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August 1999

DesignerCouncil@IPC.ORG
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Subject:
Re: 3 side Trace shielding
From:
Paulo Egon Triebsees <[log in to unmask]>
Reply To:
DesignerCouncil E-Mail Forum.
Date:
Sat, 5 Jan 1980 09:17:00 -0200
Content-Type:
text/plain
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text/plain (18 lines) 
Hi Oliver,

>We have a traces which we want to have an impedance
>  of 75Ohm. Under the trace there will be a ground plane.
>  So fare calculating trace width would be easy. But we need
>  ground on both sides of the trace also.
>Does anyone know a formula for trace width embed in ground
>on
>  three sides?


Use AppCAD from HP, you can get it at
http://www.hp.woodshot.com/appcad/AppCAD-0.html .

Good luck,

Paulo Egon

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