In this paper, a spatial and frequency selective electromagnetic shield, employing an anisotropic metamaterial device, is analyzed and developed. The results are based on a numerical analysis using the Finite Element Method (FEM). The device is based on the cloaking concept. This is constructed employing a coordinate transformation considering Maxwell's Equations independence from coordinate system. The frequency selection is obtained due to the frequency dispersion characteristic of metamaterials, which is a consequence of entropy condition on resonant media. ©2010 IEEE.