[SI-LIST] Re: 2 layers PCB with no Plane(gnd or Power)
- From: "Grasso, Charles" <Charles.Grasso@xxxxxxxxxxxx>
- To: "Mohamad Haghtalab" <mohaghtalab@xxxxxxxxx>, <si-list@xxxxxxxxxxxxx>
- Date: Mon, 4 Aug 2008 09:25:23 -0600
Hi - At EchoStar we regularly design high speed 2 layer boards.
We used Ansoft's 2D solver (now integrated into Q3D) to do
all the required SI design (including cross talk). Of course
a 2D tool cannot predict EMI - but any high speed design
on a 2layer board will radiate more than a design that has
planes - so a conductive enclosure may be required.
-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx] On
Behalf Of Mohamad Haghtalab
Sent: Sunday, August 03, 2008 3:50 PM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] 2 layers PCB with no Plane(gnd or Power)
Hi all
How can we analyse(simulate) PCBs (transmission line effect ,calculatig
Z0(SI/EMI issues)...) with 2 routing layers and between them(signal
tracks)ground Islands(cupper fills...),what's the ground associate with each
signal track,how can we predict where the return current of each signal will
flow?
Thanks for helping
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