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characteristic mode analysis on dielectric object

User: "Altair Forum User"
Altair Forum User
Altair Employee
Updated by Altair Forum User

Hi,

 I am trying to perform a characteristic mode analysis on a dielectric cube but I am getting the error below:

 ERROR 37590: The characteristic modes that were calculated are all non-radiating

 

Do you know how to resolve this problem?

 

Regards,

 Constantine

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    User: "Wilco Strydom"
    Wilco Strydom
    New Altair Community Member
    Updated by Wilco Strydom

    Hi Constantine,

     

    Performing CMA on a model with Surface Equivalence results in a combination of real and fictitious modes.
    Fictitious modes are identified and filtered out by verifying the modal radiation condition, since these modes are non radiating.
    Internally we increase the number of modes calculated, but for some models there will be very many fictitious modes near resonance and the solver will terminate with an error if at any frequency it is unable to give at least one radiating mode.

     

    You can simply increase the number of modes requested and rerun the solver.

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