A generator circuit with Vg = 200 V and Rg = 25 Ω was used to excite a 75-Ω lossless line...

A generator circuit with Vg = 200 V and Rg = 25 Ω was used to excite a 75-Ω lossless line with a rectangular pulse of duration τ = 0.4 μs. The line is 200 m long, its up = 2 × 108 m/s, and it is terminated in a load ZL = 125 Ω.

(a) Synthesize the voltage pulse exciting the line as the sum of two step functions, and .

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(b) For each voltage step function, generate a bounce diagram for the voltage on the line.

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(c) Use the bounce diagrams to plot the total voltage at the sending end of the line.