摘要
研究了一种表面开十字形辐射槽的新型贴片天线,并与同频率的一般贴片天线做性能对比,研究结果表明,此类新型贴片天线具有频带宽和形状小的突出优点.将其应用于一种精确测量型的GNSS双频天线设计,充分展宽了天线的阻抗带宽和轴比带宽,设计的天线可以接收全频段GNSS导航系统信号.采用HFSS软件仿真的结果显示,它的阻抗带宽、轴比带宽、增益和相位中心稳定性等性能参数都较好,并且表现出良好的圆极化性能和小型化效果,尤其适合于手持式精确导航终端,具有良好的应用前景.
A novel microstrip patch antenna with a cross-slot cut in the patch is proposed and studied.The research results show that,compared with general microstrip antennas of satellite navigation,the new antenna with much wider band and smaller size has outstanding advantages,.The new patch antenna with a cross-slot cut in the patch was applied to the design of dual band navigation antenna for high-precision GNSS applications,and the impedance bandwidth and axial ratio bandwidth were effectively enhanced.The designed antenna had enough bandwidth to cover the all band of Global Navigation Satellite System （GNSS）.Good performance of impedance,axial ratio,gain and phase center stability were obtained by simulation of HFSS.Simulation results show that the antenna has good circular polarization performance,and it is compact as well,so it is especially suitable for handheld high-precision navigation terminals and is promising in application.
出处
《广东工业大学学报》
CAS
2014年第2期90-94,共5页
Journal of Guangdong University of Technology
基金
广东省中山市产学研结合项目(2010cxy001)
关键词
贴片天线
十字形槽
带宽
小型化
圆极化
patch antenna
cross slot
bandwidth
compact
circular polarization
