A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna

This paper presents the first realization of a lumped-element decoupling and matching network (DMN) for more than two-element mobile MIMO arrays. The realization of the DMN is based on an existing method, which is improved in terms of bandwidth and the number of network elements. The array is design...

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Main Authors: Riku Kormilainen, Rasmus Luomaniemi, Anu Lehtovuori, Ville Viikari
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:International Journal of Antennas and Propagation
Online Access:http://dx.doi.org/10.1155/2019/1934726
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author Riku Kormilainen
Rasmus Luomaniemi
Anu Lehtovuori
Ville Viikari
author_facet Riku Kormilainen
Rasmus Luomaniemi
Anu Lehtovuori
Ville Viikari
author_sort Riku Kormilainen
collection DOAJ
description This paper presents the first realization of a lumped-element decoupling and matching network (DMN) for more than two-element mobile MIMO arrays. The realization of the DMN is based on an existing method, which is improved in terms of bandwidth and the number of network elements. The array is designed to operate in the 2.6–2.7 GHz LTE band. The DMN is applied to a four-element MIMO antenna array located on one side of the mobile phone chassis. The array initially has a strong coupling of −3 dB, which is improved to −7 dB with the DMN. In other words, this denotes a reduction of 30 percentage points in coupled power. The DMN also improves the total efficiency by 21 percentage points at best.
format Article
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institution Kabale University
issn 1687-5869
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language English
publishDate 2019-01-01
publisher Wiley
record_format Article
series International Journal of Antennas and Propagation
spelling doaj-art-74b90f17f4044449b4c031700c2a97992025-02-03T05:52:14ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772019-01-01201910.1155/2019/19347261934726A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO AntennaRiku Kormilainen0Rasmus Luomaniemi1Anu Lehtovuori2Ville Viikari3Department of Electronics and Nanoengineering, Aalto University School of Electrical Engineering, P.O. Box 15500, Aalto 00076, FinlandDepartment of Electronics and Nanoengineering, Aalto University School of Electrical Engineering, P.O. Box 15500, Aalto 00076, FinlandDepartment of Electronics and Nanoengineering, Aalto University School of Electrical Engineering, P.O. Box 15500, Aalto 00076, FinlandDepartment of Electronics and Nanoengineering, Aalto University School of Electrical Engineering, P.O. Box 15500, Aalto 00076, FinlandThis paper presents the first realization of a lumped-element decoupling and matching network (DMN) for more than two-element mobile MIMO arrays. The realization of the DMN is based on an existing method, which is improved in terms of bandwidth and the number of network elements. The array is designed to operate in the 2.6–2.7 GHz LTE band. The DMN is applied to a four-element MIMO antenna array located on one side of the mobile phone chassis. The array initially has a strong coupling of −3 dB, which is improved to −7 dB with the DMN. In other words, this denotes a reduction of 30 percentage points in coupled power. The DMN also improves the total efficiency by 21 percentage points at best.http://dx.doi.org/10.1155/2019/1934726
spellingShingle Riku Kormilainen
Rasmus Luomaniemi
Anu Lehtovuori
Ville Viikari
A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna
International Journal of Antennas and Propagation
title A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna
title_full A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna
title_fullStr A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna
title_full_unstemmed A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna
title_short A Lumped-Element Decoupling and Matching Network for a Four-Element Mobile Handset MIMO Antenna
title_sort lumped element decoupling and matching network for a four element mobile handset mimo antenna
url http://dx.doi.org/10.1155/2019/1934726
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