Electrical alignment of antenna coordinate system in a planar near-field setup
Electrical alignment of antenna coordinate system in a planar near-field setup
复制标题
平面近场设置中天线坐标系的电气对准
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
S. Pivnenko
中科院分区：
文献类型：
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作者：
A. Mynster;J. M. Nielsen;S. Pivnenko
在本文中，一个简单而有效的电气对准程序称为翻转测试，并适用于检查和纠正两个错误的机械设置的平面近场系统：天线坐标系的z轴相对于扫描平面的误指向和扫描平面的中心点相对于天线坐标系的z轴的位移。对不同模型的赫兹振子天线进行了误差及其校正算法的仿真，并选择了最佳算法。在C波段的平面近场装置上对所提出的方法进行了测试，结果表明，它在实践中有效，所实现的残余不确定度为几十毫米和几百度的量级。
In this paper, a simple and efficient electrical alignment procedure known as flip-test is adapted and applied to check and correct two errors in the mechanical setup of a planar near-field system: the mis-pointing of the z-axis of the antenna coordinate system with respect to the scan plane and the displacement of the center point of the scan plane with respect to the z-axis of the antenna coordinate system. Simulations of the errors and their correction algorithms were carried out with different models of antennas composed of Hertzian dipoles and an optimum algorithm was then selected. The proposed procedure was tested on a planar near-field setup in C-band and the results show that it works in practice with the achieved residual uncertainty being of the order of tens of a millimeter and hundreds of a degree.