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| 一种星载高相位中心稳定度双频GPS天线 | |
| 作者姓名： | 丁克乾 柯炳清 |
| 作者单位： | 北京遥测技术研究所 北京100076 |
| 摘 要： | 介绍一种用于星载的变形十字交叉振子圆极化天线,通过对普通十字交叉振子天线进行改进,展宽了天线的工作带宽,使该天线能同时工作在GPS的L1和L2两个频率上。该天线结构简单,除了支撑材料外,整个天线由金属构成,易于满足星载的环境要求。该天线具有很高的相位中心稳定度,在要求的波束范围内天线的相位中心稳定度小于2mm,达到了国外同类产品的水平。仿真及实测结果表明,设计实用、可行。文中还研究了天线相位中心的测试方法和数据处理方法,并应用到实际测试中。 |
| 关 键 词： | 十字交叉振子天线 GPS双频天线 相位中心 |
A Dual Band GPS Antenna with High Stability of Phase Center Used on Satellites |
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| Authors: | Ding Keqian Ke Bingqing |
| Abstract: | A transformative cross dipole circular polarized antenna is introduced.The conventional cross dipole antenna is ameliorated to widen the operating band so that the antenna can operate on both L1 and L2 bands of GPS.The antenna mainly consists of metal material which makes it easily satisfy the space environment requirement.The stability of phase center is very high and less than 2mm in the main lobe.The simulation and measured results are given to show the practicability and feasibility of the design.The methods of the phase center measuring and data processing are also studied in this paper. |
| Keywords: | Cross dipole antenna Dual band GPS antenna Phase center |
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