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COMSOL resonance freq for rf coil

Posted Jul 14, 2010, 3:42 a.m. EDT 2 Replies

John Lu
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I am fairly new to the COMSOL software. For now, I am currently running a simple RF loop coil simulation in version 3.5 order to study EM fields. After creating an SBC region around my coil and then a PML around that, I proceeded to add in a lumped port in the coil (I added a 1 V voltage supply). Essentially, i wanted to scan at what frequency the impedance at this port will be at a maximum, which should indicate the coil's resonance frequency. I have done this with FDTD software in the past but not FEM. Is there any way to plot the impedance through the port as a function of this frequency? I hope it's not too obvious, but I just can't seem to find it. If not, is there any way to do this is version 4.0 of COMSOL? Currently I am using a parametric solver and have set a range of frequency to scan.
2 Replies Last Post Jul 14, 2010, 4:58 a.m. EDT
Ivar KJELBERG COMSOL Multiphysics(r) fan, retired, former "Senior Expert" at CSEM SA (CH)
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Posted: 1 decade ago Jul 14, 2010, 4:52 a.m. EDT
Hi

check the doc, there is an example in the 3.5, but as I'm on holidays I do not have eveything with me ;)
there are always afew places to look:
1) do an indexed search on the pdf files
2) check (search) the web Knowledge base , the model exchange/model library and the Forum

Good luck
Ivar
Hi check the doc, there is an example in the 3.5, but as I'm on holidays I do not have eveything with me ;) there are always afew places to look: 1) do an indexed search on the pdf files 2) check (search) the web Knowledge base , the model exchange/model library and the Forum Good luck Ivar
John Lu
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Posted: 1 decade ago Jul 14, 2010, 4:58 a.m. EDT
Unfortunately, I have been referring to a COMSOL tutorial pdfs/forums and the directions states the possibility of doing this graph, though it does not say how, which is why I made the original post. But I'll continue to look. Thank you.
Unfortunately, I have been referring to a COMSOL tutorial pdfs/forums and the directions states the possibility of doing this graph, though it does not say how, which is why I made the original post. But I'll continue to look. Thank you.

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