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Evaluation of Uncertainties in Electromagnetic Disturbance Measurement above 1 GHz due to Site Imperfections

Toshihide TOSAKA, Yukio YAMANAKA

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Summary :

The data dispersion of the measurement of electromagnetic disturbance above 1 GHz is mainly affected by site imperfections (expressed by the site voltage standing wave ratio (SVSWR)). To confirm the relationship between site imperfections and the measured field strength, we measured the SVSWR and the field strength radiated from the equipment under test (EUT) by changing the area covered by the RF absorber on the metal ground plane. From the results, we found that the data dispersion of measured field strength can be estimated from the measured SVSWR, and therefore, we can determine the measurement uncertainty of the measured field strength at the test site.

Publication
IEICE TRANSACTIONS on Communications Vol.E93-B No.7 pp.1690-1696
Publication Date
2010/07/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E93.B.1690
Type of Manuscript
Special Section PAPER (Special Section on Advanced Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'09/Kyoto)
Category
EMC Measurement Technique, EMC Test Facilities

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