If the imported Touchstone v2.0 includes mixed-mode parameters, an automated conversion to conventional n-port parameters (corresponding to what is referred to as single-ended port configuration) is performed. In case of Z (impedance) data, an automated conversion to 50-ohm scattering form is performed in order to improve numerical conditioning in subsequent IdEM operations. Noise data for two-ports are also not supported and are skipped during the data read phase. All available formats (magnitude/phase and real/imag) and parameters are supported, except H and G (hybrid) data. If one or more valid Touchstone files are selected, the corresponding datasets will be generated and stored in IdEM workspace, by reading all frequency data. snp (as in Touchstone v1.1).ĭefault file location can be defined from the IdEM Configuration Setup. In general, Touchstone files in format v2.0 have extension.

snp, where n indicates the number of ports. Touchstone files in format v.1.1 have extension. Above you can nd the menu bar and the toolbars. The large area on the right hand side is the schematic area.

Usually the projects folder will be empty if you use Qucs for the rst time. The file selection dialog has a filter on file names allowing to list only relevant Touchstone files. Figure 1: Qucs has been started On the left hand side you nd the Projects folder opened. A file selection dialog looking for Touchstone files is opened. Select the Data > Import > Touchstone menu in IdEM Control Center or press the Import Touchstone button in the IdEM Toolbar. IdEM can import frequency-domain multiport data from Touchstone files both in format v1.1 and v2.0.

Qucs touchstone import