Omnidirectional Solid Angle Beam-Switching Flexible Array Antenna in Millimeter Wave for 5G Micro Base Station Applications
Omnidirectional Solid Angle Beam-Switching Flexible Array Antenna in Millimeter Wave for 5G Micro Base Station Applications
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适用于 5G 微基站应用的毫米波全向立体角波束切换柔性阵列天线
DOI：
10.1109/access.2019.2946372
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发表时间：
2019-01-01
期刊：
影响因子：
3.9
通讯作者：
Duan, Junping
中科院分区：
文献类型：
--
作者：
Jia, Qinyin;Xu, Hongcheng;Duan, Junping
本研究提出了一种用于第五代（5G）微基站应用的圆柱形共形阵列天线（CCAA）。CCAA由5个切比雪夫柔性线阵天线（LAAs）组成，在圆柱表面上沿圆周均匀排列。利用切比雪夫方法综合单元电流幅值分布系数，构造对数周期排列的LAA。半功率带宽（HPBW）大于76度（-38.41度至38.58度）且峰值增益大于10 dBi的LAA通过微机电系统工艺制造。性价比分析表明，5个线性阵列是最佳的阵列数目。通过将射频半导体开关连接到八路功分器的激励端口，分别激励包裹在圆柱表面上的五个LAA，实现圆周截面的全方位开关扫描。此外，波束开关扫描的CCAA测量的援助下，一个标准的暗室。具有低互耦和高实现增益的辐照性能被验证为与缠绕在圆柱表面上的LAAs的各种柔性实验的结构变化无关。具有波束开关扫描的CCAA工作在26 GHz，属于5G毫米波段。结果表明，该天线在H平面内实现了全向扫描，在E平面内的HPBW仅为9.08 °。CCAA的性能在灵活的终端设备无线通信中具有潜在的优势。
This study proposes a cylindrical conformal array antenna (CCAA) for fifth-generation (5G) micro base station applications. The CCAA is composed of five Chebyshev flexible linear array antennas (LAAs) with a circumferentially uniform arrangement on the cylindrical surface. The LAA with a logarithmic periodic arrangement is constructed by synthesizing the current amplitude distribution coefficients in elements with the Chebyshev method. The LAA with a half-power bandwidth (HPBW) wider than 76 degrees (-38.41 degrees to 38.58 degrees) and a peak gain greater than 10 dBi is fabricated via the micro-electromechanical system process. Cost-performance analysis shows that five is the best number of linear arrays. To achieve omnidirectional switching scanning of the circumferential section, five LAAs wrapped on the cylindrical surface are individually excited by connecting a radio frequency semiconductor switch to the exciting ports of an eight-way power divider. Moreover, beam-switch scanning of the CCAA is measured with the aid of a standard anechoic chamber. The irradiated performance with low mutual coupling and high realized gain is verified to be irrelevant to the structural variation of various flexible experiments of LAAs wrapped around a cylindrical surface. The CCAA with beam-switch scanning operates at 26 GHz and belongs to the 5G millimeter-wave band. Results show the proposed antenna achieves omnidirectional scanning property in the H plane and has a HPBW of only 9.08 degrees in the E plane. The performances of the CCAA present potential advantage in flexible terminal equipment wireless communication.