Study on Shielding Effectiveness Based on the Modeling of a Shielded Enclosure

The paper deals with the shielding effectiveness for electric field in an anechoic chamber. A brief description of the anechoic chamber geometric model related to walls is provided. Previous experiments proved that most of the shielding effectiveness problems appeared at joints (doors, supplying panels, ventilation panels, cables etc). Therefore, this study is focused on the shielding effectiveness for the studied anechoic chamber door and one of the ventilation panels. The simulation addressing the shielding effectiveness was accomplished with the specialized software - CST Studio Suite®. Data obtained through numeric simulations are compared to experimental data obtained for an identical anechoic chamber. The experimental data are close to that provided by simulations, proving that the model built for simulation is correct and the materials selected for shielding have good shielding properties.