Polarization-Reconfigurable Antenna Array for Millimeter-Wave 5G
Polarization-Reconfigurable Antenna Array for Millimeter-Wave 5G
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DOI：
10.1109/access.2019.2939815
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发表时间：
2019-01-01
期刊：
影响因子：
3.9
通讯作者：
Abbosh, Amin M.
中科院分区：
文献类型：
--
作者：
Al Abbas, Emad;Nguyen-Trong, Nghia;Abbosh, Amin M.
提出了 5G 4 单元天线阵列系统的设计，该系统能够在右旋圆极化 (RHCP) 和左旋圆极化 (LHCP) 之间切换操作。 CP 可重构性是通过电子切换馈电电路中的两个 PIN 二极管对来实现的，馈电电路由支线耦合器和两个馈电臂组成。所提出的配置减少了调谐元件的数量，并允许在毫米波频率下使用不完美的 PIN 二极管。制造的原型在 27.2 至 28.35 GHz 范围内具有 3 dB 轴比带宽。两种 CP 状态均可实现约 6 dBic 的最大测量增益和约 51% 的带宽辐射效率。
The design of 5G 4-element antenna array system with the capability of switching its operation between right hand circular polarization (RHCP) and left hand circular polarization (LHCP) is proposed. The CP-reconfigurability is achieved by electronically switching two PIN-diode pairs in the feeding circuit, which consists of a branch line coupler and two feeding arms. The proposed configuration reduces the number of tuning elements and allows the use of imperfect PIN diodes at millimeter-wave frequency. The fabricated prototype exhibits a 3-dB axial ratio bandwidth from 27.2 to 28.35 GHz. A maximum measured gain of about 6 dBic and a radiation efficiency of around 51% over the bandwidth are achieved for both CP states.