Modeling EM Wave Coupling to Metal Particles without RF Module?

  • Thread starter Thread starter rr00053
  • Start date Start date
  • Tags Tags
    Comsol Modeling
Click For Summary

Discussion Overview

The discussion revolves around modeling electromagnetic wave interactions with metal particles and wave propagation through metallic strips using different software modules. Participants are exploring whether these simulations can be conducted without access to the RF module, focusing on the capabilities of the electromagnetics module instead.

Discussion Character

  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • One participant inquires about modeling EM wave interactions with metal without the RF module due to organizational constraints.
  • Another participant describes their attempt to design a metallic strip for RF waves but encounters issues when using copper as a subdomain, noting that the wave propagates only when air is used with a perfect electric conductor boundary condition.
  • Several participants discuss the distinction between the electromagnetics module and the RF module, with some expressing uncertainty about their capabilities.
  • One participant mentions that they have multiple subdivisions in their electromagnetics module, questioning which specific mode to use for their modeling needs.
  • Another participant suggests that the solution to their problems may lie within the 3D electromagnetic wave mode of the electromagnetics module, which they believe is synonymous with the RF module.
  • Some participants express a desire for guidance on how to effectively use the electromagnetics module for their specific applications.

Areas of Agreement / Disagreement

Participants generally agree that the RF module is beneficial for modeling EM wave interactions, but there is no consensus on whether the electromagnetics module can adequately replace it. Multiple competing views remain regarding the capabilities of the different modules and their specific applications.

Contextual Notes

Participants express uncertainty about the specific functionalities of the electromagnetics module versus the RF module, and there are unresolved questions about the effectiveness of their modeling approaches. Some participants are awaiting responses from COMSOL regarding trial access to the RF module.

Who May Find This Useful

Individuals interested in modeling electromagnetic wave interactions, particularly those exploring software capabilities for simulations in the absence of specific modules.

rr00053
Messages
37
Reaction score
0
Hi,

I want to model the em wave interaction to a metal ...can i do this without the RF module? I want to model the coupling of em waves to metal particles, so is it possilbe to do without RF module since my organisation have not subscribed for RF module...
pls reply
 
Engineering news on Phys.org


I too having a similar problem.I want to design a 100umX2um cross section strip for an RF wave to pass through.I want that subdomain to be copper.But when i give the subdomain as copper the wave is not going.But when i use air with perfect electric conductor as boundary condition the wave is going through.That is basically modelling a waveguide.But i want to model a metallic strip for the wave to go through. The application mode i used is 3D electromagnetic waves.Can someone please help me..?
 


hi timepasser...Is this 3D electromagnetic wave mode in RF module or any other module...unfortunately i don't have RF module...please reply...
 
I am trying to do in electromagnetics module. Is there a separate rf module to do such stuff. If so please tell me rr00053.
 
I have heard that you can do these kind of modelling in RF module...but since i dnt have RF module i don't knw much about that...but i guess that we can do this using RF module...

Can you please explain me how you did this in electromagnetics module...so that I can also try it ...
 
Do you have electromagnetics module?
 
What I tried to do is : First I created a metallic strip and then defined it as copper in the subdomain settings.One boundary I set as input port with the wave excitation at that boundary.There is a column where you can select this.The boundary opposite t this I set as port alsobut no wave excitation here.The other boundaries you tr with perfeect electric conductor boundzary setting,or scattering boundary or electric filed.All are giving identica results.But the problem I am facing is that I think the wave is not going through after a liitle disatnce into the strip.You can see this fromthe power flow plot . the power goes to zero from around 1e10 to 0 soon after the wave enters the metal. I don't know whyt this is happening.Do you have any idea.If so tell me.Also tell me whether there is a separate rf module and a separate electromagnetics module.
 
Hi timepasser... In the electromagnetics module which am having I have 4 subdivisions...namely conductive media DC, electrostatics, magnetostatics,
AC power electromagnetics...
I which of the above modules did you try out this example...
please reply

and about the RF module ..yes comsol do offer a seperateRF module which we have to buy it seperatly...unfortunately my organisation doesn't have that module and we have requested the COMSOL to give a free trial period for 2 weeks...we didnt get any response as of now...and i think both of us are trying to find out something in similar though nt exactly same...so please do keep in touch ...
 
Dear rr00053 I understood your problem. You are trying to model it not in electromagnetics module but in electromagnetics application mode.Both are different .I have a different electromagnetics module like Mems module which is different from the electromagnetics application mode you are talking about. In the electromagnetics module you have a separate mode called 3d electromagnetics wave mode where you can do your stuff.I think the solution to both of our problems is in that module only.I don't hink you will find a olution to your problem in the electromagnetics mode you are talking about. The electromagnetics module I am talking abput is just a different name for the rf module you are talking about. I hope I am clear. I am sorry for you because unless you have electromagnetics module/rf module i don't think there is a solution to your problem.
 
  • #10
Dear Timepasser... thanks for helping me...i am trying to get that electromagenetic application mode...thankyou very much for that useful information...
 
  • #11
Dear Timepasser...I have ordered for the RF module/ electromagenetic module which we were discussing about...I may get it next week... did you solve the problem which you were facing? Please reply
 
  • #12
Hi timepasser,
I am getting back to you for the old problem which u did? I now have the 3D electromagnetics module... so can you help me how you tackled to study the propagation of wave through the metal strip...that would be very helpful to me...
Please do reply..
Thanks
 

Similar threads

  • · Replies 28 ·
Replies
28
Views
6K
Replies
5
Views
4K
  • · Replies 73 ·
3
Replies
73
Views
9K
  • · Replies 46 ·
2
Replies
46
Views
4K
  • · Replies 15 ·
Replies
15
Views
5K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 6 ·
Replies
6
Views
2K
Replies
5
Views
3K