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mode analysis of a waveguide
Posted 2013年6月3日 GMT-4 12:13 RF & Microwave Engineering Version 5.1 2 Replies
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Dear all,
I'm trying to reproduce the results which is on www.comsol.com/cd/direct/conf/2012/papers/11017/11847_frezza_presentation.pdf
(Comsol conference 2011, page 7, symmetric case, neff).
Could you let me know how I should set the condisions of the "mode analysis"? For instance, "desired number of mode" and "search for modes around" in "study setting"...
Or please let me know the tips to set these parameters.
Yours cincerely
Yutaro
I'm trying to reproduce the results which is on www.comsol.com/cd/direct/conf/2012/papers/11017/11847_frezza_presentation.pdf
(Comsol conference 2011, page 7, symmetric case, neff).
Could you let me know how I should set the condisions of the "mode analysis"? For instance, "desired number of mode" and "search for modes around" in "study setting"...
Or please let me know the tips to set these parameters.
Yours cincerely
Yutaro
2 Replies Last Post 2015年8月25日 GMT-4 11:52
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Posted:
1 decade ago
Dear Yutaro,
please have a look at the model stress_optical.mph, it uses a similar geometry and the settings
for the mode analysis should be similar.
You can find the model by searching for [stress optical] without brackets in the model library.
Best regards,
Sven
please have a look at the model stress_optical.mph, it uses a similar geometry and the settings
for the mode analysis should be similar.
You can find the model by searching for [stress optical] without brackets in the model library.
Best regards,
Sven
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Posted:
9 years ago
Hi Sven,
I am making RF design using comsol, I am also using comsol from quit a long time now. I finished my design and verified my results but it is totally different from my theoretical results. My device should work like non-reciprocal but I couldn't see any non-reciprocal effect in s21 or s12 parameter. Please have a look at it if you gets time.
I have attached a model and related paper here.
I have some other questions too:
1.I extract the s-parameter and that file have coordinates and s-parameter. My question is how can i make sure s-parameter (s12, s21) which I got directly using comsol is correct or do I need to find the boundary point in that extract file and use mat lab to plot the curve for (s12, s21).
2. Does my result in comsol plot for (s12, s21) shows me the right graph, do I need to use matlab.
3. What should I do to improve my design. I make exactly same design as I made in lab and measure it theoretically.
4. When we try to plot s-parameter using comsol does it plot s-parameter on boundary we selected or some thing different.
I am making RF design using comsol, I am also using comsol from quit a long time now. I finished my design and verified my results but it is totally different from my theoretical results. My device should work like non-reciprocal but I couldn't see any non-reciprocal effect in s21 or s12 parameter. Please have a look at it if you gets time.
I have attached a model and related paper here.
I have some other questions too:
1.I extract the s-parameter and that file have coordinates and s-parameter. My question is how can i make sure s-parameter (s12, s21) which I got directly using comsol is correct or do I need to find the boundary point in that extract file and use mat lab to plot the curve for (s12, s21).
2. Does my result in comsol plot for (s12, s21) shows me the right graph, do I need to use matlab.
3. What should I do to improve my design. I make exactly same design as I made in lab and measure it theoretically.
4. When we try to plot s-parameter using comsol does it plot s-parameter on boundary we selected or some thing different.
Attachments: