[SI-LIST] Re: Cascading differential 2-Port Networks
- From: Zhangkun <zhang_kun@xxxxxxxxxx>
- To: welte@xxxxxxxxxx, si-list <si-list@xxxxxxxxxxxxx>
- Date: Sat, 23 Nov 2002 09:27:53 +0800
Dear Welte:
The following is my solution.
1.Get normal S-para from mixed-mode S-para
2.Get Z-para from S-para
3.Get T-para from Z-para
The relationship is in the attachment. I could not put the bmp file here.
Port1 and Port2 in one side of the net and Port3 and Port4 is in the other side
of the net.
I hope this will be helpfor you.
Best Regards
Zhangkun
2002.11.23
----- Original Message -----
From: Bob Welte <welte@xxxxxxxxxx>
To: <si-list@xxxxxxxxxxxxx>
Sent: Friday, November 22, 2002 7:43 PM
Subject: [SI-LIST] Cascading differential 2-Port Networks
>
> Hello to All
> I have run into an interesting problem.
> I am trying to put together a simple modeling environment of our 2.5Gb/s
> high speed digital channel using S-parameters. Because it is a
> differential environment, I will be using mixed-mode S-parameters. While I
> understand the concept of converting "S" into "T" parameters and using the
> chain-scattering-matrix to cascade the 2 ports of a channel, I do not know
> what to do when the channel is differential, and you begin with mixed-mode
> S-parameters.
> Can anyone offer a reference, or perhaps share some knowledge?
>
> Bob Welte
> IBM Microelectronics
>
>
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-- Binary/unsupported file stripped by Ecartis --
-- Type: image/bmp
-- File: T-para.bmp
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