[SI-LIST] Re: f-domain to t-domain simulation
- From: Scott McMorrow <scott@xxxxxxxxxxxxx>
- To: Michael Rose <mrose@xxxxxxxxxxxx>
- Date: Mon, 05 Oct 2009 12:45:20 -0400
Michael
Yes, it is real, as any TDR of a channel will tell you. It is a
combination of increasing DC channel resistance, and increasing loop
inductance at lower frequencies - as the signal penetrates more deeply
into the conductors.
regards,
Scott
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Michael Rose wrote:
> When I convert a f-domain channel to differential t-params (TDD11), I
> notice the impedance rising along a transmission line segment as if the
> tline is predominantly inductive. This tends to bias the impedance
> higher for features towards the far end. The single-ended f-domain
> channel includes the normal 50 ohm terminations. Is this a real
> phenomena? How is it explained?
>
> Thanks. Mike
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