A six-port MIMO antenna system for forthcoming mobile applications (Sub 6 GHz) is presented in this paper. Four F-shaped antenna elements are placed at four extreme corners and two at the middle side edges of 0.8 mm thick FR4 substrate. An open-ended slot is carved into the ground plane to improve the impedance matching. The proposed antenna operates in the frequency range of 3.4–3.6 GHz (LTE Band 42), with a-10 dB (2:1 voltage standing wave ratio) impedance bandwidth of 200 MHz. The proposed antenna operates in the frequency range of 3.4–3.6 GHz (LTE Band 42), with a-10 dB (2:1 voltage standing wave ratio) impedance bandwidth of 200–MHz. The fabricated MIMO antenna is practically measured and compared with simulated results. The obtained isolation is lower than 20 dB without employing isolation enhancing procedures, making the antenna highly appropriate for 5G smartphone applications. High isolation results in lower values of Envelope Correlation Coefficient (ECC) below 0.01. The antenna’s diversity performance is validated by calculating Total Active Reflection Co-efficient (TARC) which is better than 40 dB. The calculated channel capacity of the six-port antenna array is 32.5 bps/Hz at 20 dB Signal to Noise Ratio (SNR). The six-antenna array’s reliability is evaluated by examining the influence of hand effects and Specific Absorption Rate (SAR). The measured results are consistent with simulated results which exhibit the antenna presented in this article is highly capable of mobile phone applications for future cellular communication.

本文介绍了一种适用于即将推出的移动应用（低于 6 GHz）的六端口 MIMO 天线系统。四个F形天线单元放置在0.8毫米厚的FR4基板的四个最角落和两个中间侧边缘。接地平面上刻有一个开放式槽，以改善阻抗匹配。所提出的天线工作频率范围为 3.4–3.6 GHz（LTE 频段 42），阻抗带宽为 200 MHz，a-10 dB（2:1 电压驻波比）。所提议的天线工作频率范围为 3.4–3.6 GHz（LTE 频段 42），阻抗带宽为 200 MHz，a-10 dB（2:1 电压驻波比）。对制作的 MIMO 天线进行了实际测量并与仿真结果进行了比较。在不采用隔离增强程序的情况下，获得的隔离低于 20 dB，使该天线非常适合 5G 智能手机应用。高隔离度导致包络相关系数 (ECC) 值低于 0.01。通过计算优于 40 dB 的总有源反射系数 (TARC) 来验证天线的分集性能。计算得出的六端口天线阵列的信道容量为 32.5 bps/Hz（信噪比 (SNR) 为 20 dB）。通过检查手效应和比吸收率（SAR）的影响来评估六天线阵列的可靠性。测量结果与模拟结果一致，表明本文提出的天线非常适合未来蜂窝通信的移动电话应用。高隔离度导致包络相关系数 (ECC) 值低于 0.01。通过计算优于 40 dB 的总有源反射系数 (TARC) 来验证天线的分集性能。计算得出的六端口天线阵列的信道容量为 32.5 bps/Hz（信噪比 (SNR) 为 20 dB）。通过检查手效应和比吸收率（SAR）的影响来评估六天线阵列的可靠性。测量结果与模拟结果一致，表明本文提出的天线非常适合未来蜂窝通信的移动电话应用。高隔离度导致包络相关系数 (ECC) 值低于 0.01。通过计算优于 40 dB 的总有源反射系数 (TARC) 来验证天线的分集性能。计算得出的六端口天线阵列的信道容量为 32.5 bps/Hz（信噪比 (SNR) 为 20 dB）。通过检查手效应和比吸收率（SAR）的影响来评估六天线阵列的可靠性。测量结果与模拟结果一致，表明本文提出的天线非常适合未来蜂窝通信的移动电话应用。计算得出的六端口天线阵列的信道容量为 32.5 bps/Hz（信噪比 (SNR) 为 20 dB）。通过检查手效应和比吸收率（SAR）的影响来评估六天线阵列的可靠性。测量结果与模拟结果一致，表明本文提出的天线非常适合未来蜂窝通信的移动电话应用。计算得出的六端口天线阵列的信道容量为 32.5 bps/Hz（信噪比 (SNR) 为 20 dB）。通过检查手效应和比吸收率（SAR）的影响来评估六天线阵列的可靠性。测量结果与模拟结果一致，表明本文提出的天线非常适合未来蜂窝通信的移动电话应用。