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Modelling an electromagnetic dipole

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Hello,

I'm going to model and electromagnetic dipole with two coils and an iron yoke.
I try to use the AC/DC mf module, but it is not clear to me how to fix the current direction in the coil. I mean, if I use "external current density" node, the current does not follow the coil has it has the direction I set in the node.

If I use the "single turn coil" node I should two wires: one for the boundary feed and the other one for the ground, which is something I don't want to do. If I use the gap feed option I have a solution for very high current (>1.5 A/mm^2), for lower current the solution is not convergent.

Propably I'm following the wrong approach, do you have some advices?
Would it be better to use the AC/DC mef module?
There are some exemples I can look at?

Thank you

0 Replies Last Post 4 dic 2014, 12:43 GMT-5
COMSOL Moderator

Hello Francesco Schillaci

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