stub
Altaf, Ahsan
Isolation enhancement
Surface waves
Gain
Circuit model
Slotted-stub
MIMO antennas
title_short Isolation improvement in UWB-MIMO antenna system using slotted stub
title_full Isolation improvement in UWB-MIMO antenna system using slotted stub
title_fullStr Isolation improvement in UWB-MIMO antenna system using slotted stub
title_full_unstemmed Isolation improvement in UWB-MIMO antenna system using slotted stub
title_sort Isolation improvement in UWB-MIMO antenna system using slotted stub
dc.creator.none.fl_str_mv Altaf, Ahsan
Iqbal, Amjad
Smida, Amor
Smida, Jamel
Falcone Lanas, Francisco
author Altaf, Ahsan
author_facet Altaf, Ahsan
Iqbal, Amjad
Smida, Amor
Smida, Jamel
Falcone Lanas, Francisco
author_role author
author2 Iqbal, Amjad
Smida, Amor
Smida, Jamel
Falcone Lanas, Francisco
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
Institute of Smart Cities - ISC
Ingeniería Eléctrica, Electrónica y de Comunicación
dc.subject.none.fl_str_mv Isolation enhancement
Surface waves
Gain
Circuit model
Slotted-stub
MIMO antennas
topic Isolation enhancement
Surface waves
Gain
Circuit model
Slotted-stub
MIMO antennas
description Multiple-input multiple-output (MIMO) scheme refers to the technology where more than one antenna is used for transmitting and receiving the information packets. It enhances the channel capacity without more power. The available space in the modern compact devices is limited and MIMO antenna elements need to be placed closely. The closely spaced antennas undergo an undesirable coupling, which deteriorates the antenna parameters. In this paper, an ultra wide-band (UWB) MIMO antenna system with an improved isolation is presented. The system has a wide bandwidth range from 2–13.7 GHz. The antenna elements are closely placed with an edge to edge distance of 3 mm. In addition to the UWB attribute of the system, the mutual coupling between the antennas is reduced by using slotted stub. The isolation is improved and is below −20 dB within the whole operating range. By introducing the decoupling network, the key performance parameters of the antenna are not affected. The system is designed on an inexpensive and easily available FR-4 substrate. To better understand the working of the proposed system, the equivalent circuit model is also presented. To model the proposed system accurately, different radiating modes and inter-mode coupling is considered and modeled. The EM model, circuit model, and the measured results are in good agreement. Different key performance parameters of the system and the antenna element such as envelope correlation coefficient (ECC), diversity gain, channel capcity loss (CCL) gain, radiation patterns, surface currents, and scattering parameters are presented. State-of-the-art comparison with the recent literature shows that the proposed antenna has minimal dimensions, a large bandwidth, an adequate gain value and a high isolation. It is worth noticeable that the proposed antenna has high isolation even the patches has low edge-to-edge gap (3 mm). Based on its good performance and compact dimensions, the proposed antenna is a suitable choice for high throughput compact UWB transceivers.
publishDate 2020
dc.date.none.fl_str_mv 2020
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/2454/39118
url https://hdl.handle.net/2454/39118
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv https://creativecommons.org/licenses/by/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv https://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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