TELECOMMUNICATIONS AND RADIO ENGINEERING - 2011 Vol. 70,
No 14 		 

 

 

 

GRAZING INCIDENCE REFLECTIVITY OF HIGH-TC SUPERCONDUCTORS: MM WAVE TECHNIQUE OF CONDUCTIVITY MEASUREMENTS



A.I. Gubin, N.T. Cherpak, & A.A. Lavrinovich
A. Usikov Institute of Radio Physics and Electronics,
National Academy of Sciences of Ukraine
12, Academician Proskura St., Kharkiv 61085, Ukraine
Address all correspondence to A.I. Gubin E-mail: gubin@ire.kharkov.ua

Abstract
Non-resonant nondestructive technique has been described for investigation of high-temperature superconductive and relative materials through the measurement of the microwave reflection at grazing incidence. As authors discussed earlier, a reflection coefficient of the electromagnetic wave at grazing incidence can be used to determine an absolute complex conductivity over a wide temperature and frequency range. As of now the experimental measurement setup was realized in millimeter wave range using waveguide phase bridge based approach. The conductivity of YBa2Cu3O7-? film was measured at temperatures higher than critical.

KEY WORDS:grazing incidence reflectivity, microwave conductivity, superconducting films

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pages 1277-1285

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