摘要
介绍了一种利用单个馈电点实现双频GPS(Global Position System)天线的小型化方案,与常规天线相比,结构紧凑,厚度小,易集成。利用电磁仿真软件HFSS进行3D建模仿真分析,给出了回波损耗曲线、轴比曲线和辐射方向图。天线在两个工作频点分别获得了30 M和20 M阻抗带宽,且均具有良好的方向性。
Presents a miniaturization scheme using a probe-fed to realize dual-frequency GPS（Global Position System） antenna compact,compared with the conventional antenna, it possesses advantages of compact structure,smaller thickness and more easy to integrate.Describes the implementation of 3D modeling and electromagnetic（EM） field simulation analysis by utilizing software HFSS.The figures that return loss,axial ratio and far field pattern of the antenna are given.The results show that the impedance bandwidth of 30 M and 20 M are obtained at the two working frequencies and have received a good direction.
出处
《制导与引信》
2010年第3期45-48,共4页
Guidance & Fuze
关键词
双频
圆极化
小型化
dual-frequency
circular polarization
miniaturization
