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    • Rahul Ponginan

      Please click here for a short but important announcement   03/26/17

      Dear Users Our Commercial and Academic users around the world can use these same forums here as before i.e. the Altair Support Forum , Commercial users from India with solver queries can go to the Solver Forum for India Commercial Users , Academic Users from India and AOC India Participants are requested to go to the Forum for India Academic Users and AOC India Participants , We will be tending to all queries in all the forums promptly as before, thank you for your understanding. 
no name

feko warning

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HI FEKO Expert,


I would like to ask FEKO team about the warning that I received when I running the near field request. I am doing dipole antenna using wire port. What does the warning means so that I can make

inprovement on my model to achieve the results. I have attached the warning image with this email. Hope to hear from you soon to help me encounter this problem.


below are my warning details:


Warning 81: singular field on the axis of a segment

Warning 2340: No further output of warnings and hints





Thank you.


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Hello no name,


This warning is similar to:


When you request the near fields, one or more of the points are on the axis of the segment. Since the segment has current flowing on it, you are sampling on the source and the field is singular.


You can resolve the problem by simply not sampling on the segments (Z-axis in your example), but rather sample some distance away from the segment axes. Don't sample too close to the segment if you want very accurate results, since the field will be near singular close to the segment.


Warning 2340 will go away once you have modified the model to avoid Warning 81.

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