2. In your own words, describe the events resulting in the waveform observed in
ID: 2293787 • Letter: 2
Question
2. In your own words, describe the events resulting in the waveform observed in Figu for an open ended transmission line. Start your description with the launching of a fast rise-time step from a function generator with a 50 2 output (generator) impedance connected to the input of an open-ended 50 ? transmission line. I description comments on the voltage levels relative to the steady-state voltage associated the incident and reflected waveforms. (4 points) nclude in yo ur level 3. In your own words, describe the events resulting in the waveform observed when the 50 ? transmission line is terminated in a short circuit. Start your description with the launching of a fast rise-time step from a function generator with a 50 ? output (generator) impedance connected to the input of a shorted 50 ? transmission line. Include in your description comments on the voltage levels relative to the steady state voltage level associated the incident and reflected waveforms. (4 points)Explanation / Answer
The reflection with a source caused the signal to overshoot. The initial voltage level at the load depends on the load impedance, which is infinite for an open load, and the characteristics impedance of the transmission line.
The next voltage level when the reflected signal arrives at the source, depends on the source impedance and the characteristics impedance of the transmission line.
The next voltage level, when the reflected signal arrives at the load again, depends on the reflected voltage.
This process continues until steady state is reached. In this example the steady state occur 9ns from the start point.
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