基于通道误差补偿的宽带相控阵天线波束控制方法  

Beam Control Method for Broadband Phased Array Antenna Based on Channel Error Compensation

作　　者：葛枫 刘爱冬 GE Feng;LIU Aidong(Jianghuai Frontier Technology Collaborative Innovation Center,Hefei Anhui 230093,China;China Academy of Space Technology,Beijing 100094,China)

机构地区：[1]江淮前沿技术协同创新中心,安徽合肥230093 [2]中国空间技术研究院,北京100094

出　　处：《通信技术》2025年第1期26-30,共5页Communications Technology

摘　　要：由于宽带相控阵天线波束指向易偏离,导致单元波束主瓣频率较高,因此基于通道误差补偿设计了宽带相控阵天线波束控制方法。首先设置最佳阵列布局,对每个通道的相位和幅度进行校准修正,进行通道间的差异补偿;其次针对通道误差进行精确补偿确定波束指向,建立宽带相控阵天线波束控制模型,优化波束的形状和指向,实时调整阵元的激励幅度和相位;最后引入子阵级延迟,实现宽带相控阵天线的波束控制。实验结果表明,基于通道误差补偿的宽带相控阵天线波束控制方法得到的单元波束主瓣频率均高于对比方法,最高为5.78 GHz。因此,所提方法在波束主瓣频率控制方面表现更优,具有更高的波束指向精度和稳定性。Due to the easy deviation of broadband phased array antenna beam direction,the main lobe frequency of the unit beam is relatively high.Therefore,this paper designs a broadband phased array antenna beam control method based on channel error compensation.First,the paper sets up the optimal array layout to calibrate and correct the phase and amplitude for each channel to compensate for differences between channels.Then,it accurately compensates for channel errors to determine the beam direction,establishes a broadband phased array antenna beam control model,optimizes beam shape and direction,and adjusts the excitation amplitude and phase of array elements in real time.Finally,it introduces subarray level delay and achieves beam control of broadband phased array antennas.Experimental results indicate that the broadband phased array antenna beam control method based on channel error compensation obtains a higher main lobe frequency of the unit beam than the comparative method,with the highest being 5.78GHz.As a result,the designed method performs better in controlling the main lobe frequency of the beam,with higher beam direction accuracy and stability.

关 键 词：通道误差补偿 宽带相控阵 天线波束控制 波束指向 激励相位 

分 类 号：TN82[电子电信—信息与通信工程]