一种低面宽角覆盖组合天线  

Design of a Low-Profile and Wide-Angle Coverage combinatio Antenna

作　　者：张欢欢 樊鑫[1] 孔庆功 郭景丽[1] Zhang Huanhuan;Fan Xin;Kong Qinggong;Guo Jingli(Key Laboratory of Seience and Technology on Antenna and Microwaves,Xidian University,Xi'an,710071;ZTE Corporation,XI'an,710114)

机构地区：[1]西安电子科技大学天线与微波技术重点实验室,西安710017 [2]中兴通讯股份有限公司,西安710114

出　　处：《测控与通信》2024年第1期9-13,共5页

摘　　要：本文设计了1款宽角覆盖组合天线,天线选用四元定向天线和顶加载单极天线组成,四元定向天线和顶加载单极天线通过定向耦合器和威尔金森功分器组成的馈电网络激励。顶加载单极天线实现水平全向辐射,但是在天线正上方存在辐射零点;四元定向天线实现定向辐射,水平面增益较小。使用四元定向天线弥补顶加载单极天线的辐射零点,从而实现天线阵列上半空间辐射的性能。最终仿真结果表明,天线在2.55~2.9 GHz范围内驻波比小于2,天线在2.6~2.8GHz实现上半空间覆盖。天线的剖面为5 mm。In this paper,a wide-angle coverage combination antenna is designed.The antenna is composed of four directional antenna and top-loaded monopole antenna.The four directional antenna and top-loaded monopole antenna are excited by a feed network composed of directional coupler and Wilkinson power divider.The top-loaded monopole antenna achieves horizontal omni-directional radiation,while there is zero radiation above the antenna.The four-element directional antenna achieves directional radiation with low horizontal gain.The four-element directional antenna is used to compensate the zero of the top-loaded monopole antenna so as to realize the performance of the upper half space radiation of the antenna array.The final simulation results show that the antenna's standing wave ratio is less than 2 in the range of 2.55GHz-2.9GHz,and the antenna achieves upper half space coverage in the range of 2.6GHz-2.8GHz.The profile of antenna is 5mm.

关 键 词：顶加载单极子天线 四元定向天线 宽角覆盖馈电网络 

分 类 号：TN8[电子电信—信息与通信工程]