摘要
针对吉赫兹横电磁波(gigahertz transverse electromagnetic,GTEM)小室辐射电磁干扰(electromagnetic interference,EMI)测试精度较低及辐射源特征无法识别的问题,提出了基于Wilson算法、Lee算法和近场波阻抗理论的辐射源特征分析方法,并根据不同的辐射源特征分别提出了基于极差均值算法的共模辐射噪声测试方法以及基于方差算法的差模辐射噪声测试方法。实验结果表明,利用文中方法能够有效判断辐射源特征,提高辐射EMI测试精度,为辐射EMI测试与分析提供理论依据。
A novel method is proposed to analyze the radiated source characteristic in gigahertz transverse electromagnetic(GTEM) based on the Wilson algorithm,the Lee algorithm and the near field wave impedance theory.According to the different radiated source mechanism,radiated electromagnetic interference(EMI) measurement approaches for the common mode and the differential mode noises are presented to improve the test accuracy by employing the range-mean algorithm and the variance algorithm,respectively.The experiment results show that the radiated source characteristic can be obtained and EMI measurements will be more accuracy in GTEM,which verified the effectiveness of suggested approaches.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2013年第18期162-169,1,共8页
Proceedings of the CSEE
基金
江苏省自然科学基金项目(BK2011789)
江苏省产学研联合创新资金前瞻性联合研究项目(BY2012004)
毫米波国家重点实验室开放基金(K201309
K201318)~~
关键词
电磁兼容
吉赫兹横电磁波小室
共模辐射
差模辐射
测量校准
electromagnetic compatibility(EMC)
gigahertz transverse electromagnetic(GTEM)
common mode(CM) radiation
differential mode(DM) radiation
measurement calibration