Title :
New measurement technique of the surface impedance of superconductors using the probe-coupling type microstripline resonator
Author :
Okai, Daisuke ; Kusunoki, Masanobu ; Mukaida, Masashi ; Ohshima, Shigetoshi
Author_Institution :
Fac. of Eng., Yamagata Univ., Yonezawa, Japan
Abstract :
We have developed a probe-coupling type microstripline resonator method for accurate measurement of the surface impedance of superconductors. By this improved microstripline resonator method, the surface impedance can be measured without attaching any contacts to the film. This paper reports the accurate and reproducible measurement process of surface impedance using the probe-coupling type microstripline resonator. The surface impedance of a YBCO thin film was measured using this technique. The measured results revealed that this technique may be used for the accurate measurement of surface impedance
Keywords :
barium compounds; electric impedance measurement; high-temperature superconductors; microstrip resonators; microwave measurement; superconducting microwave devices; superconducting thin films; surface conductivity; yttrium compounds; YBCO thin film; YBa2Cu3O7; antenna length dependence; probe-coupling type microstripline resonator; quality factor; resonance frequency; superconducting microwave device design; superconductors; surface impedance measurement; temperature dependence; Antenna measurements; Impedance measurement; Measurement techniques; Microstrip resonators; Stripline; Superconducting thin films; Superconductivity; Surface impedance; Surface resistance; Yttrium barium copper oxide;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.833734
