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Ansys Learning Forum › Forums › Discuss Simulation › Photonics › Arbitrary sign for eigen mode › Reply To: Arbitrary sign for eigen mode

March 22, 2024 at 6:10 pm
amitrotem2
Subscriber

 

I think you get small values because you moved the ports away from the blocks, or didn't flip their direction.

The original code show sign flips on S matrix values the has magnitude close to 1

The small shifts in Y are a sure way to see the issue of the sign flip. You can also see these with larger Y shifts.

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