Assign S-Parameters to components in AEDT HFSS 3D Layout

[zolabar]

Hello,

is there a way of opening an aedt file with HFSS 3D Layout Project with pyAEDT and assign S-Parameter touchstone files to a list of components, for instance capacitors, with pyAEDT?

Thank you!

Regards,

Zoufiné

[Samuelopez-ansys]

@zolabar

It is not implemented in PYAEDT, because it is already implemented in PyEDB.

If you are not aware of this library, I encourage you to take a look, because you can perform the layout preprocessing before importing into HFSS 3DLayout.

And for instance you can add the S parameter model:
https://edb.docs.pyansys.com/version/dev/api/_autosummary/pyedb.dotnet.edb_core.cell.hierarchy.component.EDBComponent.assign_s_param_model.html

If you have an existing .aedb folder, you can just duplicate it in a different directory, and load it with PyEDB.

If you need this feature in PyAEDT please, submit an Issue.

[zolabar]

@Samuelopez-ansys, thank you, that seems to be exactly what I was looking for.

I used the iron python scripting for these kind of things almost 10 years ago.

The pyAEDT and pyEDB packages are new for me, I am looking forward to enhancing my workflows with them!

[Samuelopez-ansys]

Great! We need users with your experience who will give us more ideas to improve both libraries :)

Of course, this is open source, so you can contribute with any of your good ideas @zolabar

[zolabar]

Great! We need users with your experience who will give us more ideas to improve both libraries :)

Of course, this is open source, so you can contribute with any of your good ideas @zolabar

@Samuelopez-ansys, I am trying out these ideas and I have some problems ;)

Should I open a new issue or should we discuss here?

I order to assign s parameters, for instance to a capacitor component "C0" I would need to open the file first, e.g.

for a file package.aedb that lyies in the same directory as the executed python file.

from pyedb import Edb

edb = Edb("package.aedb", edbversion="2024.1")

comp = edb.components["C0"]

comp.is_enabled = True

If this works I could add lines that assign S-Parameters to the component. But already while reading the file I get errors, am I proceeding correclty? Do you know what the error is and what I should do? Thank you!

I get error messages:

Traceback (most recent call last):
File /PyAnsys/capacitor_s.py", line 3, in
edb = Edb(package.aedb", edbversion="2024.1")
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/PyAnsys/.venv/lib/python3.11/site-packages/pyedb/generic/design_types.py", line 110, in Edb
return app(
^^^^
File "/PyAnsys/.venv/lib/python3.11/site-packages/pyedb/dotnet/edb.py", line 209, in init
Database.init(self, edbversion=edbversion, student_version=student_version)
File "/PyAnsys/.venv/lib/python3.11/site-packages/pyedb/dotnet/edb_core/dotnet/database.py", line 829, in init
EdbDotNet.init(self, edbversion=edbversion, student_version=student_version)
File "/PyAnsys/.venv/lib/python3.11/site-packages/pyedb/dotnet/edb_core/dotnet/database.py", line 759, in init
_clr.AddReference("Ansys.Ansoft.Edb")
System.IO.FileNotFoundException: Could not load file or assembly 'Ansys.Ansoft.Edb, Culture=neutral, PublicKeyToken=null'. The system cannot find the file specified.

File name: 'Ansys.Ansoft.Edb, Culture=neutral, PublicKeyToken=null'
at System.Reflection.RuntimeAssembly.nLoad(AssemblyName fileName, String codeBase, RuntimeAssembly assemblyContext, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, AssemblyLoadContext assemblyLoadContext)
at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
at System.Reflection.Assembly.Load(AssemblyName assemblyRef, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext)
at System.Reflection.Assembly.Load(AssemblyName assemblyRef)
at Python.Runtime.AssemblyManager.LoadAssembly(AssemblyName name) in /tmp/build-via-sdist-s1jxy7eq/ansys-pythonnet-3.1.0rc3/src/runtime/AssemblyManager.cs:line 227
at Python.Runtime.CLRModule.AddReference(String name) in /tmp/build-via-sdist-s1jxy7eq/ansys-pythonnet-3.1.0rc3/src/runtime/Types/ClrModule.cs:line 107

[Samuelopez-ansys]

Hi @zolabar Please submit an Issue in PyEDB repository.

https://github.com/ansys/pyedb

You should pass the absolute path of the file, this is quite straightforward using "os" module.

os.getcwd() gives the current directory for example

and you can get the file path:

os.path.join(os.getcwd() , "example.aedb")

[zolabar]

@Samuelopez-ansys, thank you for the hint and the feedback. I added the absolute path, but the propblem persists. I'll submit an issue int the PYEDB Repo 👍