Experimental Investigation of the Shield Termination Effect on the Field-to-Cable Coupling Level

The functional and environmental requirements as well as the electromagnetic compatibility requirements are important in determining the types and installation of the cables used in platforms such as aircrafts. Interference problems related with field-to-cable type coupling mechanism is especially important. In this work, a typical cable connection between two avionic equipments is considered and investigated experimentally in order to assess the effect of shield termination on the field-to-cable coupling level. An experimental setup is developed and experiments are carried out on two different cables for several shield termination cases. Measurement results are given emphasizing the importance of the shielding integrity of the connectors in addition to the shield termination requirements.