A two-port network is represented by ABCD parameters given by[V1I1]=[A – InterviewSolution

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1.	A two-port network is represented by ABCD parameters given by[V1I1]=[ABCD][V2−I2]If port-2 is terminated by RL, the input impendance seen at port-1 is given by
Answer» A two-port network is represented by ABCD parameters given by $[\begin{matrix} V_{1} I_{1} \end{matrix}] = [\begin{matrix} A & B C & D \end{matrix}] [\begin{matrix} V_{2} - I_{2} \end{matrix}]$ If port-2 is terminated by $R_{L}$ , the input impendance seen at port-1 is given by

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