So I have been reading a bit about transmission lines and I have a few questions.
My first question is that I have seen references that say that twisted pair is a transmission line. I have never thought of an Ethernet or Phone line cable as a transmission line. Are they fundamentally using electromagnetic energy to propagate the signal in the same basic principle as a coaxial cable? Or is it more like a mouse where you are just picking up voltage levels.
My second question is how the signal is received. Is the wave propagation simply helping to keep the current flowing? At the receiving end of the cable I assume it is just sensing the current or Voltage on the cable, and not directly using the Electric and magnetic fields.
Id love any clarification/books/sources that explain more about whats going on in these.
My first question is that I have seen references that say that twisted pair is a transmission line. I have never thought of an Ethernet or Phone line cable as a transmission line. Are they fundamentally using electromagnetic energy to propagate the signal in the same basic principle as a coaxial cable? Or is it more like a mouse where you are just picking up voltage levels.
My second question is how the signal is received. Is the wave propagation simply helping to keep the current flowing? At the receiving end of the cable I assume it is just sensing the current or Voltage on the cable, and not directly using the Electric and magnetic fields.
Id love any clarification/books/sources that explain more about whats going on in these.