International Journal of Modern Physics B
JOSEPHSON FREQUENCY MIXING BETWEEN TWO Ka BAND SIGNALS IN CERAMIC BRIDGE AT LIQUID NITROGEN TEMPERATURES
Peiheng Wu, Qilin Cheng, Shuzhen Yang, M.H. Fan, Yijun Feng, Jun Chen, Y. Li, Huanjun Lu, Xinliu Gao, Jingbo Wu, X.Y. Zhang