• D. F. Williams, M. D. Janezic, A. Ralston, S. List, "Quasi-TEM model for coplanar waveguide on silicon," 1997 EPEP Conference Digest, pp. 225-228, Oct. 27-29, 1997.

hi all,
 I am a  masters student at Indian institute of
science, bangalore and am working on RF MEMS based
distributed phase-shifter.
  I had a doubt regarding the modelling of the
substrate losses in a periodically loaded transmission
line.
Is there any possible way to find an equivalent
circuit for the substrate losses, probably some
resistance(depending on the measured attenuation
values) can be incorporated in the equivalent circuit.
Please clarify.
                                                     
                        
Also do you have any information regarding the effect
of DC bias on substrate losses i.e.  when we apply DC
to the central conductor in CPW,for actuation, does it
effects the substrate loss .
                                                     
                        
Thanks
Indrajit


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