Wideband self-isolated MIMO antenna element based on multiple adjacent modes coupling current cancellation for 5G mobile terminal application

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Frequenz Pub Date : 2023-07-25 DOI:10.1515/freq-2022-0293

Bo Pang, Wei Hu, Wen Jiang, Jie Liu, Bao Lu

引用次数: 0

Abstract

Abstract In this article, a wideband self-isolated multiple-input multiple-output (MIMO) antenna element based on multiple adjacent modes coupling current cancellation is proposed for 5G mobile terminal. The wideband self-isolated technology based on multiple adjacent mode coupling current cancellation are demonstrated. With the combination of five adjacent loop modes, the −6 dB bandwidth of the proposed self-isolated element can cover 3.3–3.8 GHz and 4.4–5.0 GHz. Finally, an 8 × 8 MIMO array is constructed by arranging eight proposed wideband self-isolated antenna elements on the two long sides of the mobile terminal. Simulated and measured results show that the isolation of 8 × 8 MIMO array exceeds 15 dB without any decoupling structures in the operating frequency band. The proposed antenna elements are simply arranged to obtain a wideband high isolation MIMO array, and it is a good choice for 5G mobile terminal.

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基于多邻模耦合电流消除的宽带自隔离MIMO天线元件在5G移动终端中的应用

本文提出了一种基于多相邻模式耦合电流抵消的5G移动终端宽带自隔离多输入多输出(MIMO)天线单元。介绍了基于多相邻模耦合电流抵消的宽带自隔离技术。结合五种相邻的环路模式，所提出的自隔离元件的−6 dB带宽可以覆盖3.3-3.8 GHz和4.4-5.0 GHz。最后，通过在移动终端的长两侧布置8个宽带自隔离天线单元，构建了8 × 8 MIMO阵列。仿真和实测结果表明，8 × 8 MIMO阵列的隔离度超过15 dB，在工作频带内不存在去耦结构。所提出的天线单元经过简单排列，可获得宽带高隔离MIMO阵列，是5G移动终端的良好选择。

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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来源期刊

Frequenz 工程技术-工程：电子与电气

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

3 months

期刊介绍： Frequenz is one of the leading scientific and technological journals covering all aspects of RF-, Microwave-, and THz-Engineering. It is a peer-reviewed, bi-monthly published journal. Frequenz was first published in 1947 with a circulation of 7000 copies, focusing on telecommunications. Today, the major objective of Frequenz is to highlight current research activities and development efforts in RF-, Microwave-, and THz-Engineering throughout a wide frequency spectrum ranging from radio via microwave up to THz frequencies. RF-, Microwave-, and THz-Engineering is a very active area of Research & Development as well as of Applications in a wide variety of fields. It has been the key to enabling technologies responsible for phenomenal growth of satellite broadcasting, wireless communications, satellite and terrestrial mobile communications and navigation, high-speed THz communication systems. It will open up new technologies in communications, radar, remote sensing and imaging, in identification and localization as well as in sensors, e.g. for wireless industrial process and environmental monitoring as well as for biomedical sensing.