Ansys Learning Forum Forums Discuss Simulation Photonics Different Farfield Results 2D vs 3D Simulation Reply To: Different Farfield Results 2D vs 3D Simulation

Guilin Sun
Ansys Employee

Without details of your structure, I can just give you some general feedbacks.

2D means the 3rd dimension is infinitely long, without and variation. Does your 3D simulation enforce this behaviour? if not, it is normal you get different results.