mode doesn’t converge in EME?

- February 18, 2022 at 5:06 pm
  
  iqnlo
  Subscriber
  
  Hi there
  I'm doing mode convergence test for my simulation. But I find a weird thing that my mode convergence test result doesn't converge even I used 60 modes. Below is the plot. May I ask what happened? Thank you!
  S21^2:
- February 18, 2022 at 7:28 pm
  
  Guilin Sun
  Ansys Employee
  
  Not sure what kind of device you are simulating. From your screenshots, it is obviously that the number of modes do not converge. This can happen when one or more group needs more number of modes. It may also mean that the cell length is too large causing the modes change rapidly. Please check the diagnoses, and get some information here:
  EME Convergence Testing - An Intuitive Approach
  Convergence testing process for EME simulations
  EME Solver analysis window overview
  Convergence Testing - Error Diagnostics - Diagnostics