PP05 - Texas State University—San Marcos Ingram School of...

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Unformatted text preview: Texas State University—San Marcos Ingram School of Engineering EE3340: Fields and Waves SOLuTtov Practice Problem 5: Transients on Transmission Lines NAME: DATE: 1.A l-V (into 50 ohms) step function from a 50-ohm source is applied to a 50-0hm dispersionless transmission line whose length L is such that the one~way travel time for a signal is 10 ns (L / up = 10 ns). The end of the line opposite the source is open-circuited. Complete this graph showing the voltage V(t) at the open end of the line as a function of time from t = 0 (when the step function begins) until I = 20 HS. Draw a bounce diagram below the voltage plot to help you ﬁnd the voltage at the end of the line. _/ Rs=509 +2v -'VW-l:'_':O—::l+ Si V(t) RL= FIZZ—:29 \ I": H V‘:O)U+ . | \’)_\I \"'“‘“ {w ' V(t)atx=L V0 (\vtre “20.06 1V ow. (wile I; F IV. 30 X=L *' —-‘ V = t=10ns l=20ns V - (00 .H t o 0 X e, fvuL + revs“); [bus We U‘L‘v MP G—T t=l0l\$ £mwe&\0telr 2° “5 t ...
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