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Momentum vs FEM: what's the problem ?

Question asked by Fresnel on Aug 17, 2018
Latest reply on Sep 19, 2018 by Riju

Hello,

 

I would like to apologize for this question since I am quite it's a recurring question...

I design an antenna (J-dipole) using Momentum: results are great...

However, I would like to check the simulation with FEM to take account of finite FR4 substrate...

1) with the default options, results with FEM are odd: the question is how to set the FEM properly? I read from documentation and it is not very clear...

2) one FEM siting will work, how to "cut" the substrate ? With 3D visualisation tool, the FR4 layer is always the same size of simulation_box...

Thanks for your reply.

F.

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