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Misleading advice in tutorial
Posted 29 mars 2023, 07:43 UTC−4 Wave Optics Version 5.6 3 Replies
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Hello, I would like to propose a small correction to your tutorial - it is about model Frequency Selective Surface, Periodic Complementary Split Ring Resonator (Application ID: 78011), https://www.comsol.com/model/frequency-selective-surface-periodic-complementary-split-ring-resonator-78011
I believe, PMLs on both sides are not needed at all there - both ports will deal with it. Here is how one can modify the current model to check my assumption:
- Disable Periodic conditions 2 and 4 in Electromagnetic Waves, Frequency Domain.
- In the main node, Electromagnetic Waves, Frequency Domain, uncheck domains 1 and 5 (which are currently PML). Then the remaining domain selection list will be just 2, 3, and 4.
- For Port 1 and Port 2 in Electromagnetic Waves, Frequency Domain, uncheck Activate slit condition on interior port. This is because these ports are no longer internal - they are at external boundaries of the simulation domain.
That's it, one can run the same studies - with smaller and a bit faster model :) Otherwise - thanks a lot for your tutorials and demos, it really helps a lot!
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Hello Vladimir,
This Discussion Forum is intended primarily for discussions among customers. To reach out to COMSOL with feedback and/or questions, please email support@comsol.com .
Best regards,
Jeff
-------------------Jeff Hiller
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Hello Vladimir,
That said, thank you for your suggestions. This model is a tutorial, guiding how to use the domain-backed ports combined with PMLs. It also shows how to set PMLs for oblique incidence. It works as a template making a model addressing potential diffractions. We will look into improving the documentation for this model.
Best regards,
Magnus
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Hello Jeff and Magnus,
Although this is not the right place to give a feedback to COMSOL, I am very surprised how fast I got feedbacks from you :) And you are right - your tutorial models are used as templates, so a big thank you for doing these tutorials!