EEE445_hw03sln

EEE445_hw03sln - EEE 445 Homework#3 Solutions 2.19 Use the...

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EEE 445 Homework #3 Solutions 2.19 Use the Smith chart to find the following quantities for the transmission line circuit below: (a) The SWR on the line. (b) The reflection coefficient at the load. (c) The load admittance. (d) The input impedance of the line. (e) The distance from the load to the first voltage minimum. (f) The distance from the load to the first voltage maximum. Solution: The solution has been obtained using the Smith chart shown in Figure 2. (a) 5 . 2 SWR (b) 55 42 . 0 L (c) S 0082 . 0 01 . 0 41 . 0 5 . 0 j Y j y L L (d) 20 5 . 24 4 . 0 49 . 0 j Z j z in in (e) 326 . 0 076 . 0 25 . 0 min d (f) 076 . 0 174 . 0 25 . 0 max d
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Smith Chart for solving Problem 2.19. 2.25 Design a quarter-wave matching transformer to match a 40 load to a 75 line. Plot the SWR for 0 . 2 / 5 . 0 0 f f , where f 0 is the frequency at which the line is /4 long. Solution:
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This note was uploaded on 12/14/2010 for the course EEE 445 taught by Professor Georgepan during the Fall '10 term at ASU.

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EEE445_hw03sln - EEE 445 Homework#3 Solutions 2.19 Use the...

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