Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE Bands

In recent years, the screen-to-body ratio of mobile handsets has been increasing. Today, the screen nearly fills up the entire front side. Conventionally, the screen is mainly seen as a metallic object that adversely affects antenna performance. In this paper, the large screen is used for the first...

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Main Authors: Hanieh Aliakbari, Li Ying Nie, Buon Kiong Lau
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Open Journal of Antennas and Propagation
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9521567/
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spelling doaj-2333e420d18648559b48bac4e834009d2021-09-14T23:01:23ZengIEEEIEEE Open Journal of Antennas and Propagation2637-64312021-01-01291192010.1109/OJAP.2021.31074369521567Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE BandsHanieh Aliakbari0https://orcid.org/0000-0001-8979-6647Li Ying Nie1https://orcid.org/0000-0002-5058-2198Buon Kiong Lau2https://orcid.org/0000-0002-9203-2629Department of Electrical and Information Technology, Lund University, Lund, SwedenSchool of Computer Science and Information Engineering, Hefei University of Technology, Hefei, ChinaDepartment of Electrical and Information Technology, Lund University, Lund, SwedenIn recent years, the screen-to-body ratio of mobile handsets has been increasing. Today, the screen nearly fills up the entire front side. Conventionally, the screen is mainly seen as a metallic object that adversely affects antenna performance. In this paper, the large screen is used for the first time to facilitate an additional uncorrelated MIMO port in a tri-port design, for several LTE bands below 1 GHz. To this end, the screen and the terminal chassis are modeled as two metal plates and their characteristic modes are analyzed. Four modes are then tuned to resonance and selectively excited to yield three uncorrelated MIMO ports. Simulation and measurement results are in good agreement. The measured bandwidths are 23%, 17% and 21%. Within the operating band, the measured isolation is above 13 dB, envelope correlation coefficient below 0.16 and average total efficiency above 72%.https://ieeexplore.ieee.org/document/9521567/Characteristic mode analysishandset antennaMIMO systemsmobile antennamutual coupling
collection DOAJ
language English
format Article
sources DOAJ
author Hanieh Aliakbari
Li Ying Nie
Buon Kiong Lau
spellingShingle Hanieh Aliakbari
Li Ying Nie
Buon Kiong Lau
Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE Bands
IEEE Open Journal of Antennas and Propagation
Characteristic mode analysis
handset antenna
MIMO systems
mobile antenna
mutual coupling
author_facet Hanieh Aliakbari
Li Ying Nie
Buon Kiong Lau
author_sort Hanieh Aliakbari
title Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE Bands
title_short Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE Bands
title_full Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE Bands
title_fullStr Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE Bands
title_full_unstemmed Large Screen Enabled Tri-Port MIMO Handset Antenna for Low LTE Bands
title_sort large screen enabled tri-port mimo handset antenna for low lte bands
publisher IEEE
series IEEE Open Journal of Antennas and Propagation
issn 2637-6431
publishDate 2021-01-01
description In recent years, the screen-to-body ratio of mobile handsets has been increasing. Today, the screen nearly fills up the entire front side. Conventionally, the screen is mainly seen as a metallic object that adversely affects antenna performance. In this paper, the large screen is used for the first time to facilitate an additional uncorrelated MIMO port in a tri-port design, for several LTE bands below 1 GHz. To this end, the screen and the terminal chassis are modeled as two metal plates and their characteristic modes are analyzed. Four modes are then tuned to resonance and selectively excited to yield three uncorrelated MIMO ports. Simulation and measurement results are in good agreement. The measured bandwidths are 23%, 17% and 21%. Within the operating band, the measured isolation is above 13 dB, envelope correlation coefficient below 0.16 and average total efficiency above 72%.
topic Characteristic mode analysis
handset antenna
MIMO systems
mobile antenna
mutual coupling
url https://ieeexplore.ieee.org/document/9521567/
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AT liyingnie largescreenenabledtriportmimohandsetantennaforlowltebands
AT buonkionglau largescreenenabledtriportmimohandsetantennaforlowltebands
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