Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.
Phononic Bandgap Mismatch and Incorrect Modes
Posted 18 mag 2023, 17:49 GMT-4 Structural Mechanics Version 6.1 0 Replies
Please login with a confirmed email address before reporting spam
Hello,
I've run into an issue with my phononic bandgap calculation that I was hoping someone may be able to help with. I have been trying to reproduce the results from a paper, https://opg.optica.org/oe/fulltext.cfm?uri=oe-19-6-5658&id=210757 , but have run into an odd issue. My phononic bandgap matches well until the frequency range 2.7-3.1GHz. In this region I get mechanical modes like the one in the attached picture. I don't think this mode should exist because it would cause a shift in the lattice every period. Does anyone know how to fix this or why it is happening?
Best, Christer
Attachments:
Hello Christopher Everly
Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.
If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.