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.
出处
《电波科学学报》
EI
CSCD
北大核心
2008年第2期321-324,339,共5页
Chinese Journal of Radio Science
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
irregular subarray
multi-step amplitude quantization
low sidelobe
aperture distribution
amplitude and phase error
