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Comsol with Matlab: How to save data

Posted 2011年9月1日 GMT-4 09:55 5 Replies

Jiaming Hao
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Hello,

I use Comsol (v3.5a) with matlab to do frequency sweep. The results (for example, S-parameters, S11) can be plotted in Matlab paint window using some postplot commands. But I would like to save the data in a file and plot them using other software like OrignPro. I try many times but couldn't fix it. As you know, if the results are plotted in Comsol paint window, they could be saved in a ASCII file. But in Matlab paint window, we cannot do that.
5 Replies Last Post 2011年9月7日 GMT-4 04:46
Jiaming Hao
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Posted: 1 decade ago 2011年9月5日 GMT-4 10:11
Does there anyone know how to fix this? Thank you very much in advance!

Does there anyone know how to fix this? Thank you very much in advance!
Rafal Piotuch
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Posted: 1 decade ago 2011年9月6日 GMT-4 04:41
Hi, I think that after solving a problem data is already saved in a fem. In my opinion you should check the Matlab Interface Guide for the proper syntax.

Hoping this helps, Rafał Piotuch.
Hi, I think that after solving a problem data is already saved in a fem. In my opinion you should check the Matlab Interface Guide for the proper syntax. Hoping this helps, Rafał Piotuch.
Jiaming Hao
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Posted: 1 decade ago 2011年9月6日 GMT-4 06:46
Hi, Rafal,

Thank you so much for your reply. I was really try to do that, but could not find such corresponding syntax. Anyway, I would try again. Thanks.

Best regards,


Hi, I think that after solving a problem data is already saved in a fem. In my opinion you should check the Matlab Interface Guide for the proper syntax.

Hoping this helps, Rafał Piotuch.


Hi, Rafal, Thank you so much for your reply. I was really try to do that, but could not find such corresponding syntax. Anyway, I would try again. Thanks. Best regards, [QUOTE] Hi, I think that after solving a problem data is already saved in a fem. In my opinion you should check the Matlab Interface Guide for the proper syntax. Hoping this helps, Rafał Piotuch. [/QUOTE]
Rafal Piotuch
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Posted: 1 decade ago 2011年9月7日 GMT-4 01:50
Hi - I have found it:
www.comsol.com/community/forums/3-5a/thread/20292/

Best regards,
RP
Hi - I have found it: http://www.comsol.com/community/forums/3-5a/thread/20292/ Best regards, RP
Jiaming Hao
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Posted: 1 decade ago 2011年9月7日 GMT-4 04:46
Thank you so much for your nice reply. I just found an alternative solution for my case. I attached my sample code here also.
------------------------------------------------------
S21 = [ ];

data = postglobaleval(fem,{'S21_rfwh'});
Frequency = data.x;
S21 = cat(2,S21, data.y);
-------------------------------------------------------

Here, S21 is S-parameters, it could be also any globally defined expression.



Hi - I have found it:
www.comsol.com/community/forums/3-5a/thread/20292/

Best regards,
RP


Thank you so much for your nice reply. I just found an alternative solution for my case. I attached my sample code here also. ------------------------------------------------------ S21 = [ ]; data = postglobaleval(fem,{'S21_rfwh'}); Frequency = data.x; S21 = cat(2,S21, data.y); ------------------------------------------------------- Here, S21 is S-parameters, it could be also any globally defined expression. [QUOTE] Hi - I have found it: http://www.comsol.com/community/forums/3-5a/thread/20292/ Best regards, RP [/QUOTE]

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