Thanks a lot, this is good information -Lyndell
-----Original Message-----
From: Yuriy Shlepnev [mailto:shlepnev@xxxxxxxxxxxxx] ;
Sent: Friday, May 20, 2016 2:54 PM
To: Lyndell.Asbenson@xxxxxxxxxxx; 'Robert Haller'
<rhaller@xxxxxxxxxxxxxxxxxxx>; 'SI' <si-list@xxxxxxxxxxxxx>
Subject: RE: [SI-LIST] Re: Skin-effect visualization
Hi Lyndel,
Thank you for the feedback. I tried to use field visualization to illustrate
the weave effect at the "Material World..." tutorial at the last DesignCon.
See "Inhomogeneous Dielectrics" section starting from page 37 in presentation
#2016_01 at http://www.simberian.com/TechnicalPresentations.php
As you can see, it is all about polarization currents in the inhomogeneous
dielectrics.
Now I will think about how to visualize it at a different homogenization scale.
Best regards,
Yuriy
Yuriy Shlepnev, Ph.D.
President, Simberian Inc.
2629 Townsgate Rd., Suite #235, Westlake Village, CA 91361, USA Office
+1-702-876-2882; Fax +1-702-482-7903 Cell +1-206-409-2368; Virtual
+1-408-627-7706
Skype: shlepnev
www.simberian.com
Simbeor – Accurate, Productive and Cost-Effective Electromagnetic Signal
Integrity Software
2010 and 2011 DesignVision Award Winner, 2015 Best In Design&Test Finalist
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Lyndell Asbenson
Sent: Friday, May 20, 2016 1:52 PM
To: shlepnev@xxxxxxxxxxxxx; 'Robert Haller'; 'SI'
Subject: [SI-LIST] Re: Skin-effect visualization
Thanks, are there any models showing the PCB weave issues? Thanks Lyndell
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Yuriy Shlepnev
Sent: Friday, May 20, 2016 12:02 PM
To: 'Robert Haller' <rhaller@xxxxxxxxxxxxxxxxxxx>; 'SI' <si-list@xxxxxxxxxxxxx>
Subject: [SI-LIST] Re: Skin-effect visualization
Hi Robert and Everyone,
I just uploaded another "entertaining" video with the visualization of surface
and volumetric current density, surface electric field and surface power flow
for strip line with different conductor roughness parameters on top and bottom
of strip and planes - it is #2016_07 at
http://www.simberian.com/ScreenCasts.php ;(higher quality, but may be slow),
YouTube version is at https://youtu.be/PsM2Wu0pkRo I explained the approach ;
with the Roughness Correction Coefficients in the first part, and illustrated
it with computation of the fields in the second "fun" part.
As you can see, the roughness actually leads to substantial increase in
tangential electric fields and in the current densities on surfaces as the
result. I think this is the first "visualization" of such effect. Note that all
results are actual 3D EM computations, not just illustrations.
Previously at #20`6_04 (or at https://youtu.be/mx3_H0olIf8) I have investigated
"less known" Effective Roughness Dielectric model, that does not predict the
current re-distribution. I think it may be used only for some portion of the
"rough" layer, were there is no connectivity between the particles of the
conductor.
As always, I will appreciate any feedback.
Best regards,
Yuriy
Yuriy Shlepnev, Ph.D.
President, Simberian Inc.
2629 Townsgate Rd., Suite #235, Westlake Village, CA 91361, USA Office
+1-702-876-2882; Fax +1-702-482-7903 Cell +1-206-409-2368; Virtual
+1-408-627-7706
Skype: shlepnev
www.simberian.com
Simbeor – Accurate, Productive and Cost-Effective Electromagnetic Signal
Integrity Software
2010 and 2011 DesignVision Award Winner, 2015 Best In Design&Test Finalist
-----Original Message-----
From: Robert Haller [mailto:rhaller@xxxxxxxxxxxxxxxxxxx] ;
Sent: Friday, April 15, 2016 11:02 AM
To: shlepnev@xxxxxxxxxxxxx; 'SI'
Subject: RE: [SI-LIST] Skin-effect visualization
Yuri,
Really cool video !
It would be interesting to see the effect copper roughness and the effect of
Ground planes on both sides of the conductor (with different roughness) which
is often the case.
Regards
Bob Haller
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On ;
Behalf Of Yuriy Shlepnev
Sent: Friday, April 15, 2016 1:48 PM
To: 'SI' <si-list@xxxxxxxxxxxxx>
Subject: [SI-LIST] Skin-effect visualization
Hello Everyone,
Here is some entertainment for Friday. I recorded a couple of videos
illustrating skin effect in microstrip line: #2016_01 and #2016_02 at
http://www.simberian.com/ScreenCasts.php. This is dynamic versions of app note ;
#2015_01 from http://www.simberian.com/AppNotes.php
I will appreciate any feedback on that and what fields and effects for what
interconnect structures would be also interesting to see.
Best regards,
Yuriy
Yuriy Shlepnev, Ph.D.
President, Simberian Inc.
2629 Townsgate Rd., Suite #235, Westlake Village, CA 91361, USA Office
+1-702-876-2882; Fax +1-702-482-7903 Cell +1-206-409-2368; Virtual
+1-408-627-7706
Skype: shlepnev
www.simberian.com
Simbeor – Accurate, Productive and Cost-Effective Electromagnetic Signal
Integrity Software
2010 and 2011 DesignVision Award Winner, 2015 Best In Design&Test Finalist
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