Actually, I have some permitting and permeability values of a material and i want to add that material to CST library. But when i add that material the fitting of complex permitting and permeability is worse, real part of the same is ok. The actual value of complex permitting lies in the range of 2 to 3 but the fitted value lies in the range of 7e-009 which is very low. Can u please help me in this.