Evaluation of electromagnetic radiated susceptibility testing using induced currents

This paper uses electromagnetic field theory to examine the relations between radiated induced currents and Bulk Current Injection (BCI) injected currents to compare the data from the BCI and radiated field induced currents and to determine the range where BCI effectively simulates the radiated induced coupling. Establishing a uniform plane wave to illuminate the cables is also addressed. The test includes illuminating a wire bundle with a uniform plane wave and comparing the current induced on individual wires with the current induced in the same wire by the BCI technique. The uniform plane waves are generated by a parallel plate guide. The loads are varied on the wires to examine the effects of the load on field to wire coupling versus BCI method. The effects of BCI on inner conductors of shielded cables is also addressed.