新型相控阵天线多阶混合馈电技术  

Novel Phased Array Antenna Multi-step Mixed Feed Technique

作　　者：徐慧[1,2] 朱瑞平[1,2] 

机构地区：[1]南京电子技术研究所,南京210013 [2]天线与微波技术国防科技重点实验室,南京210013

出　　处：《微波学报》2010年第5期18-22,共5页Journal of Microwaves

摘　　要：提出了一种基于混合遗传算法的新型相控阵天线多阶混合馈电技术,描述了在有限TR组件数量和品种的情况下,可实现相控阵天线低副瓣的技术原理和仿真实例。仿真实例表明,多阶混合馈电阵比密度加权阵和多阶振幅量化阵具有更优的技术指标,且参数调节更具有灵活性,可大大减少相控阵天线成本。且多阶振幅量化阵仅是多阶混合馈电阵的一个特例。此外,对于同时存在随机幅相误差和单元(或TR组件)失效而引起的峰值副瓣电平恶化情况也进行了统计分析。This paper proposes a novel phased array multi-step mixed feed technique mixed genetic algorithm.First,low side lobe technique theory of the phase array antenna and simulated examples are described in the case of finite TR number and TR variety.In comparison with the density weighed array and multi-step amplitude quantization array,the technical key of multi-step mixed feed array is more excellent and adjusting parameter is more flexible.So this technique can mostly reduce the radar cost.Moreover,multi-step amplitude quantization array is only the special example of the the multi-step mixed feed array.In addition,side lobe degradation due to random amplitude and phase errors and element（or TR module）failure is analyzed and investigated too.

关 键 词：混合遗传算法 多阶混合馈电 密度加权 多阶振幅量化 低副瓣 

分 类 号：TN821.8[电子电信—信息与通信工程]