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Tl-Ca-Ba-Cu-O Thin Film Passive Microwave Devices

  • Michael S. Schmidt
  • Roger Forse
  • Robert B. Hammond
  • Michael M. Eddy
  • William L. Olson
Conference paper

Abstract

We report results on several passive microwave devices fabricated and tested using epitaxial thin films of Tl2CaBa2Cu2O8 grown on LaAlO3. We report microstrip resonators with unloaded Q’s of 15,000 at 80K and 4.83 GHz, and 1440 at 80K and 33 GHz. We report a superconducting 4.6 GHz bandreject filter with unloaded Q greater than 15,000 when operated at 77K.

Keywords

Epitaxial Thin Film Microstrip Resonator HTSC Material Transmission Line Resonator HTSC Film 
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]
    G. Muller, “Microwave Properties of High Temperature Superconductors”, Proceedings of the 4th Workshop on RF Superconductivity, KEK Tsukuba-Shi, August, 1989.Google Scholar
  2. [2]
    R. B. Hammond, G. V. Negrete, L. C. Bourne, D. D. Strother, A. H. Cardona, and M. M. Eddy, “Epitaxial Tl2CaBa2Cu2O8 thin films with low 9.6 GHz surface resistance at high power and above 77K,” Applied Physics Letters, Vol. 57, pp. 825–827, 1990.ADSCrossRefGoogle Scholar
  3. [3]
    A.A. Valenzuela and P. Russer, “High Q Coplanar Transmission Line Resonator of YBa2Cu3O7−x on MgO,” Applied Physics Letters, Volume 55, pp. 1029–1031, Sept., 1989.ADSCrossRefGoogle Scholar
  4. [4]
    R.B. Hammond, G.V. Negrete, M.S. Schmidt, M.J. Moskowitz, M.M. Eddy, D.D. Strother, and D.L. Skoglund, “Superconducting Tl-Ca-Ba-Cu-O Thin Film Microstrip Resonator and its Power Handling Performance at 77K, ” 1990 IEEE MIT-S International Microwave Symposium Digest, pp. 867–869, 1990.Google Scholar
  5. [5]
    W. G. Lyons, R. R. Bonetti, A. E. Williams, P. M. Mankiewich, M. L. O’Malley, A. C. Anderson, R. S. Withers, and R. E. Howard, “High-Tc Superconductive Microwave Filters,” Proceedings of the Applied Superconductivity Conference, Snowmass, 1990, to be published in IEEE Transactions on Magnetics.Google Scholar
  6. [6]
    S. H. Talisa, J. Billing, R. Brown, D. C. Buck, M. A. Janocko, C. K. Jones, B. R. McAvoy, C. Moskowitz, J. Talvaccio, and G. R. Wagner, “Microwave Superconducting Filters,” Proceedings of the Applied Superconductivity Conference, Snowmass, 1990, to be published in IEEE Transactions on Magnetics.Google Scholar
  7. [7]
    R. C. Hansen, “Superconducting Antennas,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 26, pp. 345–355, 1990.ADSCrossRefGoogle Scholar
  8. [8]
    D. E. Oates, A. C. Anderson, and B. S. Shih, “Superconducting Stripline Resonators and High-Tc Materials,” Technical Digest of the IEEE Microwave Symposium, Dallas, pp. 627–630, 1990.Google Scholar

Copyright information

© Springer-Verlag Tokyo 1991

Authors and Affiliations

  • Michael S. Schmidt
    • 1
  • Roger Forse
    • 1
  • Robert B. Hammond
    • 1
  • Michael M. Eddy
    • 1
  • William L. Olson
    • 1
  1. 1.Superconductor Technologies Inc.Santa BarbaraUSA

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