RE: [SI-LIST] : Need information on inexpensive Circuit simulatio

jaydiep@us.ibm.com
Mon, 12 Apr 1999 15:39:39 -0400

Khalid Ansari wrote,

>>Could somebody help me locate some good literature on TDR measurements
that would help me >>figure out capacitance values on a transmission line.
I would love to find something that would train >>me on all aspects of TDR
measurements. I am using a Tek 11801B oscilloscope.

A good reference on TDRs is H-P App. Note 62, "TDR Fundamentals," available
from your local H-P sales rep. (may also on their Web site).

On the subject of capacitance extraction, take a look at a paper by Megill
in the July, 1981 issue of Electronics, titled "TDRs profile impedances of
backplanes and pc boards." There's also a thesis by Jyh-Ming Jong at
Oregon State University from 1995 titled "Electrical Characterization of
and Circuit Modeling of Interconnections and Packages for High Speed
Circuits by Time Domain Measurements." I don't have a copy of it, but I
understand it's a good reference on the subject.

Best regards,

Jay Diepenbrock

Senior Engineer
Interconnect Technology & Qualification
IBM Global Procurement, B8UA/061, RTP, NC
Phone: 919-543-8804 Fax: 919-543-3642
Email: jaydiep@us.ibm.com

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