“…II.B.l. The use of suitable reactive decoupling circuit elements allows the junctions to be connected in parallel at dc while maintaining an rf-series configuration-i.e., the same microwave current passes through all the junctions (Lindelof et al, 1979;Likharev, 1979;Sandell et al, 1979b;Jain et aly 1980;Jain, Mankiewich, and Lukens, 1980). Such a configuration, however, poses new problems of its own (see Sec.…”