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.
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.
出处
《广东工业大学学报》
CAS
2011年第2期43-46,共4页
Journal of Guangdong University of Technology
基金
2009广东省重大科技专项基金资助项目(2009A080207006)
关键词
微带天线
双频
圆极化
四馈点
Microstrip antenna
Dual-band
Circularly polarized
Multi-feed
