Numerical study of the shielding effectiveness of a rectangular enclosure with elliptic apertures

This paper deals with the numerical analysis of the shielding effectiveness (SE) of enclosure with elliptic apertures in one face. Elliptic apertures are treated as a length of coplanar strip transmission line and the enclosure as rectangular waveguide. The shielding effectiveness of the enclosure are studied by Finite Integration Technique (FIT) over broad band (0-3GHz).