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Problems with Stirred Immunity Measurements in a Reverberation Chamber -- Corrections to DO-160G Section 20.6

Published

Author(s)

John M. Ladbury

Abstract

Abstract—When DO-160G, Environmental Conditions and Test Procedures for Airborne Equipment [1], Section 20.6, was modified in 2010 to simplify electromagnetic susceptibility measurements in a reverberation chamber and switch from a stepped paddle (mode-stepped or mode-tuned) to a continuously moving paddle (mode-stirred), an error was introduced which overestimates the test level by approximately 1.4 to 3 dB, and possibly more (the error should increase with exposure frequency). We offer a possible explanation for the cause of the error, and suggest several possible ways to give a more accurate estimate of the exposure field.
Proceedings Title
2018 Joint IEEE EMC & APEMC
Conference Dates
May 14-17, 2018
Conference Location
Suntec City, SG

Keywords

Stirring, tuning, reverberation chamber, susceptibility, airborne, equipment, immunity, uniformity

Citation

Ladbury, J. (2018), Problems with Stirred Immunity Measurements in a Reverberation Chamber -- Corrections to DO-160G Section 20.6, 2018 Joint IEEE EMC & APEMC, Suntec City, SG, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=925337 (Accessed June 16, 2024)

Issues

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Created May 13, 2018, Updated April 19, 2022