应用于气象监测网络无线传输的阵列天线  

Array Antenna Applied to Wireless Transmission of Weather Monitoring Network

作　　者：苗祥斌 王伟健 姚雷 王鹏[1] MIAO Xiang-bin;WANG Wei-jian;YAO Lei;WANG Peng(Lianyungang Meteorological Bureau,Lianyungang Jiangsu 222000,China)

机构地区：[1]连云港市气象局,江苏连云港222000

出　　处：《计算机仿真》2022年第10期255-258,461,共5页Computer Simulation

基　　金：江苏省气象局青年基金(KQ202013)。

摘　　要：提出了一款工作于2.45GHz的多波束双模阵列天线,可用于现代化气象监测网络无线传输系统。天线阵列由八个圆弧形的平面偶极子和一个环形反射器组成。通过功率传输效率最大化方法对多个驱动单元的激励进行优化,从而得到阵列的最优增益。设计实现了全向辐射模式和多波束模式之间的双模切换工作。当天线无法确定用户的位置时,天线将以全向模式运行,以扩大覆盖范围。确认用户位置后,天线将切换到定向多波束模式以将波束引导至用户,从而减少功率的浪费。阵列天线工作在多波束的模式下能够实现了同时在水平面φ=0°,90°,180°,270°四个方向产生四个相同的波束,并且每个方向上的增益都可以调控。In this paper, a multi-beam dual-mode array antenna working at 2.45 GHz is proposed, which can be used in a modern weather monitoring network wireless transmission system. The antenna array was composed of eight circular arc-shaped planar dipoles and a circular reflector. Through the power transmission efficiency maximization method, the optimal distributed excitation required by the antenna array was optimized, so as to obtain the optimal gain of the array. This design realized dual-mode switching between omnidirectional radiation mode and multi-beam mode. When the antenna cannot determine the location of the user, the antenna operates in an omni-directional mode to expand the coverage. After confirming the user’s location, the antenna switches to the directional multi-beam mode to guide the beam to the user, thereby reducing power waste. Working in multi-beam mode, the array antenna can generate four identical beams in four directions on the horizontal plane φ=0°,90°,180°,and 270° at the same time, and the gain in each direction can be adjusted.

关 键 词：多波束 增益可调控 阵列天线 气象监测 

分 类 号：TN82[电子电信—信息与通信工程]