mutual impedance between antenna elements

mgmv7
mgmv7 Altair Community Member
edited October 2020 in Community Q&A

Can we directly calculate mutual impedance beween antenna elements? So far I have takes mutual coupling (S-parameters -S12 ) and extracted Z12 from it using formula.

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Answers

  • JIF
    JIF
    Altair Employee
    edited October 2018

    Hello mgvm7,

     

    The easiest way that I can think of to perform the calculation is to export your S-parameters in POSTFEKO to an impedance Touchstone file (.znp file).

  • mgmv7
    mgmv7 Altair Community Member
    edited October 2018

    how to export S to .znp file?

  • Madelé
    Madelé
    Altair Employee
    edited October 2018

    Hi mgmv7

     

    On the Home tab in POSTFEKO, you can select 'Export' and 'Touchstone', select the result to export and then for 'Network parameter type' select 'Z (impedance parameters)'.

     

    image.png.36512d9a1ff31da7228829bd1cdcf347.png

     

  • mgmv7
    mgmv7 Altair Community Member
    edited November 2018

    thank you @MvdM

     

    Can you tell me how to use lua file?

  • Madelé
    Madelé
    Altair Employee
    edited November 2018

    On the Home tab in CADFEKO or POSTFEKO, click on 'Script editor'. You can open, view, edit and run Lua script files in the script editor.

     

    Refer to the 'Scripting' section under the 'Quick Tour of the CADFEKO Interface' in the Feko 2018 user manual. For more detailed information, see the chapter on 'Scripts and Application Programming Interface (API)'.

     

    For demonstrations of how to use scripting, you can watch the webinars that are available from the Altair HyperWorks Resource Library:

    image.png.c056a695ed3c1790a1a98267391fec7a.png

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