A Highly Isolated Transparent 2 × 2 MIMO Antenna Based on Micro Metal Mesh Film

IF 1.2 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-06-18 DOI:10.1002/mop.70281

Abubaker Ahmed Elobied, Sung-Sil Cho, Yun-Seok Mun, Ic-Pyo Hong

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Abstract

In this letter, we propose a novel highly isolated transparent 2 × 2 multiple-input multiple-output (MIMO) antenna based on a micro metal mesh film. The conductive material of the MIMO antenna comprises a micro-metal mesh structure made of thin copper strips, providing a sheet resistance of 0.05 Ω/sq and a transparency of 75%. The radiating patches of the MIMO antenna are fixed onto one side of an acrylic substrate, while the ground plane is attached to the opposite side. High isolation can be attained by arranging the radiating patches orthogonally and etching a novel cross-shaped slot on the ground. The transparent 2 × 2 MIMO antenna is successfully fabricated. The results of the fabricated antenna demonstrate a center frequency of 4.9 GHz, a bandwidth of 200 MHz, and a gain of 5 dBi. The isolation between the orthogonal antennas is 33 dB, while the parallel antennas exhibit an isolation of 44 dB. The correlation between the wireless channels is less than 0.003 over the bandwidth.

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基于微金属网膜的高隔离透明2 × 2 MIMO天线

在这封信中，我们提出了一种基于微金属网膜的新型高隔离透明2 × 2多输入多输出（MIMO）天线。MIMO天线的导电材料包括由薄铜带制成的微金属网状结构，其片电阻为0.05 Ω/sq，透明度为75%。MIMO天线的辐射贴片固定在丙烯酸基板的一侧，而接地面附着在另一侧。通过正交布置辐射片并在地面上蚀刻新的十字形槽，可以获得高隔离。成功制备了透明的2 × 2 MIMO天线。结果表明，该天线的中心频率为4.9 GHz，带宽为200 MHz，增益为5 dBi。正交天线之间的隔离度为33 dB，而平行天线之间的隔离度为44 dB。无线信道间的相关系数小于0.003 /带宽。

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

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication