[SI-LIST] Re: About Self coupling

Hi Naren,
I had problem to understand the picture...
but from the title
I believe you are applying a rule to reduce the coupling

I would say the 3W is refereed to the track width.

in any case a good field solver could give you a better idea about the real
behaviour of your trace
even a simple 2d simulation will gibe you a good understanding of
your case, if like you could download maxwell Sv that is a free software for
2D analysis from www.ansoft.com

Giancarlo
----- Original Message -----
From: "Naren" <naren@xxxxxxxxxx>
To: <si-list@xxxxxxxxxxxxx>
Sent: Friday, April 29, 2005 1:13 PM
Subject: [SI-LIST] About Self coupling


Hello

Recently we are designing PCB @ 700 MHz (Digital) signals.
In that we are using banding (As shown in attached picture)for length
matching. As per thumb rule it should be more than 3X .

   |           |-----------
   |           |           |
   |           |           |
   |           |           |
   |           |           |
   |___________|           |

--->  3W       <----




But I am confused that X means track width or Track(PCB Copper) height?

Anybody can clarify it?

-- Binary/unsupported file stripped by Ecartis --
-- Type: application/msword
-- File: 3w.doc


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