Prediction of magnetic field radiation using equivalent current distribution

Near field measurement has commonly been used as an efficient and effective method for EMC diagnosis purpose for prediction of electromagnetic field radiation in an electronic circuit design; the near field values are obtained on scattered points on the measurement plane. In the paper, we investigated a novel method in predicting the magnetic field radiation using measurement of only a single magnetic field component, by reconstruction of an equivalent current source of the interpolated measurement data. Numerical tests have demonstrated the effectiveness of the proposed method.