Reply To: Question Regarding Port Size (Using Metal Boundaries)

[Guilin Sun]

The port size can be arbitrarily large but the boundary will cut it for simulation.

For your case it seems the size is already quite large. As long as the mode properties are accurate, you may not need to have the mode profile to be zero at the boundary, since it will need larger size for simulation and thus slow.  Of course you can increase the simulation region to include more space.