GATE EC 1994 Electromagnetics Solution Q 5

GATE EC 1994 Electromagnetics Solution Q 5

A load impedance, (200+j0) Ω is to be matched to a 50 Ω lossless transmission line by using a quarter wave line transformer (QWT). The characteristic impedance of the QWT required is ……

Ans :- 100 Ω

Explanation

We know, for quarter wave line transformer,

Z_0^2=Z_{in}Z_L \begin{array}{l}Z_0^2=\left(50\right)\;\left(200\right)\\Z_0=100\;\Omega\end{array}

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