Look into any microwave engineering book for converting S parameters to Y
parameters and Z parameters (It's a straightforward linear transformation).
Y and Z parameters tell you the current flow into a port when the other
ports either open circuited or short circuited.  From this voltage/current
relation, you can compute the equivalent capacitance.

David Nemeth
Senior Engineer
Sophia Wireless, Inc.
14225-C Sullyfield Circle
Chantilly, VA

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On
Behalf Of Mr. Indrajit Paul
Sent: Tuesday, March 23, 2004 3:49 PM
To: [email protected]
Subject: [mems-talk] Capacitance Extraction from s-params


Hi all
    I would appreciate if anyone can suggest me a method to obtain the
equivalent capacitance(frequency independent) from simulated
s-parameters(s11,s12,s21,s22).
Thanks in advance
indrajit

--


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