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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]
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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 

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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