摘要
阐述了一种256单元低副瓣阵列天线并馈网路的设计优化方法,该方法以幅度误差均方根最小为优化目标,代替优化阵列天线辐射特性。采用子阵台阶等比功率分布的方式,改善了在降低并馈网络设计难度中采用均匀子阵划分带来的天线副瓣电平恶化,同时最大限度地减少了并馈网络中使用的功分器种类,将256端口并馈功分网络所使用到的功分器种类降低到18种,通过仿真和天线实测数据证明了该方法的有效性。
This paper presents a design optimization method of 256-element low-sidelobe array antenna parallel-feed network.The optimization goal of this method is to take the minimum amplitude error root mean square instead of optimizing the radiation characteristics of array antenna.By adopting a sub-array step equal ratio power distribution approach,this paper improves the deterioration of antenna sidelobe level caused by uniform sub-array division in reducing the design difficulty of parallel-feed network,meanwhile minimizes the types of power dividers used in the parallel-feed network as possible,reduces the types of power dividers used by 256-port parallel-feed power divider network to 18 types.The effectiveness of this method is verified through simulation and the actual measurement data of the antenna.
作者
王哲夫
徐剑雨
WANG Zhefu;XU Jianyu(Unit 92941 of PLA,Huludao 125000,China)
出处
《舰船电子对抗》
2025年第6期91-95,共5页
Shipboard Electronic Countermeasure
关键词
并馈网络
低副瓣
子阵台阶等比功率分布
parallel-feed network
low sidelobe
step equal ratio power distribution of sub-array
