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Simulating magnetic field of an RF Coplanar Waveguide

Posted Jun 14, 2024, 12:12 p.m. EDT Electromagnetics, RF & Microwave Engineering, Modeling Workflow Version 6.2 3 Replies

Omar Ali
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Hello,

I hope all is well. I was wondering if someone could help me with simulating the magnetic field due to exciting a coplaner waveguide in the RF module. I added magnetic fields Physics module and a stationary solver step, but I cannot get a plot of the magnetic field

3 Replies Last Post Jun 14, 2024, 2:01 p.m. EDT
Robert Koslover Certified Consultant
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Posted: 7 months ago Jun 14, 2024, 1:08 p.m. EDT

There are several coplaner waveguide (cpw) examples in the Comsol Application Library, which make use of the RF module. The examples already compute electric and magnetic fields. Not sure why you would want to add another module. Perhaps you should post your .mph file to the forum?

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Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
There are several coplaner waveguide (cpw) examples in the Comsol Application Library, which make use of the RF module. The examples already compute electric and magnetic fields. Not sure why you would want to add another module. Perhaps you should post your .mph file to the forum?
Omar Ali
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Posted: 7 months ago Jun 14, 2024, 1:36 p.m. EDT

There are several coplaner waveguide (cpw) examples in the Comsol Application Library, which make use of the RF module. The examples already compute electric and magnetic fields. Not sure why you would want to add another module. Perhaps you should post your .mph file to the forum?

Hello,

Thanks so much for your response. I am only able to upload geometry due to file size, but these examples only compute electeric field. I am interested in the magnetic field. I appreciate your help a lot.

Omar

>There are several coplaner waveguide (cpw) examples in the Comsol Application Library, which make use of the RF module. The examples already compute electric and magnetic fields. Not sure why you would want to add another module. Perhaps you should post your .mph file to the forum? > > Hello, Thanks so much for your response. I am only able to upload geometry due to file size, but these examples only compute electeric field. I am interested in the magnetic field. I appreciate your help a lot. Omar

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Robert Koslover Certified Consultant
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Posted: 7 months ago Jun 14, 2024, 2:01 p.m. EDT
Updated: 7 months ago Jun 14, 2024, 2:11 p.m. EDT

As Comsol suggests: "If your MPH-files are large, you can greatly reduce their size by selecting Clear All Built Meshes from the Mesh menu and Clear All Solutions from the Study menu, and then saving your MPH-files." Please try that.

Also, if/wherever you may be plotting quanties like emw.Ex, emw.Ey, emw.Ez, or emw.normE, consider simply replacing those by emw.Hx, emw.Hy, emw.Hz, or emw.normH.

You can also select these from various post-processing menus. E.g., see image attached, from one of the Comsol-supplied cpw examples I mentioned.

-------------------
Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
As Comsol suggests: "If your MPH-files are large, you can greatly reduce their size by selecting Clear All Built Meshes from the Mesh menu and Clear All Solutions from the Study menu, and then saving your MPH-files." Please try that. Also, if/wherever you may be plotting quanties like emw.Ex, emw.Ey, emw.Ez, or emw.normE, consider simply replacing those by emw.Hx, emw.Hy, emw.Hz, or emw.normH. You can also select these from various post-processing menus. E.g., see image attached, from one of the Comsol-supplied cpw examples I mentioned.

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