宽带宽波束端射印刷振子天线  

End-fire Printed Dipole Antenna with Broadband and Wave Beam Width

作　　者：周小林 郭敏[2,3] 

机构地区：[1]上海无线电设备研究所,上海200090 [2]上海大学通信与信息工程学院,上海200072 [3]上海市航空航天器电磁环境效应重点实验室,上海200438

出　　处：《制导与引信》2012年第4期49-52,共4页Guidance & Fuze

摘　　要：介绍了一种新型宽带宽波束折角振子天线,微带振子的两臂分别印刷在介质板的正反两面,该结构实现了从不平衡微带线到振子两臂的平衡馈电。调节振子臂的折角角度,获得了较宽的波束宽度,通过在接地板外侧刻蚀齿状扼流缝隙,抑制了后向辐射从而提高了天线的增益。对该天线的性能进行了仿真和实验研究,给出了驻波曲线和方向图,实验结果表明该天线阻抗带宽达到40.9%(VSWR≤2),覆盖了7.0GHz～10.6GHz的频率范围。基于上述优点,该天线在相控阵和通信系统中具有很好的应用前景。A novel wideband angled-dipole antenna is presented in order to achieve wide beamwidth , The antenna is built on both sides of a substrate and this allows a wideband feed from a single-ended microstrip line to the different dipole. With choosing the proper dipole arms angle, get the widest E-plane and H-plane beamwidth. The corrugations in the ground plane is also developed, which can enhance the gain of the antenna. The obtained design was fabricated and measured, showing impedance matching from 7.0 to 10.6GHz, the impedan- dce bandwidth（VSWR≤ 2） is 40.9%. The usefulness of the application areas are in phased array and high data-rate communication systems.

关 键 词：波束宽度 宽频带 天线罩 

分 类 号：TN821[电子电信—信息与通信工程]