Expand description
Shared impedance computation helpers.
Effective dielectric constant, conductor thickness correction, Kirschning-Jansen frequency dispersion — used by all topology modules.
Functions§
- capacitance_
per_ length - Capacitance per unit length from Zo and Tpd (pF/in).
- effective_
width - Conductor thickness correction — effective width increase due to finite thickness.
- er_
eff_ static - Static effective dielectric constant (Hammerstad-Jensen).
- inductance_
per_ length - Inductance per unit length from Zo and Tpd (nH/in).
- propagation_
delay - Propagation delay from Er_eff (ps/in).