High-Frequency BCI-Like Tests With a Stripline Injection Probe

This paper presents an innovative and compact injection system able to extend the possibility to perform bulk current injection (BCI) tests until 2 GHz (at least). The proposed structure is a Stripline injection cell ensuring the propagation of a progressive transverse electromagnetic wave (TEM). Within the structure, the victim cable is exposed to a tangential electric field of high amplitude corresponding to the TEM wave. In order to illustrate the interest and the performances of the proposed setup, a generic device under test is built. Then, when comparing the performances of the proposed system with a reverberation chamber from an immunity test point of view, it is shown that the proposed setup obtains similar performance until 2 GHz, in particular when comparing the power required to obtain a failure of the device under test. Due to its simple geometry, the proposed injection system is easy to model with a full-wave EM solver and does not present any nonlinear effect, two important advantages in comparison to classical toroidal magnetic probes used in BCI tests.