ABSTRACT This paper presents a novel two-element multiple input multiple output (MIMO) reconfigurable antenna that can be switched among 600 MHz, 1.8, 2.4, 3.5, and 5.5 GHz bands. The proposed antenna consists of two semi-circular ring-shaped strip-lines and a rectangular slot on the top conducting layer of the substrate and a U-shaped slot, etched on the bottom side of the substrate. Frequency reconfigurable characteristics have been achieved using single pole four throw radio frequency micro-electro-mechanical system switch. The switch has been installed in the ground slot. The dimensions of the proposed MIMO antenna are 32 × 98 × 1 mm3. Measured isolation greater than 15 dB has been achieved in the operating bands. The calculated envelop correlation coefficient is less than 0.04 and the diversity gain in the operating bands is greater than 9.8 dB.

中文翻译：

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具有频率可重构特性的二元 MIMO 天线，利用 RF MEMS 实现 5G 应用

摘要 本文提出了一种新型二元多输入多输出 (MIMO) 可重构天线，可在 600 MHz、1.8、2.4、3.5 和 5.5 GHz 频段之间切换。所提出的天线由两条半圆形环形带状线和一个位于基板顶部导电层上的矩形槽和一个蚀刻在基板底部的 U 形槽组成。使用单刀四掷射频微机电系统开关实现了频率可重构特性。开关已安装在接地槽中。所提出的 MIMO 天线的尺寸为 32 × 98 × 1 mm3。在工作频段中实现了大于 15 dB 的测量隔离。计算的包络相关系数小于0.04，工作频段的分集增益大于9。