Generating 16 port touchstone file: not responding!

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

 

I am trying to export Y-parameters of an array which includes 16 elements, hence, 16 ports. I want to create a .y16p file but every time I try to export POSTFEKO crashes and is not responding.

 

I know it is a lot of data to export, but is there any other way to get Zparameter data?

 

Thanks in advance!

 

 

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Hello @Meerten

     

    This sounds like a bug - would it be possible to attach your model files here or send them to the Feko support team so that we can reproduce the problem?

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Hello @Peter Futter,

     

    Thanks for your quick response! I found a workaround. Now I just go to the S-parameter configuration in CADFEKO and check the 'Export S-parameter to Touchstone file (* .snp)'. Then it automatically computes the .s16p file and with this file I can post-process and convert it to the .y16p file.

     

    However, shall I still include the model files, so that you can figure out if it is a bug or something?

  • Madelé
    Madelé
    Altair Employee
    edited November 2018

    However, shall I still include the model files, so that you can figure out if it is a bug or something?

     

    Hi @Meerten

     

    It would be great if you could provide the files (attach or send to support) so that we can take a look at what is going wrong.

     

    Thanks!

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Here are the model files. Let me know if it was a bug or a mistake I made!

    Unable to find an attachment - read this blog

  • Madelé
    Madelé
    Altair Employee
    edited November 2018

    It looks like a performance bug when exporting Y and Z parameters - we'll ask our developers to investigate. I didn't see any mistake in your model.

     

    Exporting the S-parameters (during simulation or from POSTFEKO) seems to work and will have to be used as a workaround for now (like you mentioned).

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2018

    Thanks for the support!

  • Madelé
    Madelé
    Altair Employee
    edited December 2018

    @Meerten, our developers have investigated and fixed the performance problem with Y and Z parameter export. The fix should go out with an update early in 2019. Thanks for bringing the issue to our attention!

  • Madelé
    Madelé
    Altair Employee
    edited December 2018

    @Meerten, the fix for the Y-parameter export problem is contained in Feko 2018.2.1 that was released today. 

     

    Kind regards

    Madelé

     

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