Search found 173 matches

by Hale_812
Thu 20 Dec 2018, 02:12
Forum: Usage
Topic: NF2FF Phase
Replies: 3
Views: 4777

Re: NF2FF Phase

I didn't do it in traditional fashion, as in the example. but I did phase extraction with a plane wave box. this instrument extracts the plane wave from itself in the box exterior, so it is zeroed, but leaves the excitation inside the box. If there is something disturbing the field inside it, the th...
by Hale_812
Wed 19 Dec 2018, 01:33
Forum: Feedback
Topic: OpenEMS IRC Channel
Replies: 5
Views: 8244

Re: OpenEMS IRC Channel

IRC!? After Emule lost its popularity, no-one even remember IRC.
We could also dig the ICQ, or Usenet... oh. how about mirroring wiki to Gopher? In my previous lab, 12 years ago, people were still receiving e-mails by UUCP... just because...
by Hale_812
Fri 14 Dec 2018, 09:15
Forum: Usage
Topic: Horn antenna, lumped port
Replies: 1
Views: 2983

Re: Horn antenna, lumped port

Lumped port is a cuboid-shped resistor, which vertices are strictly coincide with mesh-grid nodes. generally, is is a single 3D cell box with direction of current and resistance defined. One side touches ground plane exactly, opposite side touches metal probe, with planes coinciding exactly at the s...
by Hale_812
Tue 04 Dec 2018, 06:27
Forum: Usage
Topic: Split ring resonators
Replies: 2
Views: 4607

Re: Split ring resonators

probably, the simulation uses PMC, or PML for simulating periodicity (I don't remember which is applicable there) If not, you can not make it the same as HFSS. But the single-cell still can be simulated. And the object can be scripted in an array, I did such things before. really, usually the proble...
by Hale_812
Tue 04 Dec 2018, 06:20
Forum: Usage
Topic: Which hardware for openEMS?
Replies: 24
Views: 26848

Re: Which hardware for openEMS?

Avoid using dual processing for simulations that greatly exceed CPU cache, and do not use mirrored memory per CPU unit. Although, Intel introduced certain advances in inter-CPU RAM access mechanisms, these things are oriented primarily on server marked, not on high-performance computations. So the t...
by Hale_812
Fri 30 Nov 2018, 02:56
Forum: Usage
Topic: Which hardware for openEMS?
Replies: 24
Views: 26848

Re: Which hardware for openEMS?

I see. Well, If I can make use of all my cores available that would be good. it often happens with non-optimized codes that running them on N-1 cores, or with "below average" priority gives better results, because the "unused" time constitutes an important overhead for OS operations, supporting the...
by Hale_812
Thu 29 Nov 2018, 02:02
Forum: Usage
Topic: Which hardware for openEMS?
Replies: 24
Views: 26848

Re: Which hardware for openEMS?

help RunOpenEMS RunOpenEMS(Sim_Path, Sim_File, <opts, Settings>) --numThreads=<n> However, I am not sure it is working. If I remember correctly, when I tried --engine=basic, something went wrong... Well, just try it yourself. Octave is single thread by default. Unless there are external binary tools...
by Hale_812
Thu 22 Nov 2018, 08:13
Forum: Usage
Topic: Multi-grid and cylindrical coordinates problem
Replies: 9
Views: 10145

Re: Multi-grid and cylindrical coordinates problem

- Is there a smith chart plot option is OpenEMS ? if not i will make one. No. I've seen some scripts at Matlab official forum. But didn't try porting to Octave. This summer I posted here a good working script for radiation pattern, if you find it useful. - Is there a built option/function to choose...
by Hale_812
Wed 21 Nov 2018, 04:59
Forum: Usage
Topic: Multi-grid and cylindrical coordinates problem
Replies: 9
Views: 10145

Re: Multi-grid and cylindrical coordinates problem

@thorsten >No it cannot. In rect grids, subgrids are usually used to locally refine the mesh I should note another application again: for large antenna-to-antenna/radar simulations this can cut down free-space propagation time. So technically you don't have to set a small nested mesh, one inside oth...
by Hale_812
Fri 16 Nov 2018, 07:24
Forum: News
Topic: openEMS.de is back up again
Replies: 13
Views: 43227

Re: openEMS.de is back up again

And thank you so much for coming back!