Title :
Microwave surface resistance measurement technique for cylindrical high-Tc superconductor
Author :
Aida, Kazuo ; Ono, Takashi
Author_Institution :
NTT Corp., Kanagawa, Japan
Abstract :
A surface-resistance measurement method using an open-circuit terminated cavity constructed from a shielded pair of cylindrical conductors is described. The validity of this technique was confirmed by an experiment with copper specimens from 1 to 8 GHz. The measured and theoretical values of the copper specimens were within 10% of each other. In addition, the microwave surface resistance of the bulk YBaCuO superconductors from various sources was evaluated from 1 to 8 GHz at 77 K.<>
Keywords :
barium compounds; electric resistance measurement; high-temperature superconductors; microwave measurement; penetration depth (superconductivity); yttrium compounds; 1 to 8 GHz; 77 K; Cu; YBaCuO; cylindrical conductors; cylindrical high-Tc superconductor; high-temperature superconductor; microwave surface resistance; open-circuit terminated cavity; shielded pair; surface-resistance measurement method; Copper; Cutoff frequency; Electrical resistance measurement; High temperature superconductors; Microwave theory and techniques; Q factor; Q measurement; Resonance; Superconducting microwave devices; Surface resistance;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38789
