Characterisation of Field-to-Line Coupling in a Reverberation Chamber using In-situ Calibrated Current Probes

A method is presented which allows to measure RF interference currents on transmission lines contactlessly in a reverberation chamber. In-situ calibrated current probes are used as contactless couplers. They differ from conventional EMC current probes primarily in the use of a vector error correction, which results in a significant reduction of the measurement error. This paper analyses the suitability of in-situ calibrated current probes for transmission measurements or contactless vector network analysis, with which the field-to-line coupling in a reverberation chamber can be characterized.