一款2×2宽带高增益圆极化毫米波天线阵列设计  

Design of 2×2 broadband high gain circularly polarized millimeter wave antenna array for 5G communication

作　　者：刘继龙 刘君 魏建威 苏琳 LIU Jilong;LIU Jun;WEI Jianwei;SU Lin(Guoneng Xinshuo Railway Co.Ltd.,Ordos 010300,China;Xuejiawan Power Supply Branch of Inner Mongolia Power(Group)Co.,Ltd.,Ordos 017100,China)

机构地区：[1]国能新朔铁路供电公司,内蒙古鄂尔多斯010300 [2]内蒙古电力(集团)有限责任公司薛家湾供电分公司,内蒙古鄂尔多斯017100

出　　处：《无线通信技术》2024年第4期55-62,共8页Wireless Communication Technology

摘　　要：本文基于顺序旋转馈电网,设计了一款宽带高增益2×2圆极化毫米波阵列天线。首先,设计并仿真分析了一款使用印刷脊缝隙波导馈电的圆极化磁电偶极子天线。然后,利用印刷脊缝隙波导在毫米波频段的低损耗特性,设计了一种紧凑的圆环形顺序旋转馈电网。最后,将所设计单元和馈电网络组成阵列,设计并仿真分析了一款宽带高增益2×2圆极化毫米波阵列天线。仿真结果显示,该天线阵列结构的-10dB阻抗带宽为30.3%(24.1 GHz~32.6GHz),3dB轴比带宽为46.7%(22.9 GHz~36.0 GHz),阵列在整个工作频段上都具有稳定的辐射方向图,并在主射方向上的交叉极化电平低于-15 dB。This paper presents the design of a wideband and high-gain 2×2 circularly polarized millimeter-wave array antenna based on a sequential rotation feeding network.Firstly,a circularly polarized magneto-electric dipole antenna fed by a printed spine-slot waveguide is designed and analyzed by simulation.Then,a compact circular sequential rotation feeding network is designed using the low-loss characteristics of the printed spine-slot waveguide in the millimeter-wave frequency band.Finally,the designed unit and feeding network are combined to form an array,and a wideband and high-gain 2×2 circularly polarized millimeter-wave array antenna is designed and analyzed by simulation.The simulation results show that the-10 dB impedance bandwidth of the antenna array structure is 30.3%(24.1GHz-32.6 GHz),and the 3 dB axial ratio bandwidth is46.7%(22.9GHz-36.0 GHz).The array has a stable radiation pattern over the entire operating frequency band,and the cross-polarization level in the main radiation direction is less than-15 dB.

关 键 词：印刷脊缝隙波导 宽带 毫米波 顺序旋转馈电网 

分 类 号：TP828[自动化与计算机技术—检测技术与自动化装置]