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探讨了30 MHz~1 GHz电场辐射发射3米法测试中,受试设备(EUT)的尺寸问题。对比了不同标准中对辐射发射测试的布置要求,给出了EUT和对数周期天线主瓣宽度的适应尺寸。
In this paper, the size of the EUT is discussed in the 3-meter test of radiation emission from 30 MHz to 1 GHz. The layout requirements of radiation emission test in different standards are compared, and the adaptive size of main lobe width of EUT and log periodic antenna is given.