Analysis of power dissipation and energy storage inside a dielectric loaded cavity

A rigorous analysis of a dielectric loaded cavity from the point of view of power dissipation and energy storage is presented. The model accounts for the composite structure of the cavity, which implies a multimode representation of the resonance. Loss effects in the various parts of the structure are discussed. Measured results, in terms of unloaded Q, of an experimental cavity resonating above X-band show favourable agreement with computations.