A 40 GHz band SIS receiver using Nb/Al−AlOx/Nb array junctions

  • M. Tsuboi
  • J. Inatani
  • T. Kasuga
  • R. Kawabe
  • A. Sakamoto
  • H. Iwashita
  • K. Miyazawa
Article

Abstract

A 40 GHz band SIS mixer receiver has been built using Nb/Al−AlOx/Nb array junctions and a 4.3 K closed cycle helium refrigerator. The minimum conversion loss of the mixer is 2±1 dB and the single sideband receiver noise temperature (TRX (SSB)) is as low as 110±10 K at 36 GHz. TRX (SSB) is almost constant in the IF bandwidth of 600 MHz. The mixer saturation level is as high as 15 nW, which is comparable to the injected LO power.

Key words

millimeter wave receiver SIS junctions mixer 

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Copyright information

© Plenum Publishing Corporation 1987

Authors and Affiliations

  • M. Tsuboi
    • 1
  • J. Inatani
    • 1
  • T. Kasuga
    • 1
  • R. Kawabe
    • 1
  • A. Sakamoto
    • 1
  • H. Iwashita
    • 1
  • K. Miyazawa
    • 1
  1. 1.Nobeyama Radio ObservatoryNaganoJapan

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