Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-27T07:44:38.506Z Has data issue: false hasContentIssue false
  • English
  • Français

High isolation and compact MIMO antenna system with defected shorting wall

Published online by Cambridge University Press:  24 April 2014

Xi-Wang Dai Open the ORCID record for Xi-Wang Dai [Opens in a new window] ,
Long Li ,
Zhen-Ye Wang  and
Chang-Hong Liang
Xi-Wang Dai*
Affiliation:
National Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi'an 710071, Peoples Republic of China. Phone: +86-029-88204068
Long Li
Affiliation:
National Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi'an 710071, Peoples Republic of China. Phone: +86-029-88204068
Zhen-Ye Wang
Affiliation:
National Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi'an 710071, Peoples Republic of China. Phone: +86-029-88204068
Chang-Hong Liang
Affiliation:
National Laboratory of Science and Technology on Antennas and Microwaves, Xidian University, Xi'an 710071, Peoples Republic of China. Phone: +86-029-88204068
*
Corresponding author: X.-W. Dai Email: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

In this paper, a compact multiple-input multiple-output (MIMO) antenna system with high isolation is proposed for 2.4 GHz wireless local area network (WLAN) application. The system is composed of two aperture-coupled shorted patch antennas with a spacing of 4 mm (only 0.032λ). The antenna is fed with an H-shaped coupling slot, and the defected shorting wall is used for high isolation. The proposed MIMO system exhibits an isolation of better than −20 dB and a maximum isolation of −43 dB at the central frequency. The envelope correlation coefficient is less than 0.01. The simulated and measured results show that the proposed antenna is a good candidate for MIMO system with higher isolation and better diversity.

Keywords

High isolationDefected shorting wallAperture-coupled
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 7 , Issue 2 , April 2015 , pp. 167 - 172
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Sajal, K.D.: Mobile Handset Design, Wiley, Singapore, 2012.Google Scholar
[2]Astely, D. et al. : LTE: the evolution of mobile broadband. IEEE Commun. Mag., 47 (4) (2009), 44–51.CrossRefGoogle Scholar
[3]Browne, D.W. et al. : Experiments with compact antenna arrays for MIMO radio communications. IEEE Trans. Antennas Propag., 54 (11) (2006), 3239–3250.CrossRefGoogle Scholar
[4]Andersen, J. et al. : Decoupling and descattering networks for antennas. IEEE Trans. Antennas Propag., 24 (6) (1976), 841–846.CrossRefGoogle Scholar
[5]Sievenpiper, D. et al. : High-impedance electromagnetic surfaces with a forbidden frequency band. IEEE Trans. Microw. Theory Tech., 47 (11) (1999), 2059–2074.CrossRefGoogle Scholar
[6]Su, S.-W. et al. : Printed MIMO-antenna system using neutralization-line technique for wireless USB-dongle applications. IEEE Trans. Antennas Propag., 60 (2) (2012), 456–463.CrossRefGoogle Scholar
[7]Li, H. et al. : A compact planar MIMO antenna system of four elements with similar radiation characteristics and isolation structure. IEEE Antennas Wirel. Propag. Lett., 8 (2009), 1107–1110.CrossRefGoogle Scholar
[8]Lau, B.K. et al. : Unleashing multiple antenna systems in compact terminal devices, in IEEE Int. Workshop on Antenna Technology, 2–4 March 2009, 1–4.Google Scholar
[9]Zhang, S.: MIMO antenna system of two closely-positioned PIFAs with high isolation. Electron. Lett., 45 (15) (2009), 771–773.CrossRefGoogle Scholar
[10]Wong, K.L.: Compact and Broadband Microstrip Antennas, Wiley, New York, 2002.CrossRefGoogle Scholar
[11]Blanch, S. et al. : Exact representation of antenna system diversity performance from input parameter description. Electron. Lett., 39 (9) (2003), 705–707.CrossRefGoogle Scholar