Learning Forum

[l_smith]

I can't seem to set an output variable with two arguments. For me, I would like to calculate the group velocity from the complex propagation constant, so I would like to plot:

GV = 1/deriv(im(Gamma(1)), 2*pi*Freq)

According to the HFSS help documentation this should be possible:

deriv(quantity, SweepVariable) explicitly means derivative over the sweep variable specified in the second argument (such as "Freq").

Except I can't get 'deriv' to work with any two arguments, meaning:

deriv(Freq, Freq)

 

also doesn't work. 'deriv(Freq)' (one argument) works fine using the primary sweep.

 

 

Am I missing something obvious?

Thanks for any help!

 

note: I know I can use the group delay variable, but that's not what I want

[Rob]

I've checked, and this has been logged as a problem: you're (probably) not missing anything obvious. 

[banaful2464]

I am having the same problem. Is there any solution?

[l_smith]

I never heard anything else from this, I just ended up exporting the data then using Python to perform whatever operations that I wanted.

Good luck!

[KapilGavali]

is the above problem solved?n