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Electronics 2019, 8(1), 68; https://doi.org/10.3390/electronics8010068

Characteristic Mode Analysis and Design of Wide Band MIMO Antenna Consisting of Metamaterial Unit Cell

School of Electronics and Information Engineering, Hebei University of Technology, Tianjin 300401, China
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Received: 1 December 2018 / Revised: 22 December 2018 / Accepted: 2 January 2019 / Published: 8 January 2019
(This article belongs to the Special Issue Intelligent Antennas)
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Abstract

This paper presents a full wave simulation and characteristic mode-based design of a multiple-input-multiple-output (MIMO) antenna at 5.8 GHz for wireless local area network applications. The driven analysis comprises two antennas that are placed orthogonal to each other. A metamaterial unit structure in the form of a rectangular loop resonator is placed around the antenna element to reduce the electromagnetic interference and to increase the isolation between the two monopoles. A characteristic mode technique is employed to find out the dominant mode of the proposed antenna without a feeding port. It was revealed that mode 1 was the dominant mode among the three modes used. The MIMO antenna is constructed and measured using a vector network analyzer. A good isolation of less than 25 dB was attained with a wide impedance bandwidth of 65.5%. View Full-Text
Keywords: rectangular loop resonator; multiple-input-multiple-output (MIMO); mutual coupling; envelope correlation coefficient rectangular loop resonator; multiple-input-multiple-output (MIMO); mutual coupling; envelope correlation coefficient
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Jabire, A.H.; Zheng, H.-X.; Abdu, A.; Song, Z. Characteristic Mode Analysis and Design of Wide Band MIMO Antenna Consisting of Metamaterial Unit Cell. Electronics 2019, 8, 68.

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