摘要
导航系统中,天线相位中心稳定性是高精确度导航定位的关键,为了达到这一技术要求,介绍了一种相位中心稳定度较高的层叠双频段圆极化导航天线。天线采用双层空气腔耦合天线结构,两馈电点馈电,可获得较宽的频带宽度和较高的相位中心稳定度。仿真和测量结果表明天线的相位中心稳定度小于1.72 mm,设计实用、可行。
The stability of antenna phase center is important for navigating and locating precisely innavigation system. To meet the technical requirements, a circularly polarized navigation antenna which isused in two frequency bands with high stability of phase center is designed. By using the structure ofdouble air-box coupling antenna and feeding by two feed points,a wide frequency band and high phasecenter stability can be obtained. Both of the simulated results and the measured results show that thestability of phase center is less than 1.72 mm. The antenna is applicable and feasible.
作者
周云林
ZHOU Yunlin(No.20 Institute, China Electronics Technology Group Corporation,Xi’an Shaanxi 710068,China)
出处
《太赫兹科学与电子信息学报》
2016年第4期596-598,共3页
Journal of Terahertz Science and Electronic Information Technology
关键词
相位中心稳定度
层叠
双频段
圆极化
导航天线
phase center stability
stack
dual-band
circularly polarized
navigation antenna
