[SI-LIST] Re: A question for the instrument guys on TDR and TDT

  • From: dgun@xxxxxxxxxx
  • To: si-list@xxxxxxxxxxxxx
  • Date: Tue, 14 Nov 2006 16:04:12 -0800

Wouldn't a scope fast enough to capture the reflections or transmissions
of a 35ps pulse be as or more expensive than a low-cost VNA?


> From: "Chris Cheng" <Chris.Cheng@xxxxxxxxxxxx>
> I can understand the merit of a step response and direct read out of =3D
> impedance profile.
> Will it be easy to also include a mode with a sharp pulse instead of =3D
> step for an impulse response ? If you have a circuit to generate a 35ps =
> step, can you use it to generate a 35ps pulse also ? I think there are =
> steps you can do to convert one to the other but a direct impulse =3D
> response is just too good to pass up.
> Network analyzer on the cheap.
> Thanks in advanced,
> Chris


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