Development of 0.5-V Josephson junction array devices for quantum voltage standards
Wang Lanruo1, Li Jinjin2, 3, †, Cao Wenhui2, 3, Zhong Yuan2, 3, Zhang Zhonghua2, 3
       

The 1st step current range as a function of frequency from 15 GHz to 20 GHz for the four sub-arrays.