分布式天线系统（DAS）天线测试方法探讨

分布式天线系统（DAS）天线测试方法探讨

内容简介：通过对200多副DAS天线增益和水平面半功率波束宽度两项技术指标的测量，发现远场与近场测试数据超出测试误差范围。采用DAS壁挂天线在远场和近场进行对比测试，得出天线主极化、交叉极化的水平面方向图和增益，并将之叠加得出合成方向图和合成增益，得到天线的水平面半功率波束宽度和增益，且远场合成后的数据与近场基本一致。由此提出DAS天线远场功率合成测量方法，可为运营商进行DAS覆盖设计提供准确依据，确保移动通信网络有效运行。

Abstract： By measuring the two technical indexes of antenna gain and the horizontal half power beam width for 200 pairs of DAS antennas, we found that the test data of both far field and near field exceed the error range. In the far field and near field test using DAS wall antenna, the main polarization pattern, cross polarization pattern and their gains are obtained. Superposing above patterns and gains, the horizontal half power beam width and gain of antenna are derived. We found the far field synthetic data is almost consistent with the near field data. We propose the DAS antenna far field measurement method of power synthetic. This method can provide accurate basis of DAS network coverage design for operators to ensure the effective operation of the mobile communication network.

作者：赵研,

关键词：DAS, 功率合成测量, 增益, 水平面半功率波束宽度, 方向图,