浅谈UHF串馈套筒天线设计方法

Design of UHF Series Fed Sleeve Antenna

本文在套筒单极子天线的基础上,对其馈电及结构进行变化,设计了一种UHF串馈套筒天线,并简要介绍了UHF串馈套筒天线的设计过程,利用仿真软件对其结构参数进行仿真分析,得出影响天线特性的参数规律,并通过组阵仿真得到较为理想的方向图,阐述了降低原料成本及提高电气指标的方法,在保证电气指标的前提下优化了天线结构。UHF串馈套筒天线VSWR≤1.2,优于国外同类天线VSWR≤1.4的指标。

Based on the sleeve monopole antennas, this paper introduce a kind of method to design UHF series fed sleeve antenna by transforming its feed and structure. And then it briel y introduces the design process of UHF series fed sleeve antenna. We obtain the variation of parameters which inl uence antenna performance by using simulation software for analyzing dif erent structure parameters. Also we get ideal radiation pattern by using matrix simulation. Finally, the paper expounds the method to reduce the cost of raw materials, improve the electrical parameters and optimize the structure of antenna on the premise to ensure electrical index. VSWR of UHF series fed sleeve antenna(≤1.2) is better than one of similar foreign antennas(VSWR≤1.4).