[SI-LIST] Re: Port Extension Algorithm
- From: "Mark Randol" <Mark.Randol@xxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Mon, 30 Jul 2007 15:30:20 -0700
Actually Cody started it, but thanks ;)
--
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)
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> -----Original Message-----
> From: Barnes, Heidi [mailto:heidi.barnes@xxxxxxxxxx]=20
> Sent: Monday, July 30, 2007 4:58 PM
> To: si-list@xxxxxxxxxxxxx
> Cc: mike_resso@xxxxxxxxxxx; Mark Randol
> Subject: RE: [SI-LIST] Re: Port Extension Algorithm
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> Hello Mark,
> Here is a shorter URL to use for accessing the Agilent=20
> document along with links to Part 1 and Part 2 on useful=20
> measurement techniques for signal integrity.
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> Page 20 of Part 3 describes an excellent technique for=20
> getting accurate S-parameters of a test fixture for=20
> de-embedding both the phase and magnitude....
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> Part 3: The ABC's of De-Embedding
> http://cp.literature.agilent.com/litweb/pdf/5989-5765EN.pdf
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> in addition here are the other two parts:
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> Part 1: Single-Port TDR, TDR/TDT, and 2-Port TDR=20
> http://cp.literature.agilent.com/litweb/pdf/5989-5763EN.pdf
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> Part 2: 4-Port TDR/VNA/PLTS
> http://cp.literature.agilent.com/litweb/pdf/5989-5764EN.pdf
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> Regards,
> Heidi Barnes
> Americas Application Development Center
> Semiconductor Test Solutions
> Verigy Inc.
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> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx=20
> [mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of=20
> mike_resso@xxxxxxxxxxx
> Sent: Monday, July 30, 2007 12:51 PM
> To: Mark.Randol@xxxxxxxxxx; si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: Port Extension Algorithm
>=20
> Hi Mark,
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> VNA calibration is quite flexible, but it's important to know=20
> which type =3D of error correction to use at the right time.=20
> Understanding =3D de-embedding, port rotation, time domain=20
> gating, SOLT, TRL, LRM, =3D normalization and a host of others=20
> can be a daunting task. We just =3D finished a good app note on=20
> this subject called, " Signal Integrity =3D Analysis Series=20
> Part 3: The ABCs of De-Embedding". To check it out, go =3D
> here:
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> http://www.home.agilent.com/agilent/redirector.jspx?action=3D3Dr
> ef&cname=3D3D=3D
> AGILENT_EDITORIAL&ckey=3D3D1224306&lc=3D3Deng&cc=3D3DUS
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> I hope this helps.
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> Regards,
> Mike
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> Mike Resso
> Product Manager
> Signal Integrity Applications
> Component Test Division
> Agilent Technologies
> 1400 Fountaingrove Pkwy.
> Mail Stop 3USG
> Santa Rosa, Ca. 95403
> 707-577-6529=3D20
> =3D20
>=20
> =3D20
>=20
> -----Original Message-----
> From: si-list-bounce@xxxxxxxxxxxxx=20
> [mailto:si-list-bounce@xxxxxxxxxxxxx] =3D On Behalf Of Mark Randol
> Sent: Monday, July 30, 2007 12:37 PM
> To: si-list@xxxxxxxxxxxxx
> Subject: [SI-LIST] Re: Port Extension Algorithm
>=20
> Port extensions simply add in an amount of electrical length=20
> that the user specifies. The phase is mathematically=20
> 'un-wound' over frequency based on that setting. No losses=20
> or other problems are accounted for.
> The assumption is a 'perfect Zo transmission line of=20
> electrical length x'.
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> Oftentimes it is plenty good enough.
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> If you need more than that, you need to de-embed the=20
> structure in question with data from either simulation or=20
> measurements.
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> --
> 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) =3D3D20 =3D3D20
>=20
> > -----Original Message-----
> > From: si-list-bounce@xxxxxxxxxxxxx=3D3D20 =20
> >[mailto:si-list-bounce@xxxxxxxxxxxxx] On Behalf Of=3D3D20 =20
> >codymiller@xxxxxxxxxx
> > Sent: Monday, July 30, 2007 2:23 PM
> > To: si-list@xxxxxxxxxxxxx
> > Subject: [SI-LIST] Port Extension Algorithm =3D3D20 I would like to =
> >understand the algorithm used when the port=3D3D20 extension mode is =
> >used on a VNA. I have some S11 data that=3D3D20 was=20
> previously taken and=20
> >would like to apply a port extension=3D3D20 to it. Any thoughts?
> >=3D3D20
> > Thanks,
> > Cody Miller
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