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Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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plane wave and scattering boundary

Posted 2011年3月30日 GMT-4 13:24 RF & Microwave Engineering, Parameters, Variables, & Functions Version 4.0, Version 4.0a, Version 4.2 1 Reply

José María Rico García
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Hello

I'm beginner with comsol... so maybe my question is easy...


I want generate a wave plane, my structure is a 3D cube, in the top I have a scattering boundary condition and the underside is conected with a PML structure, the others sides have PEC condition.

I choose the plane wave in scattering boundary condition, also I have choosed the polarization Exo--> 0 Eyo--> 1 and Ezo-->0
furthermore, I choose Kdirz as -1 , kdirx and Kdiry as 0...
where do I must write Ez=exp(i*ewr.k0*z)???

And HOW DO I SEE THE COMSOL INTERNAL VARIABLES??

for example ewr.k0

thanks for your attention

1 Reply Last Post 2011年8月15日 GMT-4 08:05
COMSOL Moderator

Hello José María Rico García

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Gary Zaiats
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Posted: 1 decade ago 2011年8月15日 GMT-4 08:05
You need to use "port boundary conditions" to identify wave equations.
Try doing "plasmonic wire grating" tutorial. It explains how to do it. I don't know how to find the internal variables. I was told by a friend that there was a list of variables in prev. versions (before 3.5) but I can't find it.
You need to use "port boundary conditions" to identify wave equations. Try doing "plasmonic wire grating" tutorial. It explains how to do it. I don't know how to find the internal variables. I was told by a friend that there was a list of variables in prev. versions (before 3.5) but I can't find it.

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