Re: Quality factor
hi mazelk:
I think yes , in fact:
as "varactor" said , we define the quality factor as : "the energy stored in the cavity divided by energy dissipated per radian of oscillation". so the definition of the quality factor depends to definition of the dissipated factor and storaged factor .
for example according to the problem boundary and problem condition if we can express the storage energy and dissipated energy in terms of the Impedance (Z) , we can define quality factor as you say : Q = [Im | Z |] / [Re | Z |]
regards.