Right-click Export (

) and select 
Touchstone (

) to export data on the Touchstone data format. You specify the export using the 
Data and 
Output sections below; then click the 
Export button (

).
 
    From the Dataset list, choose the dataset that contains the data for which you want to make a Touchstone export. Solution datasets are available from this list. Typically, also select which frequencies to include from the 
Parameter selection (freq) list (default: 
All).
 
    Specify the filename for the Touchstone export in the Filename field. Click 
Browse to open the 
Export Data dialog box and browse to the desired location on the file system for a Touchstone file. In most cases, the extension will be *.s
Np, where 
N is the number of ports (for example, *.s2p for a two-port model). Click the downward arrow for the 
File Location Actions menu (

) to choose 
Copy File Location (

) and (if you have copied a file location) 
Paste File Location (

).
 
    Select the Always ask for filename check box if you want the 
Export Data dialog box to appear when you click the 
Export button (

).
 
    From the Physics interface list, choose any of the physics interfaces in the model that support Touchstone export. 
None is always an allowed value. Click the 
Go to Source button (

) to move to the selected physics interface.
 
    From the Parameter to export list, choose one of the following parameters: 
S, 
Y, 
Z, 
G, and 
H. The available parameters are the network parameters that are supported by the chosen physics interface. If you have chosen 
None from the 
Physics interface list, the 
Parameter to export list is not available.
 
    From the Parameter format list, choose one of the following formats: