Feed Network Impedances Measurement

Sem z
Sem z Altair Community Member
edited April 2022 in Community Q&A

Hello

 

I design a patch array antenna with feed network. Attached its design file.

As a feed network should match the input to 50 ohms, I am looking for a way to measure the feed network impedance at various points in order to verify that the feed network design has been properly performed.

Is there a way to extract the lines impedances using FEKO between various points in the feed network?

Thanks.

 

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Answers

  • Mel
    Mel Altair Community Member
    edited March 2022

    To test the whole feed network, you could remove the patches and at their feed points place ports to ground. Then request S-parameters and include the input port and all the patches' ports to test the feed network.

    For individual sections of lines place a port with a load at the end of the line, and test the input reflection coefficient from the other end.

  • Sem z
    Sem z Altair Community Member
    edited March 2022

    Hello

     

    What typo of port should I create instead of the patch, at its connection point to the feed network?

  • Mel
    Mel Altair Community Member
    edited April 2022

    You can place an edge port or wire port to ground at all the feed points of the patches.

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