Park, J.-H. Park, J.-G. 2024-01-19T17:33:58Z 2024-01-19T17:33:58Z 2021-09-02 2020-05 2523-3971 https://pubs.kist.re.kr/handle/201004/118701 Effects of cavity material on the Q-factor measurement of microwave dielectric materials were studied by HFSS simulation and the measurements using metal cavity. TE01δ mode resonant frequency was determined from the electric and magnetic field patterns and the Q-factor was calculated from the 3？dB bandwidth of resonant peak at the scattering matrix S21 spectrum. In the cavity resonator method, Cu metal cavity has been generally used. However, the oxidized surface of Cu cavity could generate errors in Q-factor measurements. From the simulation, it is observed that the Q-factor significantly decreased with decreasing conductivity of cavity metal. When the conductivity of the oxidized Cu is assumed as 1000？Ω？1？m？1, the Q-factor could be decreased by 80% compared to pure Cu. ？ 2020, Springer Nature Switzerland AG. English Springer Nature Acoustic resonators Copper Dielectric materials Electromagnetic simulation Natural frequencies Uncertainty analysis Cavity materials Electric and magnetic fields HFSS simulation Metal cavities Microwave dielectric materials Oxidized surfaces Resonant peaks Scattering matrices Q factor measurement Uncertainty analysis of Q-factor measurement in cavity resonator method by electromagnetic simulation Article 10.1007/s42452-020-2819-8 1 SN Applied Sciences, v.2, no.5 SN Applied Sciences 2 5 scopus 2-s2.0-85100762040 Article Acoustic resonators Copper Dielectric materials Electromagnetic simulation Natural frequencies Uncertainty analysis Cavity materials Electric and magnetic fields HFSS simulation Metal cavities Microwave dielectric materials Oxidized surfaces Resonant peaks Scattering matrices Q factor measurement Cavity Dielectric materials Microwave Q-factor Simulation