<CADFEKO> How to get RCS with PO solver and Aluminium material same time?

Yun_20312
Yun_20312 Altair Community Member
edited November 2023 in Community Q&A

In feko, I need to get RCS form my Tomahwak missile model, by using PO solver(or RL-GO), with aluminium material.

 

image

but I got error message: lossy metallic surfaces are not supported with po.

I know applying MoM could solve, but it takes too long time to do, and I need to use specifically PO or RL-GO.

are there any way I can do it?

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Answers

  • Torben Voigt
    Torben Voigt
    Altair Employee
    edited November 2023

    Hi Yun,

    As the error message says, no lossy metals are supported with PO. In principle, only PEC can be used. 

    However, you should keep in mind that the skin depth of aluminum at 5 GHz is only 1.1597 µm. So if your aluminum faces are thicker than that, you can just as well use PEC, since there are no losses anyway.

    I hope this helps.

    PS: next time please attach the .cfx file (CADFEKO model). The .cfs file (CADFEKO session) cannot be opened without .cfx.

    Best regards,
    Torben

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