Wave Influence

Wave Influence

Mechanism Wave influence is the combination of capacitive and inductive coupling of parallel lines, if the wave lengths of the signals are within their measurements, i.e. with highly frequent signals. A progressive wave which creates an electric field and a magnetic field is now the source of interference.

Current and voltage distribution on the line depend among other things on the following values:  Wave resistance of the line  Termination resistance of the line

Reflection of the signal occurs on the line or at the end if the wave resistance at the join is changed or if the wave resistance and the termination resistance are not the same size. The reflections override the incoming wave. Lines within the range of the wandering fields are susceptible equipment. The coupling between the individual lines is done via the respective partial wave resistances.

Size of the interference

The amount of coupled interference voltage depends on the impedances of the disturbed lines. References for ratio calculations have been developed in conductor theory.