Equivalent Skin Effect Model for Time-Domain Analysis Starting from Electromagnetic Simulator Values

An equivalent circuit to reproduce the skin effect behavior in an arbitrary structure modeled as resistance-inductance has been developed modifying the Foster model. Taking the values of inductance and resistance in the frequency domain directly from electromagnetic analysis obtained by commercial software, the proposed model allows to implement an equivalent circuit that can be used with time-domain simulator. The developed circuit is very simple, thus reducing the computational times with respect to other approaches, but still preserves a good match with the electromagnetic simulation results.