低旁瓣反射面天线设计  

Low Side Lobe Reflector Antenna Design

作　　者：刘胜文[1,2] 王超 LIU Shengwen;WANG Chao(The 54 th Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China;Hebei Key Laboratory of Radio Astronomy Technology,Shijiazhuang 050081,China)

机构地区：[1]中国电子科技集团公司第54研究所,石家庄050081 [2]河北省射电天文技术重点实验室,石家庄050081

出　　处：《计算机测量与控制》2023年第6期246-251,共6页Computer Measurement &Control

摘　　要：反射面天线设计在追求高增益的同时,往往也要求天线具有较低的旁瓣水平,以防止对其他系统产生干扰;通过分析不同天线形式反射面天线旁瓣的影响因素,研究了低旁瓣反射面天线设计时参数选取原则和方法,总结了低旁瓣反射面天线的设计方法;给出了一个实际工程应用的超低旁瓣双偏置反射面天线的设计实例和性能仿真计算,天线仿真的口径效率优于59%,旁瓣优于-40 dB,验证了分析与设计方法的正确性,该方法可用于指导低旁瓣反射面天线的工程设计。In the design of reflector antenna,while pursuing high gain of antennas,it is often required to have a low side lobe to prevent the interference to other systems.By analyzing the influence factors of the antenna side lobe of different antenna forms,the parameter selection principle and method in a low side lobe reflector antenna design are studied,and the design method of the low side lobe reflector antenna is summarized,which accomplishes the design example and performance simulation calculation of an ultra-low side lobe dual-offset reflector antenna for practical engineering applications.This simulation results show that the aperture efficiency of the antenna is better than 59%,and the side lobe is better than-40 dB,which verifies the correctness of the analysis and design method.The method can be used to guide the engineering design of the low side lobe reflector antenna.

关 键 词：低旁瓣 反射面天线 焦径比 口面场分布 双偏置反射面天线 

分 类 号：TN82[电子电信—信息与通信工程]