Anyone has idea on how to convert conductivity to loss tangent or vice versa?? For a si wafer, with conductivity 8S/m, what is the loss tangent at 10GHz??
e_c = e' - je'' - complex permittivity
tan_d = e''/e' - loss tangent
s = omega*e'' - conducativity (alternating)
From the above equations:
s = tan_d*omega*e'
where,
omega: frequency of use
e': real part of complex permittivity
Hope this helps.
enjoy!
mogwai.
ps. References are:
Paris-Hurd "Basic Electromagnetic Theory"
Balanis "Advanced Engineering Electromagnetics" and
von Hippel "Dielectric Materials and Applications"