zpar.flw

An analysis tool for both continuous- and discrete-time control systems. -Includes a parameter so

*circuit defined as 2-port z-parameters
*is terminated by impedances ZS and ZL.
*Vin is the voltage of the source.
*v2 is the output voltage of 2-port.

vin i1 1/(ZS+z11)
i1 i2 -z21/(z22+ZL)
i2 i1 -z12/(ZS+z11)
i2 v2 -ZL

.pre syms z21 z11 z12 z22 ZS ZL
*finding transfer function from vin to v2
*i.e v2/Vin
.tf vin v2

*also, find transfer functin from 2-port's
*input voltage to v2.
.post ZS=0