光控波束网络对相控阵天线波束指向影响分析  

InfluenceAnalysis of Optical Controlled Beamforming Network on Beam Direction of Phased Array Antennas

作　　者：张程慧 杨杰[1] 杨威 ZHANG Chenghui;YANG Jie;YANG Wei(Beijing Institute of Radio Measurement,Beijing 100854)

机构地区：[1]北京无线电测量研究所,北京100854

出　　处：《火控雷达技术》2025年第1期61-66,共6页Fire Control Radar Technology

摘　　要：作为下一代相控阵雷达和智能天线的核心技术,光控波束形成网络利用微波光子学手段控制天线单元间的延时差,使得微波辐射源能够在远场特定方向实现定向发射或接收。相较于传统微波波束形成网络,能够实现无偏斜波束指向,同时具有体积小、重量轻、抗电磁干扰等优势。本文围绕光控波束形成网络,介绍了其工作原理和其中的关键部分--真时延技术的实现方案及发展现状,讨论了光控波束形成网络的幅相误差来源及其对波束的影响。最后,分析了当前光控波束形成网络的局限和未来发展趋势。As the core technology of the next-generation phased array radar and smart antenna,the optical controlled beamformer uses microwave photonic technology to control the true time delay difference between the antenna units,so that the microwave radiation source realizes directional transmitting and receiving in the far field.Compared with the traditional microwave beam forming network,it can realize the deflection-free beam pointing with the advantages of small size,light weight,anti-electromagnetic interference.In this paper,the working principle and the key part-the scheme of true time delay were introduce for the optical controlled beamformer.In addition,the effects of the amplitude and phase errors of the optical-controlled beamformer were also discussed.Finally,the limitations and future development trends were analyzed.

关 键 词：光学真时延 波束形成网络 相控阵天线 微波光子 

分 类 号：TN95[电子电信—信号与信息处理] TN29[电子电信—信息与通信工程]