Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes

Hanieh Aliakbari Abar; Qiuyan Liang; Buon Kiong Lau

doi:10.23919/EuCAP48036.2020.9135391

Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes

Hanieh Aliakbari Abar, Qiuyan Liang, Buon Kiong Lau

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

71 Downloads (Pure)

Abstract

Multiple-input multiple-out (MIMO) is a mature technology in modern wireless communications. However, it is challenging to implement multi-antennas for MIMO operation in compact mobile terminals, due to high mutual coupling and correlation among closely spaced antenna elements. Moreover, a conventional terminal chassis only offers one resonant mode below 1 GHz, complicating multi-antenna design. Recently, it has been shown that the chassis can be modified to facilitate a few resonant modes below 1 GHz. However, attempts to excite these modes selectively using a single coupling feed per antenna port result in limited bandwidth and isolation. In this work, we propose dual-feed antenna ports to improve selective feeding of the resonant modes of an existing two-port MIMO terminal antenna below 1 GHz. Simulation results reveal significantly enhanced bandwidths of 30% and 15% for the two ports, as well as high isolation of over 32 dB.

Original language	English
Title of host publication	14th European Conference on Antennas and Propagation (EuCAP)
Publisher	IEEE - Institute of Electrical and Electronics Engineers Inc.
DOIs	https://doi.org/10.23919/EuCAP48036.2020.9135391
Publication status	Published - 2020
Event	14th European Conference on Antennas and Propagation – EuCAP 2020 - Copenhagen, Denmark Duration: 2020 Mar 15 → 2020 Mar 20

Conference

Conference	14th European Conference on Antennas and Propagation – EuCAP 2020
Country/Territory	Denmark
City	Copenhagen
Period	2020/03/15 → 2020/03/20

Subject classification (UKÄ)

Communication Systems

Access to Document

10.23919/EuCAP48036.2020.9135391

PID6204991Accepted author manuscript, 871 KB

4 Paper in conference proceeding
2 Article

Large screen enabled tri-port MIMO handset antenna for low LTE bands
Aliakbari Abar, H., Nie, L. Y. & Lau, B. K., 2021, In: IEEE Open Journal on Antennas and Propagation. 2, 0, p. 911-920
Research output: Contribution to journal › Article › peer-review

Open Access
File
48 Downloads (Pure)
Low-profile two-port MIMO terminal antenna for low LTE bands with wideband multimodal excitation
Aliakbari Abar, H. & Lau, B. K., 2020, In: IEEE Open Journal on Antennas and Propagation. 1, p. 368-378
Research output: Contribution to journal › Article › peer-review

Open Access
File
119 Downloads (Pure)
Wideband excitation and matching of fundamental chassis mode using inductive coupling element
Aliakbari Abar, H. & Lau, B. K., 2020 Jul, 2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting. IEEE - Institute of Electrical and Electronics Engineers Inc., 2 p.
Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Open Access
File

1 Finished
1 Active

Optimal MIMO Terminal Antennas for 5G and Beyond
Lau, B. K. & Aliakbari Abar, H.
2017/12/01 → …
Project: Dissertation
EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications
Sunesson, A., Li, H., VASILEV, I., Lindstrand, J., Tian, R., Zhang, S., Miers, Z., Lau, B. K., Plicanic, V. & Sjöland, H.
2011/10/01 → 2019/12/31
Project: Research

Cite this

@inproceedings{f67b5386307542429f77c42e884b73bf,

title = "Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes",

abstract = "Multiple-input multiple-out (MIMO) is a mature technology in modern wireless communications. However, it is challenging to implement multi-antennas for MIMO operation in compact mobile terminals, due to high mutual coupling and correlation among closely spaced antenna elements. Moreover, a conventional terminal chassis only offers one resonant mode below 1 GHz, complicating multi-antenna design. Recently, it has been shown that the chassis can be modified to facilitate a few resonant modes below 1 GHz. However, attempts to excite these modes selectively using a single coupling feed per antenna port result in limited bandwidth and isolation. In this work, we propose dual-feed antenna ports to improve selective feeding of the resonant modes of an existing two-port MIMO terminal antenna below 1 GHz. Simulation results reveal significantly enhanced bandwidths of 30% and 15% for the two ports, as well as high isolation of over 32 dB.",

author = "{Aliakbari Abar}, Hanieh and Qiuyan Liang and Lau, {Buon Kiong}",

year = "2020",

doi = "10.23919/EuCAP48036.2020.9135391",

language = "English",

booktitle = "14th European Conference on Antennas and Propagation (EuCAP)",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "14th European Conference on Antennas and Propagation – EuCAP 2020 ; Conference date: 15-03-2020 Through 20-03-2020",

}

Aliakbari Abar, H , Liang, Q & Lau, BK 2020, Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes. in 14th European Conference on Antennas and Propagation (EuCAP). IEEE - Institute of Electrical and Electronics Engineers Inc., 14th European Conference on Antennas and Propagation – EuCAP 2020, Copenhagen, Denmark, 2020/03/15. https://doi.org/10.23919/EuCAP48036.2020.9135391

Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes. / Aliakbari Abar, Hanieh ; Liang, Qiuyan ; Lau, Buon Kiong.
14th European Conference on Antennas and Propagation (EuCAP). IEEE - Institute of Electrical and Electronics Engineers Inc., 2020.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes

AU - Aliakbari Abar, Hanieh

AU - Liang, Qiuyan

AU - Lau, Buon Kiong

PY - 2020

Y1 - 2020

N2 - Multiple-input multiple-out (MIMO) is a mature technology in modern wireless communications. However, it is challenging to implement multi-antennas for MIMO operation in compact mobile terminals, due to high mutual coupling and correlation among closely spaced antenna elements. Moreover, a conventional terminal chassis only offers one resonant mode below 1 GHz, complicating multi-antenna design. Recently, it has been shown that the chassis can be modified to facilitate a few resonant modes below 1 GHz. However, attempts to excite these modes selectively using a single coupling feed per antenna port result in limited bandwidth and isolation. In this work, we propose dual-feed antenna ports to improve selective feeding of the resonant modes of an existing two-port MIMO terminal antenna below 1 GHz. Simulation results reveal significantly enhanced bandwidths of 30% and 15% for the two ports, as well as high isolation of over 32 dB.

AB - Multiple-input multiple-out (MIMO) is a mature technology in modern wireless communications. However, it is challenging to implement multi-antennas for MIMO operation in compact mobile terminals, due to high mutual coupling and correlation among closely spaced antenna elements. Moreover, a conventional terminal chassis only offers one resonant mode below 1 GHz, complicating multi-antenna design. Recently, it has been shown that the chassis can be modified to facilitate a few resonant modes below 1 GHz. However, attempts to excite these modes selectively using a single coupling feed per antenna port result in limited bandwidth and isolation. In this work, we propose dual-feed antenna ports to improve selective feeding of the resonant modes of an existing two-port MIMO terminal antenna below 1 GHz. Simulation results reveal significantly enhanced bandwidths of 30% and 15% for the two ports, as well as high isolation of over 32 dB.

U2 - 10.23919/EuCAP48036.2020.9135391

DO - 10.23919/EuCAP48036.2020.9135391

M3 - Paper in conference proceeding

BT - 14th European Conference on Antennas and Propagation (EuCAP)

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - 14th European Conference on Antennas and Propagation – EuCAP 2020

Y2 - 15 March 2020 through 20 March 2020

ER -

Enhanced low band MIMO terminal antenna based on selective feeding of chassis modes

Abstract

Conference

Subject classification (UKÄ)

Access to Document

Fingerprint

Research output

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

Low-profile two-port MIMO terminal antenna for low LTE bands with wideband multimodal excitation

Wideband excitation and matching of fundamental chassis mode using inductive coupling element

Projects

Optimal MIMO Terminal Antennas for 5G and Beyond

EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications

Cite this