Measured electromagnetic shielding performance of commonly used cables and connectors

Abstract
The intrinsic electromagnetic property of a cable or connector shield is considered its surface transfer impedance. This is the ratio of the longitudinal open circuit voltage measured on one side of the shield (normally the inside) to the axial current on the other side (normally the outside). In cases where a high electric field is present at the surface of the shield, the transfer admittance or charge transfer elastance is also important. Measurements of typical cables, connectors, backshells, and cable terminations are presented and explained in terms of simple models.

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