Hello everyone !
I am reading about transmission lines and standing waves in them , because of impedance difference.
The concept of an open circuit and it's reflections is perfectly clear , though I can not grasp the situation where the end of the line is short-circuited .
As the text - book says :
" A similar phenomenon takes place if the end of a transmission line is short-circuited: when the voltage wave-front reaches the end of the line, it is reflected back to the source, because voltage cannot exist between two electrically common points. When this reflected wave reaches the source, the source sees the entire transmission line as a short-circuit. Again, this happens as quickly as the signal can propagate round-trip down and up the transmission line at whatever velocity allowed by the dielectric material between the line's conductors. ".
This is very confusing and if anyone could explain this more ( with an example like the train in the textbook ) I would be very grateful.
Thank you in advance
I am reading about transmission lines and standing waves in them , because of impedance difference.
The concept of an open circuit and it's reflections is perfectly clear , though I can not grasp the situation where the end of the line is short-circuited .
As the text - book says :
" A similar phenomenon takes place if the end of a transmission line is short-circuited: when the voltage wave-front reaches the end of the line, it is reflected back to the source, because voltage cannot exist between two electrically common points. When this reflected wave reaches the source, the source sees the entire transmission line as a short-circuit. Again, this happens as quickly as the signal can propagate round-trip down and up the transmission line at whatever velocity allowed by the dielectric material between the line's conductors. ".
This is very confusing and if anyone could explain this more ( with an example like the train in the textbook ) I would be very grateful.
Thank you in advance