An approach is proposied for the design, measurement and data extraction of superconducting microstrip resonators used in determination of surface resistance and penetration depth. Major sources of error are analyzed and procedures to minimize them are given.
CitacióO'callaghan, J., Sans, C., Pous, R., Collado, J., Canet, E. Accuracy considerations in surface impedance measurements. "IEEE transactions on applied superconductivity", Juny 1997, vol. 7, núm. 2, p. 1869-1872.