Newbie level 3
I found a lot of papers extract permeability of a metamaterial slab based on the Lorentz models. However, I cannot find a paper introduce how to decide plasma frequency in magnetic field. The only thing I get is an equation used in Split ring resonators which relate it with a filling factor as wp^2=Fw^2. But I don't use SPP in my design. Does anyone know how I calculate the plasma frequency with a given geometric models and Inductance? Or any other method to complete it?