Numerical evaluation of coaxial RF calibration standards

We evaluate the RF network scattering parameters (S-parameters) of the calibration standards for the coaxial transmission lines. Those standards include: single ended open/shorts, step discontinuities in inner/outer conductors, tapers, and mismatch airlines. We use either an analytical function when the geometry is simple, or finite elements analysis for the more elaborate geometry. Whenever possible, we compare the analytic, numerical and experimental results.