Two Alternative Methods to Measure the Radiated Emission in a Reverberation Chamber
Two Alternative Methods to Measure the Radiated Emission in a Reverberation Chamber
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DOI：
10.1155/2016/5291072
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发表时间：
2016-02
影响因子：
1.5
通讯作者：
Qian Xu;Yi Huang;S. Yuan;Lei Xing;Z. Tian
中科院分区：
文献类型：
--
作者：
Qian Xu;Yi Huang;S. Yuan;Lei Xing;Z. Tian
混响室最重要的应用之一是辐射功率的测量。本文提出了两种测量混响室内被测设备辐射功率的新方法。传统上，如IEC 61000-4-21标准所述，这种测量需要两个天线，一个信号发生器和一个频谱分析仪或接收器。但是，发现如果没有信号发生器，可以使用矢量网络分析仪来完成测量。此外，如果只有一个天线可用，利用增强的后向散射效应，仍然可以完成测量。通过结合单天线和/或双天线的方法，还考虑了天线的辐射效率。对所提出的方法进行了实测验证，并对三种方法的结果进行了比较，得到了很好的一致性。结果表明，这两种方法都比传统方法简单。
One of the most important applications of a reverberation chamber is for radiated power measurement. Two new alternative methods are proposed to measure the radiated power of equipment under test in a reverberation chamber in this paper. Traditionally, as stated in IEC 61000-4-21 standard, this measurement requires two antennas, a signal generator and a spectrum analyzer or receiver. However, it is found that if a signal generator is not available, a vector network analyzer can be used to complete the measurement. Furthermore, if only one antenna is available, by taking advantage of the enhanced backscattering effect, the measurement can still be completed. By incorporating the one- and/or two-antenna methods, the radiation efficiency of antennas is also considered. Measurements have been conducted to verify the proposed methods, the results from these three methods are compared, and a very good agreement is obtained. It is found that the two proposed methods are simpler than the conventional method.