含不规则子阵的阵列低副瓣特性研究  

Low sidelobe design of solid-state active phased array with irregular subarrays

作　　者：邢英[1] 李建新[1] 高铁[1] 

机构地区：[1]中国电子科技集团第十四研究所,天线与微波技术国防科技重点实验室,江苏南京210013

出　　处：《电波科学学报》2008年第2期321-324,339,共5页Chinese Journal of Radio Science

摘　　要：对含不规则子阵固态有源相控阵进行了多阶振幅量化,并对其低副瓣特性进行了研究。研究结果表明,利用较少量化台阶数,多阶振幅量化阵可实现较低的副瓣电平。该方法有利于减少组件品种和设计成本,适于工程应用。给出设计实例,验证了不规则子阵多阶振幅量化的正确性。最后,分析了随机幅相误差和单元(或T/R组件)失效对峰值副瓣电平的影响。For a solid-state active phased array with irregular subarrays, a scheme of multi-step amplitude quantization for realizing low sidelobe is presented in this paper. It is shown that the lower sidelobe level of multi-step amplitude quantized array should be achieved by using the fewer number of quantized steps. The valida- ty of the method is set out from an example of designed antenna array. Lastly, sidelobe degradation due to random amplitude and phase errors and element （or T/ R module） failure is investigated.

关 键 词：不规则子阵 多阶振幅量化 低副瓣 口径分布 幅相误差 

分 类 号：TN821[电子电信—信息与通信工程]