Does anybody know how to calculate the inductance of a segment of parallel plate transmission line in Maxwell? Ideally, we'd like to setup a current density excitation on a planar segment of the transmission line and then integrate over the magnetic field energy in the volume. This, however, does not seem possible without turning the transmission line into a 3d object. That being said, even if we do make the transmission line a 3D object, the current excitation seems to need to originate from the boundary of the simulation volume, which is not possible in this case.

TLDR; does anybody know an elegant approach to calculating inductance in ANSYS Maxwell?