We report a procedure for determining both the permittivity and the permeability of a small dielectric–magnetic sample by means of a cylindrical resonator supporting the circularly symmetrical TM010-mode. The method is based on perturbation theory and involves measurements of the shift of the resonance frequency and the quality factor Q for several different sample positions.
- cavity perturbation
- cylindrical resonator
- dielectric permittivity
- magnetic permeability
Sten, J., & Koivisto, P. (2009). Determining both the permittivity and the permeability of small samples using cavity perturbation method. Measurement Science and Technology, 20(5), . https://doi.org/10.1088/0957-0233/20/5/057001