Reference box to control measurements of low frequency HIRF transfer functions

Abstract

This paper addresses the issue of transfer function measurements inside a structure in High Intensity Radiated Fields environment (HIRF). In this context, a simple reference test object was designed and used as a set up verification device to be tested before HIRF measurement campaigns on aircraft. In order to obtain a reference measured transfer function between the incident E-field and an internal induced current this object has been calibrated in laboratory using a strip-line which enables to fully control the incident EM field. We focus, here, on the need to perfectly control the whole measurement links and test setup to ensure a sufficient level of sensitivity and reproducibility.