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.
S- parameter for slab waveguide
Posted Dec 12, 2011, 11:38 p.m. EST 1 Reply
Please login with a confirmed email address before reporting spam
I was using RF modual to simulate the S-parameter for the slab waveguide.
Unfortunately, there is a sharp jump in the figure of the S21.
I believe that this is not a true physicsical result, but I can not figure out why?
Can anyone help me to point out where is wrong for my set up?
Thanks very much.
Unfortunately, there is a sharp jump in the figure of the S21.
I believe that this is not a true physicsical result, but I can not figure out why?
Can anyone help me to point out where is wrong for my set up?
Thanks very much.
Attachments:
1 Reply Last Post Dec 13, 2011, 2:44 a.m. EST
Please login with a confirmed email address before reporting spam
Posted:
1 decade ago
Hi
What I notice is that you have a mesh element per result period, this is far too coarse, you should have at least 3 (2nd order shape function, as by default) elements per wavelength IN THE MATERIAL
Try a finer mesh until you resolve the waves correctly, RF demands a very fine mesh and a looong time to wait for the results, hence it really worth to "think your model carefully and design it with symmetries and just the required material
--
Good luck
Ivar
What I notice is that you have a mesh element per result period, this is far too coarse, you should have at least 3 (2nd order shape function, as by default) elements per wavelength IN THE MATERIAL
Try a finer mesh until you resolve the waves correctly, RF demands a very fine mesh and a looong time to wait for the results, hence it really worth to "think your model carefully and design it with symmetries and just the required material
--
Good luck
Ivar