[SI-LIST] Re: Port Extension Algorithm
- From: "Clewell, Craig" <Cclewell@xxxxxxxxxxxxx>
- To: "'codymiller@xxxxxxxxxx'" <codymiller@xxxxxxxxxx>
- Date: Mon, 30 Jul 2007 15:54:35 -0400
Agilent just released Part 3 of their Application note entitled The ABC's
of De-Embedding. This is part of their SI Analysis Series. I believe this
is covered in the application note.
CC
-----Original Message-----
From: Mark Randol [mailto:Mark.Randol@xxxxxxxxxx]
Sent: Monday, July 30, 2007 15:37
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] Re: Port Extension Algorithm
Port extensions simply add in an amount of electrical length that the user
specifies. The phase is mathematically 'un-wound' over frequency based on
that setting. No losses or other problems are accounted for.
The assumption is a 'perfect Zo transmission line of electrical length x'.
Oftentimes it is plenty good enough.
If you need more than that, you need to de-embed the structure in question
with data from either simulation or measurements.
--
Mark Randol, RF Evaluation & Application Engineer ON Semiconductor
901 S. Mopac Expressway
Barton Oaks 4, Suite 343
Austin, TX 78746
512-329-5640 (voice), 512-329-8151 (FAX) =20 =20
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx=20
> [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of=20
>codymiller@xxxxxxxxxx
> Sent: Monday, July 30, 2007 2:23 PM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Port Extension Algorithm =20 I would like to
>understand the algorithm used when the port=20 extension mode is used
>on a VNA. I have some S11 data that=20 was previously taken and would
>like to apply a port extension=20 to it. Any thoughts?
>=20
> Thanks,
> Cody Miller
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