Mutual Coupling Reduction of Dual-Band Uni-Planar MIMO System Using Neutralization Line Technique

Authors

  • Adham M. Saleh School of Electrical Engineering and Computer Science University of Bradford, Bradford, BD7 1DP, UK ,College of Electronic Engineering Ninevah University, Mosul, Iraq
  • Tariq A. Nagim College of Electronic Engineering Ninevah University, Mosul, Iraq
  • Raed A. Abd-Alhameed School of Electrical Engineering and Computer Science University of Bradford, Bradford, BD7 1DP, UK
  • James M. Noras School of Electrical Engineering and Computer Science University of Bradford, Bradford, BD7 1DP, UK
  • Chan H. See School of Engineering and the Built Environment Edinburgh Napier University, Edinburgh, EH14 1DJ

Keywords:

MIMO antenna, mutual coupling, parasitic elements, WLAN

Abstract

This paper presents a low–profile dual-band (2×2) MIMO antenna that works at 2.4GHz, 5.2GHz and 5.8GHz for wireless local area networks (WLAN) applications. A neutralization line technique for enhancing the isolation is used by introducing a strip line with a length of λg/4 at the isolation frequency (2.4GHz) between the radiating elements. The overall dimensions of the proposed antenna are 36×33.5×1.6 mm3. The antenna is fabricated and tested to validate the simulation results. The practical results show fair agreements with the simulated outcomes. The antenna achieves impedance bandwidths from 2.15GHz to 2.52GHz and from 4.5GHZ to 6.45GHz for reflection coefficient |S11| < -10dB. On the other hand, the result of S21 for the two bands is better than -10dB and it has reached to -25dB around 2.4GHz and -35dB around 5.5GHz. The MIMO antenna performance characteristics are reported in terms of scattering parameters, envelope correlation coefficient (ECC), total active reflection coefficient (TARC), channel capacity loss (CCL), diversity gain (DG) and antenna radiation patterns. Analysis of these characteristics indicates that the design is appropriate for the WLAN.

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Published

2020-02-01

How to Cite

[1]
Adham M. Saleh, Tariq A. Nagim, Raed A. Abd-Alhameed, James M. Noras, and Chan H. See, “Mutual Coupling Reduction of Dual-Band Uni-Planar MIMO System Using Neutralization Line Technique”, ACES Journal, vol. 35, no. 2, pp. 176–186, Feb. 2020.

Issue

2020: Vol 35 Iss 2

Section

Articles