基于电抗加载的单通道五元多波束扫描天线阵设计方法研究  

Design Method of Reactance Loading Based Single Channel Five-Element Multi-beam Scanning Antenna Array

作　　者：李戈阳[1] 李瑞[2] 李维林[1] 

机构地区：[1]中国舰船研究设计中心,湖北武汉430064 [2]海军装备部,北京100071

出　　处：《中国舰船研究》2011年第5期89-93,共5页Chinese Journal of Ship Research

基　　金："十一五"预研基金资助项目

摘　　要：为解决多波束扫描天线阵中多接收通道的一致性问题,并简化多波束形成所需的复杂波束形成网络,采用电抗加载方法设计了仅需一个输出通道的五元多波束扫描天线阵。仿真结果表明,该天线阵采用MUSIC算法,能实现最多4个信号到达方向(DOA)的较精确估计。另外,对信噪比、采样点数、信号角间距对信号到达方向估计效果的影响进行了定量分析。该天线阵的设计方法与计算结果对电抗加载高频地波雷达(HFSWR)天线阵的优化设计与工程应用具有一定的指导意义。To achieve multi-channel consistent receiving for multi-beam scanning antenna array,as well as to simplify its complex beam forming network,reactance-loaded five-element multi-beam scanning antenna array was designed,more importantly,in which only one output channel was required.Simulation results show that DOA estimation of up to four signals can be precisely performed by adopting MUSIC.Moreover,the impacts of signal-noise ratio,sample rate and angle space between signals on performance of DOA estimation were analyzed quantitatively.The design and simulation results of this antenna array are of certain significance to the optimization design and application of the reactance loaded HFSWR antenna arrays.

关 键 词：电抗加载 波束形成 MUSIC 到达方向 高频地波雷达 

分 类 号：U665.26[交通运输工程—船舶及航道工程]