This work demonstrates an integrated multiple-input multiple-output (MIMO) antenna solution for Long Term Evolution (LTE) and Millimeter-Wave (mm-wave) 5G wireless communication services. The proposed structure is comprised of a two-element LTE MIMO antenna, and a four-element 5G MIMO configuration with rectangular and circular defects in the ground plane. For experimental validation, the proposed structure is fabricated on a Rogers RO4350B substrate with 0.76 mm thickness. The overall substrate dimensions are 75 mm × 110 mm. The proposed structure is capable of operating at 5.29–6.12 GHz (LTE 46 and 47 bands) and 26–29.5 GHz (5G mm-wave) frequency bands. Additionally, the measured peak gain of 5.13 and 9.53 dB is attained respectively for the microwave and mm-wave antennas. Furthermore, the analysis of the MIMO performance metrics demonstrates good characteristics, and excellent field correlation performance across the operating bands. Furthermore, the analysis of the Specific Absorption Rate (SAR) and Power Density (PD) at the lower frequency band (5.9 GHz) and PD only at mm-Wave frequency band (28 GHz) verifies that the proposed antenna system satisfies the international human safety standards. Therefore, the proposed integrated MIMO antenna configuration ascertains to be a potential contender for the forthcoming communication applications.

中文翻译：

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适用于4G / 5G无线终端的集成LTE和毫米波5G MIMO天线系统。

这项工作演示了用于长期演进（LTE）和毫米波（mm-wave）5G无线通信服务的集成多输入多输出（MIMO）天线解决方案。所提出的结构由两元素LTE MIMO天线和在接地平面中具有矩形和圆形缺陷的四元素5G MIMO配置组成。为了进行实验验证，在具有0.76 mm厚度的Rogers RO4350B基板上制造了建议的结构。整个基板尺寸为75毫米×110毫米。拟议的结构能够在5.29–6.12 GHz（LTE 46和47频段）和26–29.5 GHz（5G毫米波）频段上运行。另外，微波天线和毫米波天线的测量峰值增益分别达到5.13和9.53 dB。此外，MIMO性能指标的分析显示出良好的特性，并且在整个工作频段上具有出色的场相关性能。此外，对较低频段（5.9 GHz）的比吸收率（SAR）和功率密度（PD）以及仅毫米波频段（28 GHz）的PD的分析验证了拟议的天线系统满足了国际人类的要求。安全标准。因此，所提出的集成MIMO天线配置确定为即将到来的通信应用的潜在竞争者。9 GHz）和PD仅在毫米波频段（28 GHz）上验证了所提议的天线系统符合国际人类安全标准。因此，所提出的集成MIMO天线配置确定为即将到来的通信应用的潜在竞争者。9 GHz）和PD仅在毫米波频段（28 GHz）上验证了所提议的天线系统符合国际人类安全标准。因此，所提出的集成MIMO天线配置确定为即将到来的通信应用的潜在竞争者。