Mutual Coupling Reduction of a Wideband Circularly Polarized Microstrip MIMO Antenna

Ismahayati Adam; Mohd Najib Mohd Yasin; Nurulazlina Ramli; Muzammil Jusoh; Hasliza A. Rahim; Tarik Bin Abdul Latef; Tengku Faiz Tengku Mohmed Noor Izam; Thennarasan Sabapathy

doi:10.1109/ACCESS.2019.2928899

IEEE Access (Jan 2019)

Mutual Coupling Reduction of a Wideband Circularly Polarized Microstrip MIMO Antenna

Ismahayati Adam,
Mohd Najib Mohd Yasin,
Nurulazlina Ramli,
Muzammil Jusoh,
Hasliza A. Rahim,
Tarik Bin Abdul Latef,
Tengku Faiz Tengku Mohmed Noor Izam,
Thennarasan Sabapathy

Affiliations

Ismahayati Adam: ORCiD; Bioelectromagnetics Research Group, School of Computer and Communication Engineering, Universiti Malaysia Perlis, Arau, Malaysia
Mohd Najib Mohd Yasin: Bioelectromagnetics Research Group, School of Microelectronic Engineering, Universiti Malaysia Perlis, Arau, Malaysia
Nurulazlina Ramli: Centre of Advanced Electrical and Electronic Systems, Faculty of Engineering and the Built Environment, SEGi University, Kota Damansara, Malaysia
Muzammil Jusoh: ORCiD; Bioelectromagnetics Research Group, School of Computer and Communication Engineering, Universiti Malaysia Perlis, Arau, Malaysia
Hasliza A. Rahim: ORCiD; Bioelectromagnetics Research Group, School of Computer and Communication Engineering, Universiti Malaysia Perlis, Arau, Malaysia
Tarik Bin Abdul Latef: ORCiD; Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
Tengku Faiz Tengku Mohmed Noor Izam: Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
Thennarasan Sabapathy: Bioelectromagnetics Research Group, School of Computer and Communication Engineering, Universiti Malaysia Perlis, Arau, Malaysia

DOI: https://doi.org/10.1109/ACCESS.2019.2928899
Journal volume & issue: Vol. 7
pp. 97838 – 97845

Abstract

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Mutual coupling (MC) between elements in an antenna array could significantly affect antenna performance, but this effect has rarely been reported for circularly polarized (CP) antennas. Therefore, this paper investigates a wideband CP multiple-input-multiple-output (MIMO) antenna operating between 1.8 and 2.6 GHz. A line patch was introduced between closely placed radiating elements (0.3λ) to produce a high isolation between elements in the proposed antenna. The designed MIMO antenna has a wide impedance bandwidth, a wide axial ratio (AR) bandwidth, a very low MC (S21 <; -25 dB), a low envelop correlation coefficient (ECC <; 0.01), a high diversity gain (DG ~ 10 dB), and a realized gain of above 2 dB over the entire frequencies. The prototype of the proposed antenna geometry was fabricated and measured. A good agreement between the simulated and measured results was observed.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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