# A lossy transmission line of length 2.1 m has characteristic impedance of 80 + j60. When the line is short-circuited, the input impedance is 30 j12. (a) Determine and . (b) Find the input impedance when the short circuit is replaced by Z L = 40 + j30 .

Chapter 11, Problem #24

A lossy transmission line of length 2.1 m has characteristic impedance of 80 + j60Ω. When the line is short-circuited, the input impedance is 30 – j12Ω.

(a) Determine α and β.

(b) Find the input impedance when the short circuit is replaced by Z_{L }= 40 + j30 Ω.

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