摘要
GPS系统自1994部署完毕后,迅速在导航、测绘及授时等多个领域得到广泛应用。GPS应用领域的快速壮大,有力地推动了天线技术的发展。在介绍GPS工作特性及其对接收天线要求的基础上,着重阐述了微带天线和四臂螺旋天线两种主要的GPS天线,并针对当前GPS接收设备发展趋势,展望了GPS天线在小型化、低成本、抗干扰、多频段等方面的发展方向和有关难题。
Global position system (GPS) is widely used in many field since it is finished in 1994. With the development of GPS and its antennas technology is continuous progress. Based on introduction of the signal characteristic of GPS satellite and system requirement of GPS antennas, the paper focus on analysis the factual shapes and technical characteristics of mierostrip antenna and quadrifilar helix antenna. In the end of this paper, aimed at the application requirement, the development trends and key techniques is pointed out.
出处
《无线通信技术》
2008年第4期34-39,共6页
Wireless Communication Technology
关键词
GPS
天线
微带天线
四臂螺旋天线
global positioning system
antenna
microstrip antenna
quadrifilar helix antenna