一种30MHz^1GHz军标EMI天线期间核查方法

A Period Verification Method of 30MHz^1 GHz Military Standard EMI Antenna

提出了一种30 MHz^1 GHz军标EMI天线的期间核查方法。该方法将两相同天线法与标准核查法相结合,在半电波暗室中测量其天线系数,再系统地评定这种天线系数测量方法的测量不确定度,最后通过将实测结果与证书中的数据进行比较,从而完成EMI天线的期间核查。实测结果证明,得到的天线系数与在开阔场测量的天线系数的最大差别为2.5 dB,判定准则H的最大值为0.5,说明核查方法科学有效。

A period verification method for 30 MHz^1 GHz military standard EMI antenna is proposed.By combining the two-antenna method with the standard verification method,the antenna coefficrent is measured in the semi-anechoic chamber,and then the measurement uncertainty of this antenna coefficient measurement method is systematically evaluated.Finally,the period verification of the EMI antenna is completed by comparing the measured results with the data in the certificate.The measured results show that the maximum difference between the obtained antenna coeffictient and the antenna coefficient measured in the open field is 2.5 dB,and the maximum value of the criterion H is 0.5,which indicates that the verification method is scientific and effective.