摘要
为减小波导窄边裂缝天线缝隙间互耦对天线性能的影响,实现低副瓣的设计,提出了一种倾角波动分布的设计方法.天线电流分布选用泰勒分布,利用HFSS软件确定缝隙倾角初值,在此基础上得到波动分布的倾斜角度,并通过遗传算法对缝隙倾角进行优化.使用Matlab与HFSS软件联合仿真,省略了建模、设置参数等大量操作,提高了设计效率.基于此,设计了一款长度为1.2m的X波段波导窄边裂缝天线,仿真发现副瓣电平比传统设计方法低2.17dB,加工了天线实物并进行了测试,天线实测增益和副瓣电平分别为20.9dBi和-28.7dB,验证了方法的有效性.
To decrease the influence of mutual coupling between the slots of waveguide narrow wall slot antenna and implement the design of low sidelobe level,a design method of the wave distribution of inclined angles is proposed.The Taylor distribution is used as the current distribution of the antenna,the initial inclined angles are obtained by the HFSS,based on which the wave distribution of inclined angles is proposed,and the inclined angles are optimized by genetic algorithm.The co-simulation of Matlab and HFSS is adopted,which omits a large number of operations of creating models and setting up parameters,thus the efficiency of designing is clearly improved.With the method,a 1.2 meters long waveguide narrow wall slot antenna operating at X band is designed.The simulated result indicates that the sidelobe level is2.17 dB lower than that obtained by the traditional design method.Finally,the antenna is manufactured and tested,and the tested gain and sidelobe level of the antenna are 20.9 dBi and-28.7 dB respectively,and the effectiveness of which is verified.
作者
邵特
房少军
傅世强
王钟葆
SHAO Te;FANG Shaojun;FU Shiqiang;WANG Zhongbao(School of Information Science and Technology, Dalian Maritime University, Dalian Liaoning 116026, China)
出处
《电波科学学报》
EI
CSCD
北大核心
2018年第1期21-26,共6页
Chinese Journal of Radio Science
基金
国家自然科学基金(No.61401056
No.61571075)
辽宁省博士启动基金(No.20141103)
中央高校基本科研业务费专项资金(No.3132015212)
关键词
互耦
倾角波动分布
遗传算法
联合仿真
mutual coupling
wave distribution of inclined angles
genetic algorithm
co-simulation
