Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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.

Exploiting symmetries while using Floquet boundary conditions

Please login with a confirmed email address before reporting spam

Hello!

I have a periodic structure which utilizes Floquet BC's. The cubic unit cell has uniaxial 4-fold symmetry about the vertical y-axis. I am using a periodic port to launch a TM mode wave, polarized along the horizontal z-axis, and would like to utilize a PMC down the center of the unit cell (xy-plane) to cut the computational domain in half.

However, it is evident that by removing 1/2 of the computation domain I also remove the paired boundary for the Floquet BC. In other words, the PMC does not appropriately mirror the Floquet BC, since it does not track the phase advance.

Any thoughts on how--if at all--to exploit symmetries while still using Floquet BC's?

(Using v4.3b and the new Wave Optics module, but this problem applies to RF module just the same)


1 Reply Last Post 10 ott 2016, 04:23 GMT-4
COMSOL Moderator

Hello Bryan Adomanis

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.


Please login with a confirmed email address before reporting spam

Posted: 8 years ago 10 ott 2016, 04:23 GMT-4
I am having the exact same problem. Any progress?
I am having the exact same problem. Any progress?

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.