超宽带圆片单极天线的改进设计

超宽带圆片单极天线的改进设计

内容简介：基于超宽带圆片单极天线，根据实际应用需求，提出了多环单极天线、波浪边缘圆片单板天线和电阻加载圆片单极天线等改进形式，并用仿真法讨论了不同主要结构参数对天线性能的影响，给出了天线的实物模型和实测性能。结果表明：多环单极天线能在保证性能的前提下提高天线的抗风能力；波浪边缘圆片单极天线有效抑制了高端频率，在民用超宽带频段（3．1～10．6GHz）保持了良好的阻抗特性；电阻加载圆片单极天线可实现天线的小型化。这些天线超宽带性能良好，分别可实现低风载、高频抑制、小型化等不同特性。

Abstract：The improved structures with multiple-ring, wavy-edge and resistive loaded circular disc for the ultra- wideband circular disc monopole antenna were put forward according to the application requirements in this paper. The effect of the various main parameters on the performance of the antenna was discussed through simulation. The photo of the improved antenna and measured performance were given out. The results showed that the multiple-ring structure could improve the wind resistance capability while maintaining the basic characteristics of the antennas, the monopole antenna with wavy-edge which could reject the higher frequency covered a frequency range from 3.1 10.6 GHz which was just the civil ultra-wideband communication range, and the resistive loaded circular disc antenna realized miniaturization by changing the surface current distribution. It was verified that the characteristic of the traditional monopole antenna was effective improved by the novel antennas which could realize the low wind load, high frequency suppression and miniaturization.

作者：钟玲玲, 李永翔, 李鹏,

关键词：超宽带天线, 圆片单极天线, 低风载, 高频抑制, 小型化,