Design of quad element MIMO array with EBG structure for mutual coupling reduction

Sakib, Md. Abu Tayab and Islam, Md. Rafiqul and Islam, Md. Shazzadul and Asadullah, G. M. and Bashri, Mohd Saiful Riza (2023) Design of quad element MIMO array with EBG structure for mutual coupling reduction. In: 9th International Conference on Computer and Communication Engineering (ICCCE 2023), 15-16 August 2023, Kuala Lumpur.

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Abstract

Multiple Input Multiple Output (MIMO) array antennas that may transmit radio waves in various patterns and polarizations have been increasingly important in current telecommunication systems. However, the mutual coupling effect is the major drawback of the MIMO system. Electromagnetic Band Gap (EBG) is a good solution for planar arrays to reduce the effects of mutual coupling. A simple EBG structure has been proposed in this paper to reduce the mutual coupling effect for a quad element (2×2) MIMO array. First, a single inset-fed microstrip patch antenna has been designed that resonates at 4.2 GHz with minimum return loss as low as -40 dB. A rectangular shape EBG structure with a dimension of 6 × 13 mm has been implemented between the radiating patches. Each EBG unit cell consists of 3 rectangular shape slots with a dimension of 2×3 mm. The simulation result shows that the antenna can radiate around 95% of its power to the receiver and gives a good directive pattern as well. The quad-element MIMO array with the EBG structure has a minimum return loss of less than -50 dB and maximum isolation of more than 20 dB. Therefore, a quad-element MIMO array with the proposed EBG structure can provide better performance in 5G applications.

Item Type:	Proceeding Paper (Plenary Papers)
Uncontrolled Keywords:	MIMO array, patch antenna, inset fed, EBG structure, rectangular shape.
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering Kulliyyah of Engineering
Depositing User:	Dr. Md. Rafiqul Islam
Date Deposited:	01 Nov 2023 12:00
Last Modified:	01 Nov 2023 12:00
URI:	http://irep.iium.edu.my/id/eprint/107815

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