Measuring the EMC on RF - connectors and connecting hardware . Tube in tube test procedure

Although customers require the Screening attenuation as measure of the screening effectiveness, on short elements like connectors or short cable assemblies one can measure only the Transfer impedance up to the GHz range. With the new "Tube in tube" test procedure the cut-off frequency between the Transfer impedance and the Screening attenuation can be moved to lower frequency ranges. The new test procedure offers a wide frequency range from a few kHz up to and above 3 GHz with a high dynamic range down to 125 dB with high reproducibility. Sample preparing is fast and easy. Due to the closed test set-up, the procedure is insensitive against outer EMC disturbances. The test procedure is under consideration at IEC TC46/WG 5, Screening effectiveness, as IEC SC 46A/657/CD.