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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Millimeter-wave antenna with wide-scan angle radiation characteristics for MIMO applications
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Millimeter-wave antenna with wide-scan angle radiation characteristics for MIMO applications

机译：具有MIMO应用的宽扫描角辐射特性的毫米波天线

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摘要

A three-element quasi Yagi-Uda antenna array with printed metamaterial surface generated from the array of uniplanar capacitively loaded loop (CLL) unit-cells printed on the substrate operating in the band 25-30 GHz is proposed. The metamaterial surface is configured to provide a high-refractive index to tilt the electromagnetic (EM) beam from the two dipole antennas placed opposite to each other. The metamaterial region focuses the rays from the dipole antenna and hence increases the gain of the individual antennas by about 5 dBi. The antenna elements are printed on a 10 mil substrate with a center to center separation of about 0.5 lambda(0) at 28 GHz. The three-element antenna covers 25-30 GHz band with measured return loss of 10 dB and isolation greater than 15 dB between all the three ports. The measured gain of about 11 dBi is achieved for all the antenna elements. The three antenna elements radiate in three different directions and cover a radiation scan angle of 64 degrees.
机译：提出了一种三元素准八木-Uda天线阵列，该天线阵列具有印刷的超材料表面，该表面由印刷在工作于25-30 GHz频带的基板上的单平面电容性负载环路（CLL）单元电池阵列生成。超材料表面被配置为提供高折射率，以倾斜来自彼此相对放置的两个偶极天线的电磁（EM）波束。超材料区域使来自偶极天线的射线聚焦，从而使单个天线的增益增加约5 dBi。天线元件被印刷在10密耳的基板上，在28 GHz时，其中心到中心的间隔约为0.5λ（0）。三元素天线覆盖25-30 GHz频段，测得的回波损耗为10 dB，三个端口之间的隔离度均大于15 dB。对于所有天线元件，可实现约11 dBi的测量增益。三个天线元件沿三个不同方向辐射，并覆盖64度的辐射扫描角。

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