针对吉赫兹横电磁波fgigahertz transverse electromagnetic,GTEMl小室用于辐射电磁干扰(electromagnetic interference,EMI)测量精度不高的问题,提出一种GTEM小室测量EMI噪声的的校准方法,采用多项式模型提取辐射噪声,利用方差对该模型的计算误差进行补偿,并基于高阶矩分析校准后的GTEM小室和3m电波暗室测量辐射电场值分布的相似性。实验结果表明,采用该文所提方法可显著提高GTEM小室的测量精度,验证了方法的有效性。
In order to solve the problem of radio emission measurement in gigahertz frequency transverse electromagnetic (GTEM) cells, the theoretical model and calibration methods are proposed to improve the accuracy of electromagnetic interference (EMI) noise measurement.