I am simulating an antenna structure in the RF module. Unfortunately, due to 3 dimensions of variability, no 2D models are suitable. Therefore, I am using a 3D solver.
I have an impedance sheet covering a radial waveguide that produces a leaky wave. The impedance sheet has both permittivity and permeability tensors. The simulation is cleanest (i.e. smallest and produces best results) with the transition boundary condition. However, though I can input an anisotropic permittivity, the permeability only allows constant inputs.
Is there a module that has the capability to include permeability tensors in a transition boundary condition? I have not found one yet, with some fairly deep searching. Sans that, can a custom boundary condition be written that allows this?
Other attempts I have tried are making an actual 3D bulk material in place of the transition boundary. This is problematic because the material must be very thin, which greatly complicates the simulation. I am unable to get a thin enough layer.
An alternate approach is to define a current source that is dependant upon impingent fields. However, this requires both electric and magnetic current sources, and as of right now, I havent found a way to implement both on the same boundary.
Thank you,
Jason
I have an impedance sheet covering a radial waveguide that produces a leaky wave. The impedance sheet has both permittivity and permeability tensors. The simulation is cleanest (i.e. smallest and produces best results) with the transition boundary condition. However, though I can input an anisotropic permittivity, the permeability only allows constant inputs.
Is there a module that has the capability to include permeability tensors in a transition boundary condition? I have not found one yet, with some fairly deep searching. Sans that, can a custom boundary condition be written that allows this?
Other attempts I have tried are making an actual 3D bulk material in place of the transition boundary. This is problematic because the material must be very thin, which greatly complicates the simulation. I am unable to get a thin enough layer.
An alternate approach is to define a current source that is dependant upon impingent fields. However, this requires both electric and magnetic current sources, and as of right now, I havent found a way to implement both on the same boundary.
Thank you,
Jason