Search found 8 matches

by wettersat
Thu 18 Jun 2020, 15:40
Forum: Usage
Topic: Waveguide adapter simulation
Replies: 10
Views: 3708

Re: Waveguide adapter simulation

Not at first glance for a beginner.
I use both directions, Tx and Rx mode. But now I see what you want to say.
by wettersat
Thu 18 Jun 2020, 15:35
Forum: Usage
Topic: Corrugated Horn Antenna Tutorial for openEMS
Replies: 6
Views: 6879

Re: Corrugated Horn Antenna Tutorial for openEMS

Hello Paul
Thanks, then it is clear.

I found a typo in the middle of page 36.
"-wgl-10 is the location" -> -wgl+10
Here it is correct mesh.z = [-wgl-lambda_max-9 -wgl-1 -wgl -wgl+10 0 len(1:2:z_number) length+2*lambda_max+9
];
by wettersat
Mon 15 Jun 2020, 17:08
Forum: Usage
Topic: Waveguide adapter simulation
Replies: 10
Views: 3708

Re: Waveguide adapter simulation

Last weekend I studied some openEMS scripts (again). A rect-to-rect transition should be able to do (or a cir-to-cir transition), that's an easy job. For a better understanding. I need only 1 port for a rec-to-cir transition, but which one? [CSX, port{1}] = AddCircWaveGuidePort( CSX, 0, 1, start, st...
by wettersat
Mon 15 Jun 2020, 16:55
Forum: Usage
Topic: Corrugated Horn Antenna Tutorial for openEMS
Replies: 6
Views: 6879

Re: Corrugated Horn Antenna Tutorial for openEMS

Paul, thanks for this helpful tutorial. I am a little confused. Is the definition of the mesh.x really correct? BC = {'PML_8' 'PML_8' 'PML_8' 'PML_8' 'PML_8' 'PML_8'}; % boundary conditions FDTD = SetBoundaryCond(FDTD, BC); % Calculate lambda/4 at lowest frequency to use as distance to nf2ff surface...
by wettersat
Fri 12 Jun 2020, 14:12
Forum: Usage
Topic: Waveguide adapter simulation
Replies: 10
Views: 3708

Re: Waveguide adapter simulation

Thanks for the hint.
by wettersat
Wed 10 Jun 2020, 13:27
Forum: Usage
Topic: Waveguide adapter simulation
Replies: 10
Views: 3708

Re: Waveguide adapter simulation

My idea was to "join" both tutorial scripts for circular and rectangular waveguides. But there is the question with the mesh and ports definition. Both ends could be open waveguides, no coax feed needed.
by wettersat
Mon 08 Jun 2020, 20:07
Forum: Usage
Topic: Waveguide adapter simulation
Replies: 10
Views: 3708

Re: Waveguide adapter simulation

Yes, that was the question. Hmmm, but how?
by wettersat
Fri 05 Jun 2020, 12:59
Forum: Usage
Topic: Waveguide adapter simulation
Replies: 10
Views: 3708

Waveguide adapter simulation

Hi folks I am a novice in openEMS and still trying to understand/modify simulation scripts. Until now I have modified scripts to simulate W2IMU dual mode horns. Has anyone tried to simulate e.g. rectangular waveguide to circular waveguide using a quarter wave plate adapter between? Or only a rectang...