Full-wave investigation of EFT injection clamp calibration setup

Abstract

The paper deals with a full-wave investigation of the capacitive coupling clamp that is used in electrical fast transient (EFT) immunity test to inject disturbances to nominal signals. The analysis is performed by using the software tool MicroWave Studio (MWS) based on the finite integration technique. The model of the injection clamp is validated by comparison with measurements and with the results obtained by SPICE. The full-wave model is used to investigate EFT injection clamp calibration setup, such as that proposed in section “6.4.2 Calibration of the capacitive coupling clamp” of the IEC 61000-4-4 new Edition (i.e., the 3rd).