rizer.electric_circuit.cable#
Classes#
Ideal transmission line. |
Module Contents#
- class rizer.electric_circuit.cable.IdealCable(L: float, Z_c: float, c: float)#
Ideal transmission line.
The transmission line is defined by its length, impedance and wave velocity.
The transmission line is assumed to be ideal, meaning that there is no loss in the line and that the wave velocity is constant.
- Parameters:
L (
float) – Length of the transmission line in meters.Z_c (
float) – Characteristic impedance of the transmission line in Ohm.c (
float) – Wave velocity in the transmission line in m/s.
Notes
For an ideal transmission line, the voltage and current satisfy the wave equation (or telegrapher’s equation without loss):
\[\begin{split}\begin{align} \frac{\partial^2 V}{\partial t^2}(x, t) & = c^2 \frac{\partial^2 V}{\partial x^2}(x, t) \\ \frac{\partial^2 I}{\partial t^2}(x, t) & = c^2 \frac{\partial^2 I}{\partial x^2}(x, t) \end{align}\end{split}\]where:
\(V\) is the voltage in Volt,
\(I\) is the current in Ampere,
\(c\) is the wave velocity in m/s,
\(x\) is the position along the transmission line in meter,
\(t\) is the time in second.
- L: float#
Length of the transmission line in meters.
- Z_c: float#
Characteristic impedance of the transmission line in Ohm.
- c: float#
Wave velocity in the transmission line in m/s.
- static check_parameters(L: float, Z_c: float, c: float)#
Check the parameters of the transmission line.