Multi-Element Self-Decoupled MIMO Patch Antenna With Flexible Characteristics

doi:10.1109/ACCESS.2024.3362876

Multi-Element Self-Decoupled MIMO Patch Antenna With Flexible Characteristics

2024-01-01

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DOI：10.1109/ACCESS.2024.3362876

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This paper presents a multi-element multiple-input multiple-output (MIMO) antenna with self-isolation and flexible characteristics. The primary radiators of the proposed antenna consist of multiple ellipse-shaped patches arranged in an H-plane configuration. Self-decoupling is achieved by simultaneously different operating modes on the excited element (TM10 mode) and non-excited element (TM02 mode). The proposed method also shows strong extensibility. The measurements on the fabricated 4-element MIMO antenna demonstrate that the proposed decoupling method can improve the isolation by 14 dB. The antenna shows good MIMO diversity performances with respect to the envelope correlation coefficient and diversity gain. Additionally, the antenna also works effectively in when the substrate is bent, which contributes to significantly increasing the applicability of the proposed method in comparison with the other reported methods.

Keywords:

MIMO communication

Antennas

Scattering parameters

Current distribution

Tuning

Patch antennas

Mutual coupling

MIMO antenna

self-decoupled

patch

multi-element

Multi-Element Self-Decoupled MIMO Patch Antenna With Flexible Characteristics

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