Kicad nightly (development snapshot of future v6) can export to the format Hyperlynx

[Jean_Pierre]

Hello everyone

The last version of Kicad v6 nightly can now export the format HyperLynx.

For Ubuntu 18.10 install kicad-nightly_201904092302+89d2e67~94~ubuntu18.10.1_amd64.deb

Command line

/usr/bin/pcbnew-nightly

See picture

[xennonflash]

Cool! So one can use the expensive fieldsolver.
By the way, there is an open source field solver, openEMS written by the university
of Duisburg, Germany which is based on matlab / octave.
I never tried it, but it would be good to support the openEMS fieldsolver, as
it is free.
And …
it can read hyperlynx:
http://www.openems.de/index.php/Tutorial:_Importing_with_hyp2mat.html

Cheers,

Ludwig

[John_Pateman]

I believe openEMS can import Hyperlynx format either directly or via a script https://github.com/koendv/hyp2mat

[michal777]

Hi
I’m trying to do some simulations in OpenEMS using hyperlynx files exported by kicad. There are some problems:

• I have to edit the file to change PCB thickness because the thickness set in kicad is ignored
• I have to edit the file to change PCB permittivity (can’t set it in kicad)
• I can’t set material losses - is there any way of setting it (some parameter to add to the file)?
• copper defined as shapes is ignored, only zones and tracks are imported
• there are some problems with cutouts (maybe that’s a problem on the OpenEMS side).

[Jean_Pierre]

Hello
There is also Pyopenems, a python script to convert Kicad pcb to Hyperlynx

dlharmon/pyopenems

I have never tried it

[michal777]

Here is how to set parameters of substrate in openems when they are wrong in hyperlynx file exported from kicad:
CSX.Properties.Material{1}.Property.ATTRIBUTE.Kappa = kap;
CSX.Properties.Material{1}.Property.ATTRIBUTE.Epsilon = er;
CSX.Properties.Material{1}.Primitives.Box{1}.P2.ATTRIBUTE.Z = subs_thick;