(apologies if you have heard something like this before - I have discussed it
privately in a couple of contexts)
Imagine that I have a physical interconnect, consisting of a differential pair
of wires not particularly strongly coupled to each other. I want to model the
interconnect using an S-parameter set of at least 4 (four) ports: two inputs P
&N and two outputs P' & N'.
The problem: the physical pair of wires is approximately one mile in length
from P & N to P' & N'.
My questions:
1) Can this structure be correctly and unambiguously described using a
circuit with N terminals and an N+1 reference terminal? If not, how many
additional terminals are required?
2) Does the current BIRD189 draft, as written, enable correct and
unambiguous description(s) of this structure?
3) Does BIRD158.7, as written, enable correct and unambiguous
description(s) of this structure?
Thank you!
- MM
