Multi-Josephson junction transmission line

This paper reports the phenomena produced in transmission line containing multi-Josephson junctions. The presented model consists of a distributed Josephson line connected by successive inductances and Josephson junctions, and a lossless transmission line. In this paper, a procedure of modeling the multi-Josephson transmission line is introduced and then the phenomena produced in the line is analyzed by use of computer-aided technique. The results of simulation show that the most important effect on switching operation is the mismatched effect of the characteristic impedance to the output load resistance. The relations between the produced phenomena such as oscillation frequency, propagation delay and output voltage, and circuit parameters are illustrated. This analysis shows profitable results for designing the Josephson logic circuit with transmission line.