论文部分内容阅读
设计了一种具有铲形终端微带馈电椭圆缝隙及枝节调节和接地板阶梯凹槽的超宽带(UWB)天线。利用仿真软件HFSS分析了铲形半椭圆、椭圆缝隙及枝节、半圆切槽、接地板与辐射体间隙、接地板三角形切角和阶梯凹槽等结构对天线性能的影响,对天线结构参数进行了优化。实测天线的阻抗带宽为2.8~12.0 GHz,在3.1~10.6GHz范围内基本呈全向性,并且具有较稳定的增益,约为2.5~4.6 d Bi。该天线可广泛用于无线通信领域。
An ultra-wideband (UWB) antenna with elliptical slot microstrip feeding of shovel-shaped terminal and staged groove of stub adjustment and grounding plate was designed. The influence of structure such as semi-elliptical circle, elliptical slit and branch, semicircle slot, ground plate and radiator gap, triangular cut angle of ground plate and stepped groove on the performance of antenna was analyzed by simulation software HFSS. optimization. The measured impedance bandwidth of the antenna is 2.8 ~ 12.0 GHz, and it is basically omnidirectional in the range of 3.1 ~ 10.6 GHz with a stable gain of about 2.5 ~ 4.6 d Bi. The antenna can be widely used in the field of wireless communications.