大型宽带相控阵天线子阵级延时器误差分析及补偿  

Analysis and Compensation Method of Real-time Delayers for Multi-layerd Subarray Application in Wideband Large Phased Array

作　　者：梁志伟[1,2] 林幼权 孙红兵[1,2] 程岩 汪智[1] LIANG Zhi-wei;LIN You-quan;SUN Hong-bin;CHENG Yan;WANG Zhi(The 14th Institute of China Electronics Technology Group Corporation,Nanjing 210039,China;Science and Technology on Antenna and Microwave Laboratory,Nanjing 210039,China)

机构地区：[1]中国电子科技集团公司第十四研究所,南京210039 [2]天线与微波技术重点实验室,南京210039

出　　处：《微波学报》2023年第3期30-36,共7页Journal of Microwaves

摘　　要：子阵级使用延时器是改善宽带相控阵天线波束性能常用的技术途径。在对延时器电性能误差特性分析的基础上,提出采用次级子阵延时器联合TR通道移相器和衰减器分级补偿天线系统内部射频链路的时延、幅度和相位误差的方法。通过采用两级子阵延时架构的一维大型天线阵列模型的仿真验证,表明该方法不仅可实现大带宽大扫描角大型相控阵天线的方向图高精度控制,同时降低了大时延量延时器的研制难度。The real-time delayer applied in subarray configuration is a common way to improve the performance of wideband phased array.Based on analysing the characteristic of different electronic errors in the real time delayer,a new compensation method for multi-layerd subarray in wideband large phased array antenna is proposed,by combining the secondary time delayer and TR module to modify the errors of time delay,amplitude and phase in RF circuit.Demonstrated by the simulation result of two layered scheme of real-time delayers in one dimensional phased array,it shows that this method can not only provide the excellent correcting of beam pointing for wide-band and wide-scan phased array antenna,but also sufficiently decrease the complexity of real-time delayers.

关 键 词：宽带相控阵天线 多级子阵 延时器 

分 类 号：TN821.8[电子电信—信息与通信工程]