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.

grating resonance structure, reflection greater than 100%

Please login with a confirmed email address before reporting spam

Hi, I am simulating a grating resonant structure, I use the floquent peridoic condition and PORT 1 input TM wave. The incident angle is 45[degree]. But the transmittance and reflection(abs(ewfd.S11)^2) in port 1 give me really puzzling result that some part of it less than 0% and some part of it greater than 100%.! Is there anything wrong with my boundary condition?

0 Replies Last Post Apr 13, 2020, 5:37 AM EDT
COMSOL Moderator

Hello Kaidi Xu

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.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.