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Design of bandwidth enhanced and multiband MIMO antennas using characteristic modes

Miers, Zachary LU ; Li, Hui LU and Lau, Buon Kiong LU (2013) In IEEE Antennas and Wireless Propagation Letters 12. p.1696-1699
Abstract
Recent work has shown that, with the help of the Theory of Characteristic Modes (TCM), minor modifications of the terminal chassis can facilitate the design of orthogonal MIMO antennas with viable bandwidth at frequencies below 1 GHz. Herein, a new framework is proposed to further exploit TCM to enhance the performance of the orthogonal MIMO antennas. By correlating the characteristic currents and near fields of modes with high modal significance in a given frequency band, a single feed may be designed to excite multiple modes, leading to enlarged bandwidth. Similarly, the correlation of characteristic currents and near fields across different bands provides candidate modes that can be excited for multiband operation using a single feed.... (More)
Recent work has shown that, with the help of the Theory of Characteristic Modes (TCM), minor modifications of the terminal chassis can facilitate the design of orthogonal MIMO antennas with viable bandwidth at frequencies below 1 GHz. Herein, a new framework is proposed to further exploit TCM to enhance the performance of the orthogonal MIMO antennas. By correlating the characteristic currents and near fields of modes with high modal significance in a given frequency band, a single feed may be designed to excite multiple modes, leading to enlarged bandwidth. Similarly, the correlation of characteristic currents and near fields across different bands provides candidate modes that can be excited for multiband operation using a single feed. Moreover, the impedance matching of these modes can be improved by additional structural manipulation. As proof of concept, a dual-band (818-896MHz, 1841-2067MHz), dual-antenna prototype was designed on a 130 mm by 66 mm chassis for LTE operation. Full-wave simulation results were experimentally verified with a fabricated prototype. (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
in
IEEE Antennas and Wireless Propagation Letters
volume
12
pages
1696 - 1699
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • wos:000331301600008
  • scopus:84894136447
ISSN
1548-5757
DOI
10.1109/LAWP.2013.2292562
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
5bc955c0-ed7a-448f-971d-bfe7d4ebcc80 (old id 4146901)
alternative location
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=06675004
date added to LUP
2016-04-01 10:45:24
date last changed
2022-05-18 01:40:38
@article{5bc955c0-ed7a-448f-971d-bfe7d4ebcc80,
  abstract     = {{Recent work has shown that, with the help of the Theory of Characteristic Modes (TCM), minor modifications of the terminal chassis can facilitate the design of orthogonal MIMO antennas with viable bandwidth at frequencies below 1 GHz. Herein, a new framework is proposed to further exploit TCM to enhance the performance of the orthogonal MIMO antennas. By correlating the characteristic currents and near fields of modes with high modal significance in a given frequency band, a single feed may be designed to excite multiple modes, leading to enlarged bandwidth. Similarly, the correlation of characteristic currents and near fields across different bands provides candidate modes that can be excited for multiband operation using a single feed. Moreover, the impedance matching of these modes can be improved by additional structural manipulation. As proof of concept, a dual-band (818-896MHz, 1841-2067MHz), dual-antenna prototype was designed on a 130 mm by 66 mm chassis for LTE operation. Full-wave simulation results were experimentally verified with a fabricated prototype.}},
  author       = {{Miers, Zachary and Li, Hui and Lau, Buon Kiong}},
  issn         = {{1548-5757}},
  language     = {{eng}},
  pages        = {{1696--1699}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Antennas and Wireless Propagation Letters}},
  title        = {{Design of bandwidth enhanced and multiband MIMO antennas using characteristic modes}},
  url          = {{https://lup.lub.lu.se/search/files/42807311/miers_awp2013.pdf}},
  doi          = {{10.1109/LAWP.2013.2292562}},
  volume       = {{12}},
  year         = {{2013}},
}