一种环焦天线的赋形设计  

A Shaped Design of a Low Sidelobe Ring Focus Antenna

作　　者：王雷 王珂[1] 高旭 Wang Lei;Wang Ke;Gao Xu(No.39 Research Institute of CETC,Xi'an,710065)

机构地区：[1]中国电子科技集团公司第39研究所,西安710065

出　　处：《测控与通信》2021年第1期31-36,共6页

摘　　要：针对目前卫星通信和测控等领域对天线低副瓣高增益的需求,对已有的标准主副面环焦天线进行赋形。对于特定主面口径场分布函数和馈源方向图函数,采用Matlab进行数值计算赋形。利用Grasp联合仿真,对主副面赋形前后的天线增益和副瓣电平进行了比较。仿真和现场实测结果表明,在天线增益基本保持不变的前提下,天线第一副瓣电平得到了明显降低。In response to the current demand for antennas with low sidelobe and high gain in satellite communications and measurement and control,the existing standard main and secondary loop focus antennas are shaped.For the specific main surface aperture field distribution function and feed pattern function,Matlab is used for numerical calculation and shaping.Using Grasp co-simulation,the antenna gain,and sidelobe level before and after the main and secondary surface are compared.Simulation and field measurement results show that the first side lobe level of the antenna has been significantly reduced under the premise that the antenna gain remain basically unchanged.

关 键 词：低副瓣 赋形 口径场分布函数 馈源方向图函数 

分 类 号：TN8[电子电信—信息与通信工程]