电波科学学报2018，Vol.33Issue(1)：93-104,12.DOI:10.13443/j.cjors.2017042501
双圈圆阵方向特性分析
Direction characteristics for dual circular array
摘要
Abstract
In this paper, the directional characteristics of two different placed dual circular arrays are studied, including the direction of radiation pattern, the beam width of the main lobe and the sidelobe level. Firstly, the array model of the dual circular array is established, the formula of the radiation pattern is deduced and extended to multi-circle circular array, and theoretical analysis is carried out. Secondly, a large number of simulation experiments are carried out by MATLAB software to analyze the relationship among the half-power beamwidth of the main lobe, the sidelobe peak level, the scanning angle and the number of array elements, as well as the relationship between the radius of the inner and outer elements. Finally, the theoretical analysis and simulation results are comprehensively sorted out. The conclusions are that the lowest level of the sidelobe exists when the radius ratio of inner and outer array is about 0. 5, and the beamwidth increases with the number of inner circular array elements but decreases with the number of outer circular array elements. The experimental results can provide theoretical reference for the reasonable setting of the number of elements and the location of the array elements. 关键词
双圈圆阵/方向图/波束宽度/副瓣电平/扫描角Key words
dual circular array/radiation pattern/beamwidth/sidelobe level/sweep angle分类
信息技术与安全科学引用本文复制引用
张佳佳,陈辉,季正燕,陆晓飞..双圈圆阵方向特性分析[J].电波科学学报,2018,33(1):93-104,12.
