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A compact planar MIMO antenna system of four elements with similar radiation characteristics and isolation structure

Li, Hui LU ; Xiong, Jiang and He, Sailing (2009) In IEEE Antennas and Wireless Propagation Letters 8. p.1107-1110
Abstract
A compact planar multiple-input-multiple-output (MIMO) antenna system of four elements with similar radiation characteristics is proposed for the whole 2.4-GHz WLAN band. It consists of two proximity-coupled fed microstrip square ring patch antennas and two lambda/4 microstrip slot antennas of the same linear polarization. These two types of antennas are printed on different sides of the substrate to reduce mutual coupling. With a novel isolation structure etched on the ground plane of the FR4 substrate, high port isolation (below -25 dB) and good MIMO performance are achieved. The overall lateral size of the MIMO system is only 0.64lambda times 0.48A, and good impedance matching (S11 < 10 dB) is achieved across the operating band for... (More)
A compact planar multiple-input-multiple-output (MIMO) antenna system of four elements with similar radiation characteristics is proposed for the whole 2.4-GHz WLAN band. It consists of two proximity-coupled fed microstrip square ring patch antennas and two lambda/4 microstrip slot antennas of the same linear polarization. These two types of antennas are printed on different sides of the substrate to reduce mutual coupling. With a novel isolation structure etched on the ground plane of the FR4 substrate, high port isolation (below -25 dB) and good MIMO performance are achieved. The overall lateral size of the MIMO system is only 0.64lambda times 0.48A, and good impedance matching (S11 < 10 dB) is achieved across the operating band for all the antenna elements. Full spherical radiation patterns are measured for the MIMO system, showing similar radiation characteristics, and the gains are above 2.3 dB across the operating band. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Antennas and Wireless Propagation Letters
volume
8
pages
1107 - 1110
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:77949504564
ISSN
1548-5757
DOI
10.1109/LAWP.2009.2034110
language
English
LU publication?
no
id
325adcc4-407e-477f-8e54-180531df7d48 (old id 3052607)
date added to LUP
2012-11-06 13:22:19
date last changed
2017-11-12 04:07:14
@article{325adcc4-407e-477f-8e54-180531df7d48,
  abstract     = {A compact planar multiple-input-multiple-output (MIMO) antenna system of four elements with similar radiation characteristics is proposed for the whole 2.4-GHz WLAN band. It consists of two proximity-coupled fed microstrip square ring patch antennas and two lambda/4 microstrip slot antennas of the same linear polarization. These two types of antennas are printed on different sides of the substrate to reduce mutual coupling. With a novel isolation structure etched on the ground plane of the FR4 substrate, high port isolation (below -25 dB) and good MIMO performance are achieved. The overall lateral size of the MIMO system is only 0.64lambda times 0.48A, and good impedance matching (S11 &lt; 10 dB) is achieved across the operating band for all the antenna elements. Full spherical radiation patterns are measured for the MIMO system, showing similar radiation characteristics, and the gains are above 2.3 dB across the operating band.},
  author       = {Li, Hui and Xiong, Jiang and He, Sailing},
  issn         = {1548-5757},
  language     = {eng},
  pages        = {1107--1110},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Antennas and Wireless Propagation Letters},
  title        = {A compact planar MIMO antenna system of four elements with similar radiation characteristics and isolation structure},
  url          = {http://dx.doi.org/10.1109/LAWP.2009.2034110},
  volume       = {8},
  year         = {2009},
}