Ansys Maxwell: Boundary definition

[Panacea]

Hello,

I am trying to find a Magnetostatic(3D) solution for my design. My design consist of a coil embedded in Ceramic material developed by LTCC technology. I am below queries:
1. Is it important to define a material"Insulating"? How it will affect the Inductance of the system and the Magnetic flux density(B)? Is there a difference in B for AC and DC excitation (w.r.t. Maxwell Simulation)?
2.Since the coil is conducting and the ceramic insulting, i am getting error "Boundary 'Insulating1' and Excitation 'Current1' overlap."
2. If i don't mention LTCC as 'Insulating' in Boundary, i receive"mfSolver Failed" error or the simulation results are "nan".

Please help me with these errors. Thank you !

P.S: I have already set "material override" in design setting.

 

[Aaron Barnard]

1. It is important to define the material as 'Insulating' in order to simulate the Magnetic flux density and inductance of your system accurately. The Magnetic flux density (B) for AC and DC excitation should be similar, however there may be slight differences due to the presence of eddy currents in the AC case.
2. The error could be due to an overlap between the current excitation and the insulating material. To fix this, you can try using a non-overlapping region for your current excitation. Alternatively, you can try using a different material for the ceramic LTCC, such as a dielectric material.
3. If you are receiving the "mfSolver Failed" error, it might be due to an instability in the solver caused by the combination of materials you have defined. You can try changing the solver settings or the combination of materials you are using.