In some applications, such as the measurement of the total phase shift of a filter, it is useful to
continuously display the phase. To do so, activate the Unwrap phase function by clicking the Unwrap
phase checkbox in the Trace configuration box . This leads to an continuos phase
display as shown below:
Figure 11-18: Unwrapped phase result shows the total phase shift of the IF filter DUT
Hint: Optionally you can limit the unwrapping to a specific frequency range. Use the Begin
and End check boxes and corresponding entry fields to define a frequency range in that the
phase shall be unwrapped. This is especially useful when the phase result contains a lot of
noise in a specific frequency range.
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OMICRON Lab
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