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.
出处
《微波学报》
CSCD
北大核心
2010年第5期18-22,共5页
Journal of Microwaves
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
Mixed genetic algorithm
Multi-step mixed feed
Density weighed
Multi-step amplitude quantization
Low side lobe
