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Obtain Z-parameters in terms of ABCD parameters.
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Solution:


standard equations of ABCD parameters are given by V1(S)=AV2(S)BI2(S)......(1)I1(S)=CV2(S)DI2(S)....(2)ΔT=|ABCD|=(AD)+(BC)=[ADBC]

Rearranging equation (2) CV2(s)=I1(s)+DI2(s)V2(s)=1CI1(s)+DCI2(s)

put equation (3) in (1) V1(s)=A[1CI1(s)+DCI2(s)]BI2(s)=ACI1(s)+ADCI2(s)BI2(s)=ACI1(s)+[ADBCC]I2(s)V1(s)=ACI1(s)+[ΔTC]I2(s)

from equations (3) and (4) z-parameters are, [ Z11Z12Z21Z22 ]=[ ACΔTC1CDC ] 

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