[SI-LIST] Re: EMI simulation tools at PCB level

Hi Scott,
you are right there is a way to import
Gerber in To Ansoft 3D tool
by using a 3d part code.

Anyway Gerber is far the last choice to perform an EM analysis,
because it contains just geometrical information
and it was intended to phisically build a pcb rather than
to be a neutral format to exchange information.

Ansoft user can take advantage from Ansoftlink
that provide an automatic integration between
Cadence, Nentor, Zuken and Synopsis layout toll
either for package and PCB.

GIancarlo



----- Original Message ----- 
From: "Thomas Beneken" <beneken@xxxxxxxxxxxx>
To: <si-list@xxxxxxxxxxxxx>
Sent: Tuesday, December 07, 2004 11:00 AM
Subject: [SI-LIST] Re: EMI simulation tools at PCB level


> I've found artwork in the CST gerber input converter ...
> 
> .. and yes, gerber conversion sometimes needs rework by hand if it looks
> like painting with a spot of light ...
> 
> Thomas
> 
> >    Date: Mon, 06 Dec 2004 10:56:17 -0500
> >    From: Scott McMorrow <scott@xxxxxxxxxxxxx>
> > Subject: Re: EMI simulation tools at PCB level
> >
> >
> > Stuart Brorson wrote:
> >
> > >I don't think Gerber is used as an input format for SI tools, is it?
> > >
> > >
> > >
> > Actually, believe it or not, Gerber is a format that can be used with
> > some 3D fullwave solvers.  CST Microwave can use it.  And I seem to
> > remember a path from Gerber to the HFSS format.  But ... it can get
> > ugly.  The other format that is prevalent in the RF/ Microwave tool
> > universe is DXF. Artwork Conversions (www.artwork.com) has some good
> > tools that can be used to translate from Gerber to DXF and
> > back again,
> > along with some links to other RF tool formats.  Regarding what will
> > happen to the files in a particular tool once they have been
> > imported.
> > Well that is a topic for a month's worth of discussions.  Generally I
> > find that after translation into dxf, a good editor like Autocad or
> > Solidworks is a must have to perform some cleanup of the design.
> >
> > As for non-proprietary formats for PCB, flex, MCM,  and
> > package design
> > information exchanges, wouldn't that be nice?  Ff we had a robust
> > universal design information exchange format, we would be
> > able to pick
> > and choose the best software for any particular job that we
> > are doing.
> > Unfortunately, this would run against the financial interests of most
> > EDA vendors, which is exactly why we'll never see such a think in our
> > lifetime.
> >
> > As for solving the entire electrical, electromagnetic and numerical
> > environment of a common PCB, with the thought of correlating to far
> > field emissions from thousands of potential radiating elements, that
> > sounds like a good DARPA project on a massively parallel
> > processor.  No
> > one else has that kind of money to fund research that will
> > never find a
> > commercial market.
> >
> > regards,
> >
> > scott
> >
> > --
> > Scott McMorrow
> > Grand Poobah
> > Teraspeed Consulting Group LLC
> > 121 North River Drive
> > Narragansett, RI 02882
> > (401) 284-1827 Business
> > (401) 284-1840 Fax
> > (503) 750-6481 Cellular
> > http://www.teraspeed.com
> >
> > Teraspeed is the registered service mark of
> > Teraspeed Consulting Group LLC
> 
> 
> 
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