GATE Electronics and Communications (EC) 2020 Solved Papers

Question : 51 of 65

Marks: +1, -0

For a 2-port network consisting an ideal lossless transformer, the parameter

{S}_{21}

, (rounded off to two decimal places) for a reference impedance of

10 Ω

, is_________ .

Solution:

{S}_{12}=˙{ {S}}_{21}=\;{2 {n}}/{ {n}^{2}+1}=\;{4}/{4+1}=0.8

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