I am using IC cadence 6.1.3. I need
to use this expression
L = imag(Z11 - Z12Z21/Z22)
to find the inductor's self resoance frequency. However,
after I run sp analysis, the "zp" I obtained from direct plot
separate the real and imaginary part. I need to obtain a complex representation
of impedance z from the simulation result, so I can fit it into the equation
above. I tried to use zp(1 1 ?result "sp") in the output setup
expression, but apparently it doesn't give me the correct answer. If someone
know my question and can give me an answer, in IC cadence 6.1.3 after sp
analysis, how could I find the complex representation of impedance Z (Z11 Z22
Z12 Z21) that I can used in calculator to find self resonant frequency of
inductor. And how do I represent the complex expressoin of S11 S22 as well?
Please help if you know the answer. Thank you!