[SI-LIST] TDR & Impedance rise in lossy interconnects

  • From: Boris Bakshan <bbakshan@xxxxxxxxx>
  • To: "si-list@xxxxxxxxxxxxx" <si-list@xxxxxxxxxxxxx>
  • Date: Sat, 23 May 2015 23:43:15 +0300

Hello,
When running a TDR measurement on a lossy channel such as long backplane I
always see a positive drift of the impedance along the interconnect.
Is it just an artifact or should it account for physical property of the
material?
What's the physical explanation behind this?

Thanks,
Boris.


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