广东工业大学学报 ›› 2011, Vol. 28 ›› Issue (2): 43-46.

• 综合研究 • 上一篇    下一篇

GPS双频圆极化微带天线的设计

  

  1. 广东工业大学 物理与光电工程学院,广东 广州 510006
  • 出版日期:2011-06-25 发布日期:2011-06-25
  • 作者简介:汪雪刚(1986-),男,硕士研究生,主要研究方向为天线与微波技术..
  • 基金资助:

    2009广东省重大科技专项基金资助项目(2009A080207006)

The Design of Dual-band Circularly Polarized Patch Antennas for GPS 

  1. Faculty of Physics and Optoelectronic Engineering,Guangdong University of Technology,Guangzhou 510006,China
  • Online:2011-06-25 Published:2011-06-25

摘要: 设计了一种新型测量型GPS微带天线.这种天线采用双层贴片结构的形式,上下两层贴片均采用了均匀分布的四馈点馈电方案,在要求的带宽内满足双频(L1/L2) 圆极化特性的同时实现了小型化.采用对天线贴片切角和添加短截线的综合方法,有效地提高了天线的辐射效率.利用HFSS软件对天线模拟仿真与优化,并进行实物加工.模拟结果表明,在所设计的带宽内天线的各项特性均符合设计要求,且测试结果与仿真结果吻合良好,满足实际测量需求.

关键词: 微带天线;双频;圆极化;四馈点

Abstract: It presents the design of a dualband righthand circularly polarized microstrip antenna for GPS. The antenna has two stacked patches,each patch fed by four orthotropic ports on the patch plane. The fourfeed network is designed to achieve dualband righthand circular polarization, the antenna being small. The integrated approach of cutting the antenna patch corners and adding stubs effectively improves the efficiency of the antenna radiation. HFSS was used to modulate and simulate the antenna, and a physical model was tested. The experimental results show that the simulation results and the testing results are in agreement, and that the antenna meets the application requirements.

Key words: Microstrip antenna;Dual-band;Circularly polarized; Multi-feed

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