A Fixed Tuned Low Noise 600-700 GHz SIS Receiver

  • C. C. Chin
  • M. J. Wang
  • W. L. Shah
  • W. Zhang
  • H. W. Cheng
  • S. C. Shi
  • T. Noguchi


We have designed and fabricated a fixed tuned low noise 600-700 GHz SIS mixer. Twin junctions connected in parallel was employed in the mixer design. A short microstrip tuning structure was used to minimize the RF signal loss at frequency above the energy gap. A receiver noise temperature below 200 K (without any loss correction) in the frequency range of 630 to 660 GHz was recorded. The lowest noise temperature of the receiver was 181 K (without any loss correction) at 656 GHz.

Sub-mm-waves SIS mixers and Receivers 


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  1. [1]
    Mattis D.C., and Bardeen J., Theory of the Anomalous Skin Effect in Normal and Superconducting Metals, Physical Review, Vol. 111,#2, 1958, p.413.Google Scholar
  2. [2]
    Tong C.-Y. E., Blundell R., Papa D.C., Barrett J.W., Paine S., and Zhang X., A Fixed Tuned Low Noise SIS Receiver for the 600 GHz Frequency Band, Sixth International Symposium on Space Terahertz Technology, 1995, p. 295.Google Scholar
  3. [3]
    Tong Cheuk-yu Edward, Blundell Raymond, Bumble Bruce, Stern Jeffrey A., LeDuc Henry G., Sub-millimeter Distributed Quasiparticle Receiver Employing a Non-Linear Transmission Line, Seventh International Symposium on Space Terahertz Technology, 1996, p. 47.Google Scholar
  4. [4]
    Kooi J.W., Chan M.S., LeDuc H.G. and Phillips T.G., A 665 GHz Waveguide Receiver Using a Tuned 0.5µm2Nb/AlOx/Nb SIS Tunnel Junction, Seventh International Symposium on Space Terahertz Technology, 1996, p. 76.Google Scholar
  5. [5]
    Gaidis C. Michael, LeDuc Henry, Bin Mei, Miller David, Stern Jeffrey A. and Zmuidzinas, Characterization of Low-Noise Quasi-Optical SIS Mixers for the Submillimeter Band, IEEE Transactions on Microwave Theory and Techniques, Vol. 44,#7, 1996, p.1130.Google Scholar
  6. [6]
    Noguchi T., Sakamoto A. and Ochiai S., Fabrication of Sub-micron SIS junctions, Tech. Rep. IEICE, vol. 93, 1994, p. 43.Google Scholar
  7. [7]
    Shi Sheng-Cai, Noguchi Takashi, and Inatani Junji, Development of a 500-GHz Band SIS Mixer, IEEE Trans. Applied Superconductivity, 1997, p.2587Google Scholar
  8. [8]
    Noguchi T., Shi S.C., and Inatani J., An SIS mixer using two junctions connected in parallel, IEEE Trans. Appl. Superconductivity, Vol. 5, 1995, p.2228.Google Scholar
  9. [9]
    Noguchi T., Shi S.C., and Inatani J., Parallel connected twin junctions for millimeter and submillimeter wave SIS mixers: analysis and experimental verification, IEICE Trans. Electronics, Vol. E78-c, 1995, p.481.Google Scholar
  10. [10]
    Blundell R., Private Communication.Google Scholar
  11. [11]
    Blundell Raymond, Tong Cheuk-Yu, Papa D. Cosmo, Leombruno Louie, Zhang Xiaolei, Paine Scott, Stern A. Jeffrey, LeDuc G. Henry and Bumble Bruce, A Wideband Fixed-Tuned SIS Receiver for 200-GHz Operation, IEEE Tanscations on Microwave Theory and Techniques, Vol. 43,No.4, April, 1995, p.933.Google Scholar
  12. [12]
    Shi Sheng-Cai, Chin Chi-Chung and Wen Zhang, Characterization of Nb-based Superconducting Microstrip Lines around the Gap Frequency, Int. J. IR & MM Waves, Vol.21,No.21, Dec 2000, p. 2007.Google Scholar
  13. [13]
    Shi Sheng-Cai, Quantum-Limited Broadband Mixers with Superconducting Tunnel Junctions at Millimeter and Submillimeter Wavelengths, Ph.D thesis, The Graduate University for Advanced Studies, Nobeyama, Japan, 1996.Google Scholar
  14. [14]
    Shi S.C., Shan W.L., Zhang W., Chin C.C., Wang M.J., Cheng H.W., and Noguchi, T., Development of a 600–720 GHz SIS Mixer, To be published in the proceeding of the 12th International Symposium on Space Terahertz Technology, 2001.Google Scholar
  15. [15]
    High Frequency Structure Simulator (HFSS), version 8.0, Ansoft Corporation, Pittsburgh, PA, USA.Google Scholar
  16. [16]
    Blundell R., Miller R.E. and Gundlach K. H., Understanding noise in SIS receivers, Int. J. IR & MM Waves, vol. 13, 1992, p.3-6.Google Scholar
  17. [17]
    Ke Q., Feldman M. J., A technique for accurate noise temperature measurements for the superconducting quasiparticle receiver, Proceeding of 4th International Symposium Space Terahertz Technology, Los Angeles, CA, 1993, P. 33-40.Google Scholar

Copyright information

© Plenum Publishing Corporation 2002

Authors and Affiliations

  • C. C. Chin
    • 1
  • M. J. Wang
    • 1
  • W. L. Shah
    • 2
  • W. Zhang
    • 2
  • H. W. Cheng
    • 3
  • S. C. Shi
    • 2
  • T. Noguchi
    • 4
  1. 1.Academia Sinica, NankangInstitute of Astronomy and AstrophysicsTaipeiTaiwan, China
  2. 2.Herzberg InstituteVictoriaCanada
  3. 3.Purple Mountain ObservatoryNanjingChina
  4. 4.Academia SinicaInstitute of Astronomy and AstrophysicsNankang, TaipeiTaiwan, China

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