相控阵天线的设计与FDTD分析

相控阵天线的设计与FDTD分析

内容简介：基于工作频率在1.79 GHz的微带天线,首先研究了移相器的设计方法,然后利用两种不同方法实现的移相器,分别设计出了相控阵天线。通过FDTD进行建模和仿真实验,计算了相控阵天线在不同扫描角的远场辐射方向图,分析了实验误差,得出了结论,所设计的相控阵天线结构简约,主瓣尖锐,最大扫描角大于45°。

Abstract：Based on a microstrip antenna that working on 1.79 GHz,this paper firstly presents the design technique for phase shifter,and then different phased array antennas is designed by two kinds of phase shifter.Using FDTD to model and simulate it,the far field radiation patterns of arrays is calculated,and then the deviation between experiment and theory is analyzed.The phased array antennas are designed by single structure with narrow main lobe,which maximum scan angle is larger than 45°.

作者：汪涛, 易茂祥, 毛剑波,

关键词：相控阵天线, 移相器, 直线阵, 时域有限差分法, 辐射方向图,