File Circuit Block Type

Instrument:
N1000A
N109x
UXR Scope
Flex Apps:
FlexDCA
FlexRT
Meas. mode:
Scope
Eye
Jitter
Package License:
L-RND

Use the File circuit block type to define either a measurement or simulaton circuit that uses an S-parameter file to model the fixture, cable, probe, or device. In the dialog, click on the S-parameter File Settings field to browse to your saved s-parameter file. The application accepts both Touchstone files (.s1p, .s2p, .s4p) and CITIfile (.cti) files.

To create S-parameter files of your device in the Touchstone format, you can use the N1000A with a TDR module. For more information, read the information on TDR/TDT mode and S-Parameters. You can also generate S-parameter files using a vector network analyzer or circuit simulator.

Options for 2-Port Device

For a two-port device, the Flip Model option is displayed as shown in the following figure.

If S-parameter file's data is not defined with the ports orientated as shown in the following diagram, select the Flip Model field. This ensures that the S-parameter order is properly interpreted.

Options for 4-Port Device

For a four-port device, the Flip Model and 4 Port Numbering options are displayed as shown in the following figure.

If the S-parameter file's data is not defined with the ports orientated as shown in the following diagram, select make the option selections as shown in the following table. This will ensure that the S-parameter order is properly interpreted.

Option Settings for 4-Port S-Parameters Files
Port Configuration in File Flip Model Setting 4 Port Numbering Setting