Search found 1412 matches

by thorsten
Sun 22 Nov 2020, 20:20
Forum: Development
Topic: Accelerate initialization of many excitations
Replies: 2
Views: 908

Re: Accelerate initialization of many excitations

I think I was able to speedup the setup quit a lot. Please give the latest build a try.

I certainly need to make sure this has no unwanted side effect as this is a change in a dangerous place...

regards
Thorsten
by thorsten
Thu 22 Oct 2020, 20:14
Forum: Usage
Topic: Frequency Selective Surface
Replies: 4
Views: 525

Re: Frequency Selective Surface

Yes you can tries MSL lines, or go simpler (but more manual) and use lumped ports at the end...

br
Thorsten
by thorsten
Thu 22 Oct 2020, 20:12
Forum: Install
Topic: Linux Server Installation
Replies: 4
Views: 683

Re: Linux Server Installation: Error in CSXCAD/CSPrimPolyhedronReader.cpp

Both seems to be related to vtk9. vtk 9 is very new and I have never tried to build against version 9. I guess I will have to adapt to the new vtk as for many major new version before. I can only assume you build vtk yourself? I recommend to just use the distribution versions or at least try an olde...
by thorsten
Wed 21 Oct 2020, 08:20
Forum: Usage
Topic: Frequency Selective Surface
Replies: 4
Views: 525

Re: Frequency Selective Surface

Yes this looks very much like a polygon...

br
Thorsten
by thorsten
Wed 21 Oct 2020, 08:19
Forum: Usage
Topic: Segmentation Fault (Core Dumped)
Replies: 1
Views: 293

Re: Segmentation Fault (Core Dumped)

Please install the latest version from github.

br
Thorsten
by thorsten
Sun 11 Oct 2020, 11:00
Forum: Usage
Topic: FDTD Computation Time Estimation
Replies: 1
Views: 449

Re: FDTD Computation Time Estimation

Hi, well you get the time it takes to calculate each step one the engine has started and run for a few seconds. Thus you can roughly calculate how long the excitation will take since that number is given during setup as well. But what nobody can estimate (without any prior experience with the given ...
by thorsten
Tue 22 Sep 2020, 19:40
Forum: Usage
Topic: What the reason when I run MRI_Loop_Coil.m?
Replies: 3
Views: 859

Re: What the reason when I run MRI_Loop_Coil.m?

You will need the human body models to run this simulation.
But openEMS cannot include them, if you have no access to them, you cannot run this simulation
Read more here: https://openems.de/index.php/Tutorial:_ ... _Coil.html
Including alternatives to the human body models.

regards
Thorsten
by thorsten
Tue 22 Sep 2020, 19:37
Forum: Usage
Topic: Properly meshing a port
Replies: 2
Views: 669

Re: Properly meshing a port

The excitation, (data) probes and such are always snapped to the nearest mesh lines in any case. Therefore it is better to align your mesh with your structures in the first place, otherwise the excitation and such may end up in locations you did not plan them to be. Therefore, place mesh lines at th...
by thorsten
Tue 22 Sep 2020, 19:34
Forum: Usage
Topic: Resume simulation from previous data
Replies: 1
Views: 629

Re: Resume simulation from previous data

No it is not. During simulation 99% of the data is only temporary and is not saved. Thus resuming is not really feasible.

regards
Thorsten
by thorsten
Tue 22 Sep 2020, 19:29
Forum: Usage
Topic: Simulating objects in FarField of Antenna
Replies: 2
Views: 663

Re: Simulating objects in FarField of Antenna

A lot of details here are unclear or make little sense to me. First of the far field of an antenna is hard to define exactly but in this case it should be well below one lambda (not 8 or something). The question is what you want to do here? Why do you want to place a lens this far away? Usually a le...