Quantitative Interlaboratory Comparison of Radiated Immunity Test for On-board Equipment

With respect to the radiated immunity standard for on-board equipment (ISO 11452–2), a new draft assessment method for evaluation of the validity of measuring sites and correlation among test sites is proposed. This method consists of the long wire antenna method described in CISPR 25 and the reference field calibration. Regarding the proposed method, round-robin measurement was performed at 20 sites. It became clear that in order to assure high inter-laboratory comparison, characteristics of field-radiating antennas should be the same, and strong resonance characteristics originated in the measurement system appear as part of the stress level applied on the device under test.