On the measurement of microwave absorption of bulk YBaCuO superconductors in X-band (8–12 GHz)

Abstract

A~traet. Microwave absorption at the surface of high Tc YBaCuO superconducting sample has been determined in X-band by measuring VSWR. Power reflectivity > 98Vo has been observed in the frequency range of 8.2-10.5GHz indicating very low absorption at the surface. At some of the frequencies, however, negligible microwave loss has been observed.