Exam Questions Papers - Engineering

Q1:

One of a loss-less transmission line having the characteristic impedance of 75 Ω and length of 1cm is short-circuit. At 3 GHz, the input impedance at the other end of the transmission line is

A 0

B resistive

C capacitance

D inductive

ANS:D - inductive

X = 10 cm, ZL = 0, βl = Thus Zin is Z0which is inductive.