Menu

Discussion Forum

New Discussion
Filtern

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 The information provided may be out of date.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.

A simple electromagnetic structure convergance

Posted 28.07.2014, 16:15 GMT-4 Low-Frequency Electromagnetics, RF & Microwave Engineering, Wave Optics Version 4.1 0 Replies

Mohammad Parvinnezhad Hokmabadi
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Hi everybody,
I am doing a simulation of a simple electromagnetic structure in Comsol 4.1, RF module.
It is a Si slab in air. It gives an error, immediately.
Here is the error:

Failed to find a solution for the initial parameter.
Very ill-conditioned preconditioner.
The relative residual is more than 1000 times larger than the relative tolerance.
Returned solution has not converged.

I also attached the structure.
I appreciate if somebody answers this issue.

Thanks,
Mohammad

Attachments:

0 Replies Last Post 28.07.2014, 16:15 GMT-4
COMSOL Moderator

Hello Mohammad Parvinnezhad Hokmabadi

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.

Suggested Content