摘要
本文给出了一种俯仰面大角度空域余割平方波束赋形的阵列天线。为满足给定的波束要求,利用遗传优化算法,对11个印制天线单元进行幅度、相位优化设计。同时,基于带状线结构的馈电网络结合天线单元进行一体化设计,进一步实现阵列天线的小型化。通过仿真软件HFSS计算,其最大增益达到13d Bi以上,20dB覆盖空域角度达到70°,且具有-25dB的副瓣电平。测试结果与仿真结果基本吻合,证明了该设计方法的有效性。
The paper presents the design of a large angle cosecant-squared shaped elevation beam array antenna. In order to form a given antenna pattern, an improved genetic algorithm(GA) is proposed, which is applied to optimize the amplitudes and phases of the currents of the 11 radiating elements. At the same time, the feed network based on the strip-line structure is integrated with the antenna element, and the miniaturization of the array antenna is further realized. The simulation software HFSS shows that the maximum gain is above 13 dBi, the 20 dB covered elevation space angle is 70° and the side lobe level of-25 dB is reached. The measurement results are basically agreed with the simulation results, which prove the effectiveness of the design method.
作者
李运志
金秀梅
侯艳茹
孙浩
董青
LI Yun-zhi;JIN Xiu-mei;HOU Yan-ru;SUN Hao;DONG Qing;Anhui Sun-create(Anhui Sun-create,Hefei 230088,China)
出处
《微波学报》
CSCD
北大核心
2018年第A01期239-241,共3页
Journal of Microwaves
