11.9 Unwrapped phase
The Phase shift between two sine-waves can only be measured between -180° and +180°
respectively -π and +π in radians. If the phase shift of a DUT exceeds -180° or +180°, this fact causes
a strange-looking phase jump in the diagram.
The following figure shows the Gain and Phase curve of the IF filter DUT delivered with Bode 100:
Figure 11-17: Phase-wrap effect caused by the fact that phase can only be measured between -180°
and +180°
Bode Analyzer Suite software features
OMICRON Lab
151