Input L20 L2 50 100 50 100 50 ... Z20 Z19 Z18 The figure above shows 40 linked transmission lines with characteristic impedances of Zei = 100 2 and Ze2 = 50 2. Assume the input to line 40 is a 50 ohm...

Extracted text: Input L20 L2 50 100 50 100 50 ... Z20 Z19 Z18 The figure above shows 40 linked transmission lines with characteristic impedances of Zei = 100 2 and Ze2 = 50 2. Assume the input to line 40 is a 50 ohm line. Assume the pair of transmission lines, 1 and 2, are repeated 10 times. (a.) If the individual line sections have their electri- cal lengths have ß1 L1 = 01 = 02 = B2 L2 = 1/2, Calculate the in input impedance at the input at z = Z20. (b.) Calculate the reflection coefficient r at the input.