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Generating multiple characteristic modes below 1 GHz in small terminals for MIMO antenna design

Li, Hui LU ; Miers, Zachary LU and Lau, Buon Kiong LU (2013) IEEE International Symposium on Antennas and Propagation, 2013 p.180-181
Abstract
Designing multiple antennas in small terminals at frequency bands below 1 GHz is challenging due to severe mutual coupling among antenna elements. The severe coupling is often the result of simultaneous excitation of the fundamental characteristic mode of the terminal chassis by more than one antenna element. In this work, we propose to solve the coupling problem by manipulating the chassis structure to allow more than one characteristic mode to resonate at frequencies below 1 GHz. To demonstrate our design concept and its practicality, we show the opportunistic use of the metallic bezel popular in smartphone design for obtaining two characteristic modes that can be efficiently excited by antenna elements at 0.81 GHz. Due to the inherent... (More)
Designing multiple antennas in small terminals at frequency bands below 1 GHz is challenging due to severe mutual coupling among antenna elements. The severe coupling is often the result of simultaneous excitation of the fundamental characteristic mode of the terminal chassis by more than one antenna element. In this work, we propose to solve the coupling problem by manipulating the chassis structure to allow more than one characteristic mode to resonate at frequencies below 1 GHz. To demonstrate our design concept and its practicality, we show the opportunistic use of the metallic bezel popular in smartphone design for obtaining two characteristic modes that can be efficiently excited by antenna elements at 0.81 GHz. Due to the inherent orthogonality of the modes, proper excitation of these modes by two antenna elements will result in orthogonal radiation patterns and high isolation between the antenna ports. Therefore, the proposed approach enables the effective use of the chassis to achieve MIMO antennas with good performance. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
IEEE International Symposium on Antennas and Propagation, 2013
pages
2 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
conference name
IEEE International Symposium on Antennas and Propagation, 2013
conference location
Lake Buena Vista, FL, United States
conference dates
2013-07-07 - 2013-07-13
external identifiers
  • wos:000332766800090
  • scopus:84871705216
ISSN
1947-1491
1522-3965
ISBN
978-1-4673-5317-5
DOI
10.1109/APS.2013.6710751
project
Systematic Antenna Design Using the Theory of Characteristic Modes
EIT_ANTCHN Antenna-Channel Harmonization for Throughput Enhancement in Advanced Mobile Terminals
EIT_Optantsys Novel Antenna System Design Paradigm for High Performance Mobile Communications
language
English
LU publication?
yes
id
1aa97fc0-8aec-43c1-848b-b686a92dba6d (old id 3562466)
date added to LUP
2016-04-01 10:19:26
date last changed
2024-06-02 13:44:53
@inproceedings{1aa97fc0-8aec-43c1-848b-b686a92dba6d,
  abstract     = {{Designing multiple antennas in small terminals at frequency bands below 1 GHz is challenging due to severe mutual coupling among antenna elements. The severe coupling is often the result of simultaneous excitation of the fundamental characteristic mode of the terminal chassis by more than one antenna element. In this work, we propose to solve the coupling problem by manipulating the chassis structure to allow more than one characteristic mode to resonate at frequencies below 1 GHz. To demonstrate our design concept and its practicality, we show the opportunistic use of the metallic bezel popular in smartphone design for obtaining two characteristic modes that can be efficiently excited by antenna elements at 0.81 GHz. Due to the inherent orthogonality of the modes, proper excitation of these modes by two antenna elements will result in orthogonal radiation patterns and high isolation between the antenna ports. Therefore, the proposed approach enables the effective use of the chassis to achieve MIMO antennas with good performance.}},
  author       = {{Li, Hui and Miers, Zachary and Lau, Buon Kiong}},
  booktitle    = {{IEEE International Symposium on Antennas and Propagation, 2013}},
  isbn         = {{978-1-4673-5317-5}},
  issn         = {{1947-1491}},
  language     = {{eng}},
  pages        = {{180--181}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  title        = {{Generating multiple characteristic modes below 1 GHz in small terminals for MIMO antenna design}},
  url          = {{https://lup.lub.lu.se/search/files/1746713/7765712.pdf}},
  doi          = {{10.1109/APS.2013.6710751}},
  year         = {{2013}},
}