Cover
Vol. 19 No. 1 (2023)

Published: June 30, 2023

Pages: 111-118

Original Article

New Design of a Compact 1×2 Super UWB-MIMO Antenna for Polarization Diversity

Watheq A. Neamah 1 Haider M. Al Sabbagh Hussain Al-Rizzo 2
1Department of Electrical Engineering, College of Engineering, University of Basrah, Basrah, Iraq
2Department of Systems Engineering, University of Arkansas University Little Rock, Little Rock, USA
History
  • Received: October 14, 2022
  • Revised: November 24, 2022
  • Accepted: December 5, 2022
  • Available Online: February 26, 2023
DOI

https://doi.org/10.37917/ijeee.19.1.14

Abstract

This paper proposes a new design of compact coplanar waveguide (CPW) fed -super ultra-wideband (S-UWB) MIMO antenna with a bandwidth of 3.6 to 40 GHz. The proposed antenna is composed of two orthogonal sector-shape monopoles (SSM) antenna elements to perform polarization diversity. In addition, a matched L-shaped common ground element is attached for more efficient coupling. The FR-4 substrate of the structure with a size of 23 × 45 × 1.6 mm3 and a dielectric constant of 4.3 is considered. The proposed design is simulated by using CST Microwave Studio commercial software. The simulation shows that the antenna has low mutual coupling (|S21| < -20 dB) with |S11|<−10 dB, ranging from 3.6 to 40 GHz. Envelope correlation coefficient (ECC) is less than 0.008, diversity gain (DG) is more than 9.99, mean effective gain (MEG) is below - 3 dB and total active reflection coefficient (TARC) is less than -6 dB over the whole response band is reported. The proposed MIMO antenna is expected efficiently cover the broadest range of frequencies for contemporary communications applications.

Keywords

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