Free software for microwave simulation?

In summary, free software for microwave simulation is widely available and can be a valuable tool for engineers and researchers in the field. These programs use advanced algorithms and models to accurately simulate the behavior of electromagnetic waves in microwave systems, allowing for more efficient and cost-effective development of new technologies. Some popular options include Microwave Studio, CST Studio Suite, and OpenEMS, all of which offer a range of features and capabilities for various simulation needs. Additionally, many of these software programs have active user communities and support forums, providing resources and assistance for those looking to utilize them in their work.
  • #1
Ulysees
516
0
Anyone know some decent free software for simulating microwaves in full detail? Ideally I'd like to input autocad drawings to it, of metallic structures, and see the power distribution in 3D.
 
Engineering news on Phys.org
  • #2
I am working on a full-wave time-domain microwave simulator - the emGine Environment. You can give it a try:

http://www.petr-lorenz.com/emgine

Import from autocad is, however, not implement for now. But, since the emGine GUI is an open source project, you can try to connect the GUI to existing libraries.
 
  • #3
That's cool!

Can I ask you a couple of questions about the tlm method.

1. Do you make the grid finer at boundaries?

2. Will it give physically correct results at frequencies well below microwave frequencies? (I think materials are modeled differently at lower frequencies, right?)

3. Can the same method be used in the atomic scale, if yes, how are wavefunctions dealt with?
 
Last edited:
  • #4
Thanks! To your questions:

1. I do not, for now, use a graded mesh, so the cell size is uniform. However, it is possible to implement a graded mesh, where the cell size is, like you say, smaller near the boundaries of discontinuities.

2. The TLM method as I am using is, like the FDTD, a time-domain method, where the frequency domain response is obtained via a Fourier transform. So, the low-frequency solution below microwave frequencies is included in the simulation (if included in the spectrum of the excitation signal). However, the simulation time needs to be chosen long enough, to get the information. Also, the imperfect simulation boundaries affect at low frequencies the solution.

3. I have seen some recent papers from Pierantoni dealing with TLM and Wave functions (http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4373543). I do not have any direct experience with this.
 
  • #5
That paper seems such a good idea, if we can simulate molecules in so much detail, who knows what revolutionary materials we can come up with.

Can your method deal with moving charge distributions? If not, can it easily be made to?

Any chance of simulating gas ionisation near the sharp ends of a charged conductor?
 
  • #6
Anyway, can you recommend any forums about the TLM and FDTD methods? Or other resources you found useful?
 
  • #7
The TLM is simulating the macroscopic (classical) Maxwell's equations, so any microscopic effect needs to be coupled to the "macroscopic" field.

Moving charge distributions are electric currents in TLM. Charge in space can be included via the conductivity of material (what engineers characterize by a "tan delta" of a material).

As far as the forums are concerned, I do not know for now any. But you may take a look at the wikipedia page, there is quite a lot of interesting stuff which can take you further: http://en.wikipedia.org/wiki/Computational_electromagnetics
 
Last edited:
  • #8
hi Ulysees & lorenz,

I from india. i am very interested with TLM method. This is the first forum i found on tlm peoples. nice to see. i had some experience with MEFISTO 3D. I had lots of questions during the simulation. I had applied it for EMC/EMI simulation. Pls help me in this regard. But i see this thread was not active for few months. so pls send me a PM.


thank you
 
Last edited by a moderator:
  • #9
hello, I'm trying emGine and it looks great.

does anybody know if emGine can deals with wires?

Thanks
 
  • #10
Ulysees said:
Anyone know some decent free software for simulating microwaves in full detail?

Ansoft: http://www.ansoft.com/ansoftdesignersv/
 
Last edited by a moderator:

Related to Free software for microwave simulation?

What is "free software" for microwave simulation?

"Free software" for microwave simulation refers to computer programs that are available for use and modification at no cost. This software is often developed by a community of volunteers and is licensed so that anyone can access, use, and modify the source code. This allows for greater flexibility and customization for users.

What are the benefits of using free software for microwave simulation?

The primary benefit of using free software for microwave simulation is that it is easily accessible and can be used by anyone, regardless of their budget. Additionally, since the source code is open, users can modify and adapt the software to fit their specific needs. This also allows for faster development and bug fixes, as the community of users can collaborate and contribute to the software's improvement.

What are the limitations of using free software for microwave simulation?

One potential limitation of using free software for microwave simulation is that it may not have as many features or capabilities as paid software. Additionally, since it is often developed by a community of volunteers, there may be less support and documentation available compared to paid software.

Can free software for microwave simulation be used for commercial purposes?

Yes, free software for microwave simulation can be used for commercial purposes. However, it is important to carefully review the software's license to ensure that it allows for commercial use and any necessary attribution or sharing of modifications.

Where can I find free software for microwave simulation?

There are several websites and repositories where you can find free software for microwave simulation, such as GitHub, SourceForge, and the Open Source Microwave Analysis and Design (OSMAD) project. It is also helpful to search for specific software or keywords related to microwave simulation on search engines or forums to find additional options.

Similar threads

  • Electrical Engineering
Replies
6
Views
2K
Replies
7
Views
3K
  • Electrical Engineering
Replies
18
Views
2K
  • Electrical Engineering
Replies
7
Views
2K
Replies
4
Views
879
  • Engineering and Comp Sci Homework Help
Replies
1
Views
523
Replies
1
Views
719
  • Atomic and Condensed Matter
Replies
3
Views
2K
  • Electrical Engineering
Replies
4
Views
1K
Replies
1
Views
767
Back
Top