The effective permittivity of dielectric mixtures is influenced by important factors as: the shape and geometrical size of inclusions, their orientation with respect to the applied electric field, their space distribution and concentration in the mixture. This paper analysis these influences. One of the methods that can be success fully used in order to compute this permittivity is the numerical modeling of the mixture, using the finite element method (FEM). This method also allows us to consider the above mentioned influence factors. The numerical results obtained are compared to those computed analytically and those determined experimentally.

Keywords: Statically effective permittivity, Dielectric mixtures, Numerical modeling, Finite element method (FEM), Experimental determinations