A Low-Profile Dual-Band Eight-Port MIMO PIFA Antenna for 5G/WLAN Sub-6 GHz Mobile Terminal

2023 6th International Conference on Advanced Communication Technologies and Networking (CommNet) Pub Date : 2023-12-11 DOI:10.1109/CommNet60167.2023.10365263

Rachida Boufouss, A. Najid

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Abstract

In this article, an 8-port, 8-element dual-band multiple input and multiple output (MIMO) Planar Inverted F-Antenna (PIFA) having a height of 2.5 mm is proposed for the 5G/WLAN sub-6 GHz mobile terminal. For achieving dual-band operation with wide bandwidth, a parasitic element and L-slot are added to the PIFA, whereas a rectangular open-ended ring is printed on the top substrate next to the parasitic element. The results show that the proposed MIMO antenna system operates at 3.43–3.8 GHz and 5.15–5.85 GHz with −6dB impedance bandwidth condition. The minimum isolation achieved between two adjacent antenna elements is better than 12.1 dB in the lower band, while in the upper band is 16 dB without using any extra decoupling techniques. Moreover, radiation efficiency, radiation pattern, envelop correlation coefficient and diversity gain are all presented in this article, showing good MIMO performances of the proposed antenna which makes it promising for 5G sub-6 GHz mobile terminal.

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用于 5G/WLAN Sub-6 GHz 移动终端的扁平双频八端口 MIMO PIFA 天线

本文为 5G/WLAN sub-6 GHz 移动终端提出了一种高度为 2.5 毫米的 8 端口、8 元件双频多输入多输出（MIMO）平面反向 F 天线（PIFA）。为实现宽带双频工作，在 PIFA 上添加了寄生元件和 L 型槽，并在寄生元件旁边的顶部基板上印刷了一个矩形开口环。结果表明，拟议的多输入多输出天线系统可在 3.43-3.8 GHz 和 5.15-5.85 GHz 频率下工作，阻抗带宽条件为 -6dB。在不使用任何额外去耦技术的情况下，两个相邻天线元件之间的最小隔离度在低频段优于 12.1 dB，而在高频段为 16 dB。此外，本文还介绍了辐射效率、辐射模式、包络相关系数和分集增益，显示了所提天线良好的多输入多输出性能，使其有望应用于 5G sub-6 GHz 移动终端。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 6th International Conference on Advanced Communication Technologies and Networking (CommNet)

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