Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Large screen enabled tri-port MIMO handset antenna for low LTE bands

Aliakbari Abar, Hanieh LU orcid ; Nie, Li Ying and Lau, Buon Kiong LU (2021) In IEEE Open Journal on Antennas and Propagation 2. p.911-920
Abstract
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%.... (More)
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%. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
MIMO systems, handset antennas, mutual coupling
in
IEEE Open Journal on Antennas and Propagation
volume
2
pages
911 - 920
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85115419723
ISSN
2637-6431
DOI
10.1109/OJAP.2021.3107436
project
Optimal MIMO Terminal Antennas for 5G and Beyond
language
English
LU publication?
yes
id
47932bf3-0383-4ef7-8472-2bf96e27e37d
date added to LUP
2021-08-16 10:45:29
date last changed
2024-02-20 10:13:49
@article{47932bf3-0383-4ef7-8472-2bf96e27e37d,
  abstract     = {{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%.}},
  author       = {{Aliakbari Abar, Hanieh and Nie, Li Ying and Lau, Buon Kiong}},
  issn         = {{2637-6431}},
  keywords     = {{MIMO systems; handset antennas; mutual coupling}},
  language     = {{eng}},
  pages        = {{911--920}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Open Journal on Antennas and Propagation}},
  title        = {{Large screen enabled tri-port MIMO handset antenna for low LTE bands}},
  url          = {{https://lup.lub.lu.se/search/files/102386874/OJAP_triport_terminal_antenna_accepted_version.pdf}},
  doi          = {{10.1109/OJAP.2021.3107436}},
  volume       = {{2}},
  year         = {{2021}},
}