I have a 3-port s-parameter file that I am importing into Eagleware. I can plot the differential gain (for example) by typing

=db20((.rect[s31]-.rect[s32])/2)

as a measurement. I would like to plot the group delay of this trace, but I don't know how to do this. =GD((.rect[s31]-.rect[s32])/2) does not work. Is this possible? Thanks!

=db20((.rect[s31]-.rect[s32])/2)

as a measurement. I would like to plot the group delay of this trace, but I don't know how to do this. =GD((.rect[s31]-.rect[s32])/2) does not work. Is this possible? Thanks!