GATE EC 1988 Electromagnetics Solution Q 4

GATE EC 1988 Electromagnetics Solution Q 4

A Two-wire transmission line of characteristic impedance Z_0 is connected to a load of impedance Z_L\left(Z_L\neq Z_0\right). Impedance matching cannot be achieved with

(a) a quarter – wavelength transformer

(b) a half – wavelength transformer

(c) an open – circuited parallel stub

(d) a short – circuited parallel stub

Ans :- b)

Explanation

With \frac\lambda2transformer Z_L=Z_{in} so we cannot achieve the matching.

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