A 7-8.5 GHz high performance MMIC HTS josephson mixer

Ting Zhang, Jia Du, Yingjie Jay Guo, Xiaowei Sun

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


A low-loss, low power consumption monolithic high-temperature superconducting (HTS) Josephson junction mixer at 7-8.5 GHz is presented. The mixer consists of a HTS YBa 2Cu 3O 7-x (YBCO) bandpass filter for RF input, a lowpass filter for IF output and a LO resonator integrated with a single Josephson junction. All the passive and active devices are fabricated on a 20 mmtimes 10 mm MgO substrate. Measurement result shows a conversion gain of -7 dB at 40 K, and -4.7 dB at 20 K. The IF output versus the RF input exhibits a wide linear range of conversion gains. The mixer has an extremely low LO power requirement at -32 dBm and a 50 nW power consumption.

Original languageEnglish
Article number6560427
Pages (from-to)427-429
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number8
Publication statusPublished - 2013
Externally publishedYes


  • High temperature superconductor
  • Josephson mixer
  • low loss
  • low power
  • MMIC


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