Quiz 3 Soln

# Quiz 3 Soln - NAME QUIZ 2 ECEN 322 Measurements on a 75...

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NAME: QUIZ 2 ECEN 322 Measurements on a 75 - Ω slotted line indicate that S = 2 . 5 , the distance between successive voltage minima is 25 [cm], and the ﬁrst voltage minimum is located 15 [cm] from the load. Use the Smith chart to determine: ( a ) the load impedance Z L ; ( b ) the input admittance Y in 35 [cm] from the load. [NB: Mark all important points on the chart and explain, step by step, your solution procedure.] Solution : ( a ) Mark the point r max = S = 2 . 5 as A and draw the SWR circle through this point. λ = 2 × 25 [cm] = 50 [cm] , min = 15 / 50 = 0 . 3 The voltage minimum occurs at point B , where the SWR circle passes through r min = 1 /S . From this point, located at 0 WTL, move a distance 0.3 TL (counter-clockwise), to a point at 0.3 WTL. Draw a radial line through this point and mark its intersection with SWR circle as C . At point

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## This note was uploaded on 10/27/2010 for the course ECEN 314 taught by Professor Halverson during the Spring '08 term at Texas A&M.

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Quiz 3 Soln - NAME QUIZ 2 ECEN 322 Measurements on a 75...

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