How create a library (or user library) of sNp-files ?

[SM6PGP]

Hi !

I am searching for info about how to create a library of sNp-files ?

It is a new feature of 4.2.2, but how ?

What is the syntax of the file I should create, where do I place it and add it ?

73 – Hannes -SM6PGP

[QucsStudio]

In the main menu “Project” choose “Import Library…”, then select the files and enter a name for the new library. Finally, press “Convert” button.

That’s all, good luck!

[SM6PGP]

Thanks !

Very nice function, I imported some ATC-cap s2p-files to try, simulation is ok

…but when I imported the files, I did choose “capacitor” as symbol but the symbol is still the ordinary square box.
Even if I choose “edit” i the library view and change from “none” to capacitor it does not change.
I can only change the symbol it by editing in the “Edit Component Properties” window in a schematic.

73 – Hannes – SM6PGP

 

[QucsStudio]

Yes, the symbol combobox is currently for SPICE subcircuits only. You should not use it for sNp files.

As a workaround, you can choose “edit” and in the “model” field append the following line:

“polar” 0 “linear” 0 “open” 0 “none” 0 “capacitor” 0

Note: The first character in the line above is a space!

[SM6PGP]

OK,  I tried the workaround, it works !

The workaround line for other component types/symbols ?

 

I really like that I can se the sNp-file comment text directly in the component window, this is a really nice feature!

73 – Hannes – SM6PGP

 

 

[QucsStudio]

Fine!

For other components, the keyword “capacitor” in the above-mentioned line can be replaced by “coil”, “BJT” or “FET”.

[SM6PGP]

Thanks !

It works now !

I made a quick trial before asking but made an error – I replaced “capacitor” with “inductor” which of course does not work !

73 – Hannes – SM6PGP

[ddieterle]

The library creation from a set of s-parameter files is a really nice feature I was looking for so long…! 🙂

Is it also possible to show the component name or, if this is not feasable, the component description in the schematic?

You can set the file-name. This works too, but is not as readable as it would be the component name itself.

 

Thanks you,

Daniel.

• This reply was modified 2 years, 2 months ago by ddieterle.

[QucsStudio]

Currently, the only possibility is to use the component name of the symbol. I.e. for the example above:

In the “model” field, replace the second token “SP” with “_15SQ47N_”.

Note that a component name must not begin with a digit, therefore the underscore at the beginning. And the schematic editor will append a number at the end in order to make the string unique, therefore the underscore at the end (for better readability).

Good luck!

[ddieterle]

Fine, the work around does the job. Now the component name is shown as the reference designator and incremented when drag-n-drop a new component from the library window:

 

As you can see compared to the old the new component description is much more easier to read:

If there is some spare time left: Might it be possible to set the two points (Bugfix: symbol combobox for sNp symbols. New feature: Reference designator as a new component property, instead of using the component name as a reference designator) on a remarks list, so that if there are changes made in the future they would be incorporated?

Thanks a lot for your non-exhaustive commitment,

Daniel.

• This reply was modified 2 years, 2 months ago by ddieterle.

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