How to do 2D modelling in HFSS?

Hi,
Is there a way to model two dimensional objects in HFSS. That is creating a 2 dimensional sheet, (that would represent a cross-section of a 3D object for example), then assigning the material for that and then running a simulation for the electric fields over that sheet?
Or is it the case of 3D modelling only?
Thank you.

As far as I know, 2D surfaces can be applied sources or boundary conditions only. HFSS allows materials to be assigned only to 3D objects.

edit: can you be more specific about your problem? if the surface is metallic you can apply suitable boundary conditions or you can make infinitesimal thickness 3D objects. If your surface is dielectric, maybe you can truncate a 3D dielectric with perfectly matched layers (PML)...

lets say i have a pipe buried underground and i would like to illuminate only a cross-section of the model. if i model it as a 3D the extremeties of the pipe will add some scattering, which i want to avoid, since the real life model is a full length pipe. Plus simulating a 3D model will require lots of processing power and time.

Hi, in HFSS you can place a cordinated system anywhere, and export the cut of the plane XY to a 2D model and import it in maxwell 2D extractor and perform your simulation. hope this helps

you can apply periodic boundary conditions (master/slave boundaries) and apply phase matching...