For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
Evaluation of Uncertainties in Electromagnetic Disturbance Measurement above 1 GHz due to Site Imperfections
Toshihide TOSAKA Yukio YAMANAKA
IEICE TRANSACTIONS on Communications
Publication Date: 2010/07/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
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
site voltage standing wave ratio (SVSWR), electromagnetic disturbance, uncertainty,
Full Text: PDF(853.3KB)>>
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.