Automatic measurements of complex permittivity and precise analysis of results

Permittivity measurements usinq resonant cavity techniques have been the subject of numerous studies over the past forty years. Conventional cavity perturbation measurements normally use a transmission cavity, sweeper, power detector and an oscilloscope or other instrument to record the resonance curve and thereby provide the necessary information on the resonant frequency and the 0 factor to calculate the permittivity of a sample material placed within the cavity.