新型超宽带单极子缝隙天线设计与仿真

内容简介：提出了一种新型超宽带单极子缝隙天线，该天线包含一个类似于单极子天线的缝隙和叉状共面波导馈电结构，蚀刻在FR4-PCB板上，尺寸为26 mm×26 mm×1.4 mm。该天线采用HFSS13.0软件进行仿真，并对天线模型参数进行优化。结果表明：该天线具有良好的阻抗匹配和方向图特性，频带宽度为2.53~19.30 GHz（S 11≤-10 dB），相对带宽达到154%，满足超宽带天线要求。

Abstract：A new ultra-wideband (UWB) monopole-like slot antenna was designed. The proposed antenna comprised a monopole-like slot and a coplanar waveguide(CPW) fork-shaped feeding structure, which was etched onto an FR4 printed circuit board (PCB) with an overall size of 26 mm×26 mm×1.4 mm. The parameters of the antenna were simulated and optimized with HFSS 13.0. Results show that the antenna achieves good impedance matching and radiation performance over an operating bandwidth of 2.53-19.30 GHz (154%), S 11≤-10 dB. And it meets the requirements of the ultra-wideband antenna.

作者：王宁, 黄鲁,

关键词：天线, 超宽带, 单极子, 缝隙, 共面波导, 阻抗匹配,