A planar LTE/sub-6 GHz 5G multiple-input and multiple-output (MIMO) antenna integrated with mmWave 5G beamforming phased array antennas for future vehicle-to-everything (V2X) applications is proposed. The proposed antenna consists of two multi-band elements for LTE and sub-6 GHz 5G bands, two single-band elements for the sub-6 GHz 5G band, and four mmWave 5G beamforming phased array antennas. Two compact multi-band antennas are located on the opposite side of the ground plane and are arranged orthogonally to each other. Four mmWave 5G beamforming phased array antennas are located at the four sides of the ground plane for 360 ^° coverage in the azimuth plane. All antennas are optimised for loading with a polycarbonate dielectric housing. The proposed antenna satisfies the −10 dB reflection coefficient ( S ₁₁ ) requirement from 0.84 to 0.96 GHz, 1.22 to 2.04 GHz, 2.42 to 4.62 GHz, 25.1 to 31.4 GHz, and 33 to 34.8 GHz. A high isolation level of >20 dB is achieved. The realised gains of the low band antennas are higher than 2.51 dBi, while those of the mmWave 5G array antennas are higher than 15.6 and 11.3 dBi at 0 ^° and 45 ^° scan angles, respectively.

中文翻译：

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平面LTE / sub-6 GHz 5G MIMO天线与mmWave 5G波束成形相控阵天线集成在一起，用于V2X应用

提出了一种平面LTE / sub-6 GHz 5G多输入多输出（MIMO）天线，该天线与mmWave 5G波束成形相控阵天线集成在一起，可用于未来的车对所有（V2X）应用。拟议的天线由用于LTE和6 GHz以下5G频带的两个多频带元件，用于6 GHz 5G以下频带的两个单频带元件和四个mmWave 5G波束成形相控阵天线组成。两个紧凑的多频带天线位于接地平面的相对侧，并且彼此正交。四个mmWave 5G波束成形相控阵天线位于接地层的四个侧面，以在方位角平面内进行360 ^°覆盖。所有天线均经过优化，可装载聚碳酸酯电介质外壳。拟议的天线满足-10 dB的反射系数（ 小号 ₁₁ ）要求从0.84至0.96 GHz，1.22至2.04 GHz，2.42至4.62 GHz，25.1至31.4 GHz和33至34.8 GHz。达到> 20 dB的高隔离度。低频段天线的实现增益高于2.51 dBi，而毫米波5G阵列天线的实现增益分别在0 ^°和45 ^°扫描角时分别高于15.6和11.3 dBi 。