Reply To: Weird band structure in simulation

[Thanh.Nguyen]

The angles between hands in tetrapod are ~105.9 degree, which is similar to my structure. The current mesh is uniform with 20 mesh cells in each dimension. I also tested with 50, but nothing changed. In the image of a first reply, you can see the simulation area where I applied Bloch boundary condition, it should preserve the periodicity. I think the problem is not from broken periodicity because the weird band is not within the band gap. P/S: I tested with different polarizations, as my first guess, it returned the same result