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Modeling tuning a cavity
Posted 7 juil. 2014, 19:21 UTC−4 RF & Microwave Engineering, Results & Visualization, Studies & Solvers Version 4.4 1 Reply
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Hi, I am very new to COMSOL, but I think I am getting the hang of the system. I was wondering if anyone might have suggestions as to how I may go about modeling tuning a cylindrical cavity.
I have modeled a cylinder and run an Eigenfrequency and Frequency Domain analysis. I hoped to use the Frequency Domain to model the electric field if the cavity was very close to being tuned but not exactly tuned. I used Eigenfrequency to run a very tight frequency sweep but all that I got was that the electric field = 0 . I used aluminum as the cavity walls and set an impedance boundary condition. Are there any suggestions? Am I missing something that makes this solution realistic?
Thank you,
Enrique
I have modeled a cylinder and run an Eigenfrequency and Frequency Domain analysis. I hoped to use the Frequency Domain to model the electric field if the cavity was very close to being tuned but not exactly tuned. I used Eigenfrequency to run a very tight frequency sweep but all that I got was that the electric field = 0 . I used aluminum as the cavity walls and set an impedance boundary condition. Are there any suggestions? Am I missing something that makes this solution realistic?
Thank you,
Enrique
1 Reply Last Post 8 juil. 2014, 03:18 UTC−4
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Posted:
1 decade ago
Enrique,
different from the eigenfrequency study you must excite the cavity some way in a frequency domain analysis. Just a wild guess, because you aren't talking about any feeding structure for the cavity.
Cheers
Edgar
--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
different from the eigenfrequency study you must excite the cavity some way in a frequency domain analysis. Just a wild guess, because you aren't talking about any feeding structure for the cavity.
Cheers
Edgar
--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com