随机视距下汽车OTA测试用阵列馈电圆柱形反射天线

A. Razavi, A. A. Glazunov, P. Kildal, R. Maaskant
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引用次数: 15

摘要

本文研究了一种由圆柱反射器和线阵馈源组成的近场测量装置。主要应用是在消声室或半消声室(即带反射底板的消声室)中进行随机视距空中测量。更具体地说,其目的是在汽车上测试无线通信系统。目的是在包含汽车或至少包含天线的汽车部分的预定义测试区域上产生平面波的均匀场分布。研究了测试区内的场强变化,以便在测试频率带宽(即1.6-2.8 GHz)范围内进行参考测量。
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Array-fed cylindrical reflector antenna for automotive OTA tests in Random Line-Of-Sight
In this paper we look into a near-field measurement setup consisting of a cylindrical reflector and a linear array feed. The main application is Random Line-Of-Sight Over-The- Air measurements in anechoic or semi-anechoic chambers (i.e., anechoic chamber with reflecting floor). More specifically, the aim is testing the wireless communication systems on automotive vehicles. The aim is to generate the uniform field distribution of a plane wave over a pre-defined test zone containing the car or at least the part of the car containing the antenna(s). The field intensity variations over the testing zone have been investigated for reference measurements over the testing frequency bandwidth, i.e., 1.6-2.8 GHz.
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