Modeling dielectric lens in FEKO

shan25_22144
shan25_22144 Altair Community Member
edited November 2020 in Community Q&A

Hi, 

 

I am tried simulating an dielectric lens (attached )  using varies solvers in FEKO.  When I increased the diameter of the lens to be greater than 15 lambda I run into memory issues (I have a 256GB RAM computer), out of core computation also failed. I don't want to use RLGO as it is not very accurate. I tried symmetric planes in FEM simulation but no success.  Can you please  suggest some solution for this problem.  I have a FEKO university license, when I run FDTD solver I get this error message 'The voxel mesh is currently limited to less than 2 000 000 000 voxels' is there a possibility to use symmetric planes in FDTD mesh?

 

Thanks!

 

Manu

Unable to find an attachment - read this blog

Tagged:

Welcome!

It looks like you're new here. Sign in or register to get started.

Answers

  • JIF
    JIF
    Altair Employee
    edited June 2018

    Hello shan25,

     

    I would try MLFMM (without stabilisation at first)  with two planes of symmetry (even though symmetry won't help much for the MLFMM, since it will fall back to geometrical symmetry). I did notice that your symmetry planes are not defined correctly for your source - you need to fix that (the one should be a magnetic plane).

     

    I can't think of any other approximations to use, if you don't want to use RL-GO.

     

    The voxel mesh limit is not just for students and symmetry is supported for FDTD.

  • shan25_22144
    shan25_22144 Altair Community Member
    edited June 2018

    Hello Jif

     

    Thanks for your reply. Can you let me know how to define symmetry planes in FDTD. When I activate FDTD solver in solver settings, symmetry button in solve/run tab gets disabled.  

     

     

  • JIF
    JIF
    Altair Employee
    edited July 2018

    Hi
    It is disabled because symmetry is not currently supported for FDTD.

Welcome!

It looks like you're new here. Sign in or register to get started.

Welcome!

It looks like you're new here. Sign in or register to get started.