Output - Inductor Model File
NOTE: The Inductor Model Extractor (IME) feature is only available if you have purchased a Broadband Spice Extractor license from Sonnet. Please see your system administrator if you are unsure of the availability of this feature.
When you select Output - Inductor Model File from the response viewer main menu, the Inductor Model File dialog box is opened. This dialog box allows you to specify the parameters to be used in generating the Inductor model for the analysis results of the presently displayed project; the parameters are discussed in detail below. You may also set up an external data file to be generated during the analysis by using the Output Files page of the Circuit Settings dialog box in the project editor tab.
There are two tabs in this dialog box: Basic and Advanced.
Topology: There are two topologies available, the Untapped Topology and the Center Tapped Topology. Select which topology you wish to use from this drop list.
Format: The output data may be formatted in the PSpice, Spectre or Sonnet netlist format. Select the desired format from this drop list.
De-embedded: This allows you to select de-embedded or non-de-embedded data.Select Yes from the drop list f you wish to use de-embedded data. For a discussion of de-embedding, see the De-embedding in the Sonnet User's Guide.
Optimization Band: This section of the dialog box only appears if Center Tapped is selected as the Topology. Enter the frequency band over which you wish to optimize your inductor model here by entering the starting frequency of the band in the Start Text Entry box and the ending frequency in the Stop text entry box. If you wish the software to automatically calculate the optimization band, select the Auto checkbox. If this checkbox is selected, then both of the frequency text entry boxes are disabled and the values used are plus and minus 10% of the frequency where the maximum Q occurs.
Model File Name: An automatically generated filename appears in this entry box. For Spectre and PSpice, the filename is your project basename with the appropriate extension. For a Sonnet netlist, the automatically generated filename is your project basename with "IMEnet.son" added. You may use the name which appears or enter another filename in this text entry box. You may specify an absolute or relative path. If no path is specified, the software writes the output file to the same directory in which your source project is saved.
Extract: Once you have completed entering the desired parameters, click on the Extract button to create the Inductor Model output file. Once the extraction is complete, the Schematic window appears on your display with the model schematic displaying the calculated values.
Generate Predicted S-parameter data file: Selecting this checkbox creates a file which contains the predicted S-parameter data produced by the inductor model. The filename to which the predicted data is written appears just below and may not be changed. This file is created in the same directory in which the output model file is created. This file allows you to visually inspect how close a fit your inductor model is to your source data.
Additional options: This field should only be used at the direction of Sonnet support personnel.
Remember settings checkbox: Turn this on if you wish to retain the values entered above for the next time the dialog box is opened.
Restore Defaults: Click on this button to change all the settings in this dialog box to the defaults used upon installation of the software.