2.5 Reflection of DC voltage in Transmission lines
57
Figure 2.5-27 Reflected voltage wave makes its way towards generator
These charges accumulate to a level twice as high as the incoming signal. That is the precise level of
compression required to arrest the momentum of further incoming particles. This is the so-called
"doubling effect" that happens at the end of an open-circuited transmission line.
There are two facts to remember about current. Firstly by convention it is defined as the
movement of positive charge carriers although it is electrons (i.e. negative charges) that are actually
free to move. Secondly charge carriers do not actually move at the speed of light, although the
"knock-on" effect of their movement does propagate at the speed of light.
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Conquer Radio Frequency
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