Question

3. Consider the schematic below. The VPULSE part effectively applies a 0V-to-10V step at time 20 nanoseconds. The source resistance is RS and represents the internal impedance of the function generator. The velocity of the transmission line is such that it takes a pulse 100ns to travel from one end of the line to the other. (The length and period of the pulse are made long enough that the pulse will not go low during the time we are considering it. Effectively, the VPULSE part goes from 0 to +10V and stays there, emulating a 0-to-10V step function for the first 4ms or so.) RS T1 Vin Vout V1 = 0V V2 10V TD 20ns TR = 1ns 50 RL 225 V1 PW 3000ns PER 4000ns TD 100ns (a) Calculate the reflection coefficient at the load (b) Calculate the reflection coefficient at the source (c) Calculate the first non-zero voltage to appear at node Vin. (Note that initially the source has no way of knowing that (d) Calculate the first non-zero voltage to appear at node Vout. (Note that the incident and reflected waves superimpose (e) Calculate the second non-zero voltage to appear at node Vin. (Again, the incident and reflected ways superimpose a load RL=225 ohms is attached. It can only see Z0=75 ohms.) simultaneously.) simultaneously. These waves will add on top of the voltage that is already present.)

Do the math correctly please, I'll know if you just copy the math of other answers

Answer 1

50ル i+o) ZLIZo 225へ ะไ225-75. ナ Secend non