A model is parametric when it is created using variable expressions. When a variable
expression is modified, any items dependent on that variable are re-evaluated and
automatically updated. It is the recommended construction method when creating a
model, but not compulsory.
Defined variables are stored as part of the model in the .cfx
file.
Open the Create Variable dialog using one of the
following workflows:
On the Construct tab, in the Define group, click the Add Variable icon.
On the model tree, a right-click context menu is available on Variables. From the
list, select Add Variable.
On the model tree, click the icon. From the drop-down list, select Add Variable.
Press # to use the keyboard shortcut.
Create the following variables:
Optional: Add the variable comments.
Name
Expression
Comment
freq
9e9
The operating frequency.
lambda
c0/freq*1000
Free space wavelength.
pin_r
1
Pin radius.
wg_h
10
Waveguide height.
wg_w
20
Waveguide width.
Tip:
Click Add to keep the Create Variable dialog open and add more
variables.
Click Create to add a variable and
close the Create Variable dialog.