基于新型缝隙单元的微带全向阵列天线设计  

Design of omnidirectional microstrip array antenna based on novel slot unit

作　　者：邢韶华 曹源 刘宇峰 高扬 Xing Shaohua;Cao Yuan;Liu Yufeng;Gao Yang(School of Physics and Electronic Engineering,Shanxi University,,Taiyuan 030006,China;China-Belarus Belt and Road Joint Laboratory on Electromagnetic Environment Effect,Taiyuan 030006,China)

机构地区：[1]山西大学物理电子工程学院,太原030006 [2]中国-白俄罗斯电磁环境效应“一带一路”联合实验室,太原030006

出　　处：《电子测量技术》2023年第12期15-19,共5页Electronic Measurement Technology

基　　金：中国-白俄罗斯电磁环境效应“一带一路”联合实验室开放基金(ZBKF2022020102)项目资助。

摘　　要：提出了一种新型串行馈电的全向缝隙阵列天线,在带状线两侧背靠背刻蚀8对圆环缝隙,在缝隙内部加载一个Y形缝隙,延长Y形缝隙的长,并在顶部刻蚀横槽,形成最终的Y-T型缝隙结构,用以提升单元辐射性能。采用遗传算法(GA)对阵列进一步优化,使其工作带宽进一步扩宽,增益有所提升。根据设计结果加工制作了天线样品,实际测试表明,天线的|S_(11)|<-10 dB阻抗带宽为7.93%(5.56~6.02 GHz),带宽内峰值增益均高于8.99 dBi。工作在5.8 GHz处,E面旁瓣水平低于-10.11 dB,峰值增益为9.43 dBi,且有稳定的全向辐射性能。A new serial-fed omnidirectional slot array antenna is proposed.Eight annular slots are etched back to back on both sides of the stripline,and a Y-shaped slot is loaded inside the slot to extend the length of the Y-shaped slot.The top is etched with horizontal grooves to form the final Y-T slot structure to improve the unit radiation performance.Genetic algorithm(GA) is used to further optimize the array so that its working bandwidth is further widened and the gain is improved.According to the design results,the antenna samples are fabricated.The actual measurement shows that the impedance bandwidth |S_(11)|-10 dB of the antenna is 7.93%(5.56~6.02 GHz),and the peak gain in the bandwidth is higher than 8.99 dBi.Operating at 5.8 GHz,the E-plane sidelobe level is lower than-10.11 dB,the peak gain is 9.43 dBi,and it has stable omnidirectional radiation performance.

关 键 词：全向天线 带状线 缝隙阵列 遗传算法 串行馈电 

分 类 号：TN823.27[电子电信—信息与通信工程]