homework10 - School of Electrical and Computer Engineering,...

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1 School of Electrical and Computer Engineering, Cornell University ECE 303: Electromagnetic Fields and Waves Fall 2005 Homework 10 Due on Nov. 04, 2005 by 5:00 PM Reading Assignments: i) Review the lecture notes. ii) Review sections 6.5, 7.1, 7.2, paperback book Electromagnetic Waves . NOTE: To save time, you can print out as many copies as you like of the empty sketch templates at the end of the problem set and attach these to you answers to problems 10.1 through 10.5. Problem 10.1: (Turn-on transient) Consider the following transmission line circuit: The source voltage is a step function given by: () () t u t V s 4 = a) Plot the voltages () t z V , + , () t z V , , and ( ) t z V , on the transmission line at time v t 2 l = . b) Plot the voltages () t z V , + , () t z V , , and ( ) t z V , on the transmission line at time v t 2 3 l = . c) Plot the voltages () t z V , + , () t z V , , and ( ) t z V , on the transmission line at time v t 2 5 l = . d) Plot the voltages () t z V , + , () t z V , , and ( ) t z V , on the transmission line at time = t . Problem 10.2: (Switching transient – load end) Consider the following transmission line circuit: Z o = 5 R s 15 15 V s ( t ) R L Z o = 50 R s 50/3 50/3 V s ( t ) R L z = - z = 0 z = - z = 0
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2 The source voltage equals 2 volts and was switched on at time
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homework10 - School of Electrical and Computer Engineering,...

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