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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >UWB MIMO antenna implemented with orthogonal quasi-circular slot dipole radiators
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UWB MIMO antenna implemented with orthogonal quasi-circular slot dipole radiators

机译：用正交准圆形缝隙偶极子辐射器实现的UWB MIMO天线

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摘要

In this paper, a very low-profile two-port ultra-wideband antenna for multiple input-multiple output applications is proposed. The antenna is implemented by using two orthogonal quasi-circular slot dipole radiators fed by coaxial lines. The antenna performs from 2 to 10 GHz, with an average peak-gain of 4 dB, and high port isolation, with values around S-21 = -20 dB and below. The radiation patterns of both antennas are opposite to each other and hence, the diversity gain reaches values around 20 dB. The low inter-port coupling and low correlation are verified by obtaining the envelope correlation coefficient, which is lower than 0.003. These calculations were made by the S-parameter and far-field methods. The total active reflection coefficient shows that the antenna operative bandwidth does not change for different input signals with random phases, preserving the operation from 2 to 10 GHz. The antenna performance is compared to different state of the art slot configurations, showing advantages to previously published work.
机译：本文提出了一种用于多输入多输出应用的超薄型两端口超宽带天线。通过使用两个由同轴线馈电的正交准圆形缝隙偶极子辐射器来实现天线。该天线的工作频率为2至10 GHz，平均峰值增益为4 dB，并且端口隔离度很高，其值在S-21 = -20 dB或以下。两个天线的辐射方向图彼此相反，因此，分集增益达到20 dB左右的值。通过获得小于0.003的包络相关系数，可以验证端口间耦合低和相关性低。这些计算是通过S参数和远场方法进行的。总的有效反射系数表明，对于具有随机相位的不同输入信号，天线的工作带宽不会改变，从而可以在2至10 GHz的频率范围内保持工作。将天线性能与现有技术的不同缝隙配置进行了比较，显示了以前发布的工作的优势。

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