[SI-LIST] Re: test board

Giuseppe,

The ARFTG digests are available for purchase from www.arftg.org.

I believe Ed is still on the ARFTG committee, so his email address may
be at the above website as well and you could contact him directly for a
copy of the paper you referenced.

If the paper was written while he was at Cascade, they have done a great
job of archiving these on their website at www.cascademicrotech.com.

I would also dig through the IEEE archives (and DesignCon if you have
access) there are an abundance of papers on nearly every aspect of
package characterization available there.

As a consideration, you don't mention the frequency range you wish to
cover, but in general it is quite difficult to create high quality cal
structures on a PCB (especially loads).  If this is a concern you may
consider alternate VNA calibration techniques that don't rely on loads,
such as TRL.

There are a number of good sources for fixturing help on this list, I
assume they will get in contact with you.

Best regards,
-Brett

-----Original Message-----
From: si-list-bounce@xxxxxxxxxxxxx [mailto:si-list-bounce@xxxxxxxxxxxxx]
On Behalf Of Giuseppe DABUNDO
Sent: Thursday, May 25, 2006 7:55 AM
To: si-list@xxxxxxxxxxxxx
Subject: [SI-LIST] test board

Hi all,
I'm searching information to plane a test board to perform TDR or VNA=20
measurement for package characterization.
I need of a custom calibration kit with short,load and open standards=20
placed on the board at the point where
the DUT is mounted.This allows for the removal of the effects of the SMA

and transmission line on the PCB .
In this manner I don't need to de-embedding the test fixture.
A possible link for reference is :
 *E. Godshalk, G. Sundberg "Characterization of Surface Mount Components

at Microwave Frequencies Using Wafer Probes,"
 53rd Automatic Radio Frequency Techniques Group Conference Digest,=20
Anaheim, California, June 1999, pp. 131- 138

*How can I get this or anothers references ?

Thanks in advance!!!

Giuseppe
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