Near end coupling coeffecient problems

  • Thread starter Thread starter Trespaser5
  • Start date Start date
  • Tags Tags
    Coupling
Join the discussion
Ask a follow-up here, or get your own question answered by working scientists, mathematicians and engineers — people, not an autocomplete.
Real named experts · corrections over time · the nuance an AI answer skips
1 reply · 1K views
Trespaser5
Messages
19
Reaction score
0
I have been given a formula Kne = [itex]\frac{1}{4Td}[/itex](CZo+[itex]\frac{L}{Zo}[/itex])
I've been given C as 10pF and L as 80nH and Zo as 70.7.
I have calculated Td from the formula propagation velocity = 1/[itex]\sqrt{LC}[/itex] and the line capacitance and inductance are 400nH and 80pF and then divided this into 0.05m the line length is given as 50mm.

The problem is I get a coeffcient of 1.64, this can't be correct as it would mean the interference voltage would be greater than the voltage being driven in the aggressor

Anyone see where I'm going wrong ?
 
Physics news on Phys.org