电波科学学报2016，Vol.31Issue(6)：1132-1137,6.DOI:10.13443/j.cjors.2016010101
基于同心圆环的大间距子阵级阵列栅瓣抑制
Grating lobe suppression in large spacing arrays composed of subarrays based on concentric ring
摘要
Abstract
Increasing element spacing appropriately and using subarray-based arrays are favorable to reduce the production cost of phased arrays,however,the rarefied array has unexpected grating lobes.To solve the proplems,an array is designed with no grating lobe.The subarrays are rotated in plane,and are distributed in the concentric ring structure around the center of the array.The range of the ring radii are analyzed for ensuring that each subarray will not overlap.Computational simulation is carried out to optimize the number of the subarrays in each ring and the radii of the ring using an improved method of exhaustion.The results show that,taking 4 × 4 subarrays and 1 024 elements as example,the method provides suppression of peak side-lobe level of-17.46dB.关键词
栅瓣抑制/大间距/子阵旋转/同心圆环阵/稀疏阵Key words
grating lobe suppression/large spacing/subarray rotation/concentric ring arrays/sparse arrays分类
信息技术与安全科学引用本文复制引用
李志刚,王鹏毅..基于同心圆环的大间距子阵级阵列栅瓣抑制[J].电波科学学报,2016,31(6):1132-1137,6.基金项目
中国电子科技集团公司第五十四研究所发展基金(XX151060006) （XX151060006）
