Summary
International Symposium on Electromagnetic Compatibility
2009
Session Number:23R1
Session:
Number:23R1-3
Round Robin Test of EMI Measurement in the 1 - 18 GHz Range
T. Tosaka,
pp.545-548
Publication Date:2009/7/20
Online ISSN:2188-5079
Summary:
To evaluate uncertainty in electromagnetic interference (EMI) measurement in the 1 - 18 GHz range, a round robin test was conducted at 13 measurement sites. The maximum data spread of the measured field strength of equipment under test (EUT) that mainly radiates vertical components was 5.0 dB for both the peak and average detector in the case of vertical polarization. The maximum data spread increased to as much as 14.5 dB in the case of horizontal polarization. It was found that the spread of the measurement was mainly affected by site imperfections (SVSWR), the material of the setup table, and receiver characteristics. Finally, the validity of the uncertainty budget sheet being developed by CISPR is discussed.