In computational electromagnetics, when modeling structures that include finitely conducting metal bodies that are more than several skin depths deep, one often uses a surface impedance boundary condition at the metal surface instead of trying to rigorously compute the rapidly decaying fields within the metal. This small package MetalSurfaceImpedance implements the approximate formulas from a recent paper: D. N. Grujić, “Simple and Accurate Approximation of Rough Conductor Surface Impedance,” IEEE Trans. Microwave Theory Tech., vol. 70, no. 4, pp. 2053-2059, April 2022, for computing surface impedance and effective conductivity. As reported in the reference, these formulas agree with rigorous solutions of the second order differential equation to a relative accuracy better than 0.001 from 10^{-8} Hz to 10^{12} Hz. The Julia implementation returns a result in about 500 nsec on my machine.
Related topics
Topic | Replies | Views | Activity | |
---|---|---|---|---|
ImpedanceFitter | 1 | 447 | September 14, 2023 | |
[ANN] EquivalentCircuits.jl for impedance spectroscopy analysis in Julia | 6 | 657 | February 16, 2023 | |
New finite element package | 4 | 1146 | July 4, 2017 | |
EquivalentCircuits: Plot fitted impedance curve | 1 | 374 | November 8, 2022 | |
Problems performing 1D-FDTD for dispersive dielectric uisng lorentz model in Julia | 0 | 183 | February 23, 2024 |