The Feature Selective Validation Technique as Analysis Tool for Shielding Effectiveness of Slotted Enclosures

The results of feature selective validation (FSV) technique are used as analysis tools to identify the influence of differences and/or imperfections in the results between measurement setup and simulation models for the evaluation of shielding effectiveness in slotted enclosures. The experiments are carried out on the enclosure placed in the gigahertz transverse electromagnetic (GTEM) cell. A new technique for the evaluation of the shielding of a slotted enclosure is proposed. The enclosure under test is equipped with a built-in, rotating, and conductive stirrer, and the shielding is measured or computed at discrete angles of the stirrer. The stirrer is used for modeling different internal arrangements of the enclosure and for an approximation of the “worst case” of the shielding performance.