The microwave response of stripline coupled Josephson junctions were investigated for sputtered Nb-NbOx-Pb tunnel junctions.
Microwave-striplines were fabricated using evaporated SiO films as dielectric layers and evaporated Pb films as ground electrodes.
It was found that when one junction used as a microwave generator was biased at the voltage of self-induced steps on its I-V char acteristics, microwave induced steps were observed on the I-V characteristics of the other junction which was used as a detector.
The result of this experiment shows their potential use as microwave generators and detectors.