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Power Performance of YBCO Thin Films on Sapphire Substrates at Microwave Frequencies

  • S. C. Lin
  • W. F. Hart
  • C. M. Chorey
  • K. B. Bhasin
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)

Abstract

Current high temperature superconducting (HTS) components are being assessed for application in communications satellites. To justify the routine launch of satellites with cryogenic refrigerators on board, the performance gains inherent to superconducting components must be seen in both the receiving and the transmitting systems of the satellite. In order to use HTS components in transmitters, however, better high power performance is required of the superconducting materials. The power performance of YBCO superconducting thin films on Al2O3 substrates has been examined. The measurement technique used involves inputting signals of varying power into microwave transmission lines fabricated on the films. The second and third order harmonic distortion products were observed and measured. From this data, the second and third order intercept points have been calculated, and compared to YBCO on LaAlO3. The power handling capability of the YBCO films on sapphire is improved, compared to YBCO films on lanthanum aluminate.

Keywords

Sapphire Substrate YBCO Film Order Measurement Power Handling Capability High Temperature Superconducting Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    M. Nisenoff, J. C. Ritter, G. Price, and S. A. Wolf, “The High Temperature Superconductivity Space Experiment: HTSSE I — Components and HTSSE II — Subsystems and Advanced Devices,” IEEE Trans. Appl. Supercond., Vol. AS-3, March 1993, pp. 2885–2890.CrossRefGoogle Scholar
  2. 2.
    F. A. Miranda, S. S. Toncich, K. B. Bhasin, “Performance of Two-Pole Bandpass Filters Photodefined on Double-Sided Y-Ba-Cu-O and Tl-Ba-Ca-Cu-O Thin Films,” Microwave and Optical Technology Letters, Vol. 6, October 1993, pp. 752–755.CrossRefGoogle Scholar
  3. 3.
    S. H. Talisa, M. A. Janocko, C. Moskowitz, J. Talvacchio, J. F. Billing, R. Brown, D. C. Buck, C. K. Jones, B.R. McAvoy, G. R. Wagner, and D. H. Watt, “Low- and High-Temperature Superconducting Microwave Filters,” IEEE Trans. Microwave Theory and Techniques, Vol. 39, No. 9, 1991.Google Scholar
  4. 4.
    H. Javadi et al., “Low-Noise Hybrid Superconductor / Semiconductor 7.4 GHz Receiver Downconverter for NASA Applications,” SPIE Proc. 2156 on High Tc Superconductors and Applications, pp. 101–106, 1994.Google Scholar
  5. 5.
    Z-Y. Shen and C. Wilker, “Raising the Power-Handling Capacity of HTS Circuits”, Microwaves & RF. April 1994, pp. 129–138.Google Scholar
  6. 6.
    A. M. Ferendeci, S. L. Lu, C. M. Jackson, K. B. Bhasin, C. Mueller, “Two-Tone Intermodulation Distortion in High Tc Superconducting Thin Films,” SPEE Proc. 2156 on High Tc Superconductors and Applications, 1994.Google Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • S. C. Lin
    • 1
  • W. F. Hart
    • 1
    • 2
  • C. M. Chorey
    • 1
  • K. B. Bhasin
    • 1
  1. 1.National Aeronautics and Space AdministrationLewis Research CenterClevelandUSA
  2. 2.The Ohio State UniversityColumbusUSA

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