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A Study on the Optimized Measurements of Field Uniformity for Electromagnetic Radiated Immunity Test System  

Cho Jin-Young (Ichon Branch of Radio Research Laboratory)
Mun Jun-Chul (Ichon Branch of Radio Research Laboratory)
Jung Chang-Kyoo (School of Electrical, Electronics and Information Eng., Chungju University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.16, no.6, 2005 , pp. 622-631 More about this Journal
Abstract
In this paper, we reduce 'over and under deviation' and 'over and under testing' which have a cause of uncertainty in electromagnetic radiated immunity test. We analyze continued measurement method of field uniformity and propose new estimate method having the minimum uncertainty condition. We test comparison in 4 anechoic chambers and analyze FDI(Field Deviation Index) which is the minimum deviation excess 6 dB on fields. We obtain that the proposed test method improve 1.193 dB than domestic standard(KN 61000-4-3) and 0.017 dB than international standard (IEC61000-4-3) in every frequency. In the test result 'over and under testing point' have 926 point at every field area and have 118 point at center uniform area. These result know that proposed measurement method have 10 point less at every field area and 9 point less at center uniform area than continued measurement method. The proposed test method have few point more than continued measurement method. Therefore, we confirmed that the proposed test method have the minimum uncertainty in electromagnetic radiated immunity test.
Keywords
Field Uniformity; Electromagnetic Radiated Immunity; Over and Under Deviation;
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  • Reference
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