About the z parameters in spiral inductors .

i have read about the z-parameters and currently doing inductor modelling in high frequency cmos tech.
i wanted to know that how we can obtain the z parameters in the two-port spiral inductor as shown in the given link :

https://encrypted-tbn0.google.com/im...ynRhPwtiR9pUbo

Eventough there are some formuleas to calculate inductance value of square planar inductors,you should simulate it and obtain s,z parameters.

ok but whatz the significance of s and z parameters ?

They are used to characterize your inductor.If your model is defined by s or z parameters, your should find them by simulations, it's clear...