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Filtra

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Some problem about Numeric of Port in RF module

Posted 12 ott 2011, 07:54 GMT-4 RF & Microwave Engineering Version 4.2 1 Reply

ZL Huang
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I learned with the "waveguide_adapter" in model liberary, so the problem below is based on it.
FIrst, I don't know the meaning of "search for modes around" in setting of "Boundary Mode Analysis". In the waveguide_adapter model, it is set to be 50 and get the desired solution. However, when I change it to 1 or 10, the "Boundary Mode Analysis" can not find a real model. I wonder how large number should I choice when I calculate for an other problem.

Another question is that if I set "Desired number of modes" to be more than one, which means I calculate for many modes. Then I want one of the model calculated to be set as the port, how can I sepcific the one?
(for example, in the attached file, two of the mode in rectangle side was computed, and it choice one to calculated for propagate, however I want to use the other mode of rectangle side to calculated)


Thanks for your attention. ^_^
1 Reply Last Post 20 dic 2012, 00:44 GMT-5
COMSOL Moderator

Hello ZL Huang

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Hitesh Ghadiya
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Posted: 1 decade ago 20 dic 2012, 00:44 GMT-5
search for mode around we have to give beta value.
search for mode around we have to give beta value.

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