Highly isolated pin-loaded millimeter wave MIMO antenna array system for IoT-based smart environments

IF 3 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Aeu-International Journal of Electronics and Communications Pub Date : 2024-08-28 DOI:10.1016/j.aeue.2024.155500

Saba Tariq , Arbab Abdur Rahim , Waleed Tariq Sethi , Farooq Faisal , Tarek Djerafi

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Abstract

The Internet of Things (IoT) based wireless devices are mainly designed for rapid indoor millimeter-wave (mmW) communication systems. These systems often require high gain mmW antennas within a wideband MIMO framework. This work presents a high performance quad element pin-loaded multiple-input multiple-output (MIMO) antenna array for mmW communications that can be utilized within IoT-enabled smart environment. The novelty of these antenna elements lies in the incorporation of unique flower-shaped slots and shorting pins in each patch of a two-element antenna array. Moreover, a four-port MIMO antenna system is created by arranging the two element arrays in an orthogonal configuration. By employing this pattern diversity technique and incorporating shorting pins in each individual element, the adverse mutual coupling effects between adjacent elements are effectively mitigated. Experimental validation of the MIMO array prototype confirms the minimum isolation of 34 dB and high port isolation of 72 dB over the operating bandwidth from 26.31–30.25 GHz (3.96 GHz). Notably, these features together with lower correlation values and higher diversity gain, make it a good choice for mmW-based IoT devices in smart environments.

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用于基于物联网的智能环境的高隔离引脚加载毫米波 MIMO 天线阵列系统

基于物联网（IoT）的无线设备主要是为快速室内毫米波（mmW）通信系统而设计的。这些系统通常需要宽带多输入多输出（MIMO）框架内的高增益毫米波天线。本研究提出了一种用于毫米波通信的高性能四元件引脚加载多输入多输出（MIMO）天线阵列，可用于物联网智能环境。这些天线元件的新颖之处在于，在双元件天线阵列的每个贴片中加入了独特的花形插槽和短路引脚。此外，通过将两个元件阵列排列成正交配置，还创建了一个四端口 MIMO 天线系统。通过采用这种模式分集技术并在每个元件中加入短路引脚，相邻元件之间的不利相互耦合效应得到了有效缓解。MIMO 阵列原型的实验验证证实，在 26.31-30.25 GHz（3.96 GHz）的工作带宽内，最小隔离度为 34 dB，高端口隔离度为 72 dB。值得注意的是，这些特性加上较低的相关值和较高的分集增益，使其成为智能环境中基于毫米波的物联网设备的良好选择。

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.