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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Yeo, Kenneth S.K.; Lancaster, Michael J. (2000)
Languages: English
Types: Unknown
Subjects:
This paper presents a five pole Chebyshev bandpass filter using high temperature superconducting (HTS) thin films which employed the symmetrical TM010 mode of a circular patch resonator. The filter is designed with centre frequency of 12 GHz with fractional bandwidth of 0.45%. The design is fabricated using double sided YBCO thin films on a sapphire wafer of size (0.33×22.5×39.0)mm3. The achieved unloaded Q-factor of the resonators in the fabricated filter is about 6,500 giving the filter an insertion loss of about 0.8 dB at centre frequency of 12.14 GHz
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    • [1] D. Zhang, G.-C. Liang, C. F. Shih, Z. H. Lu, and M. E. Johansson, "A 19-Pole Cellular Bandpass Filter Using 75-mm-Diameter High Temperature Superconducting Thin Films," IEEE Microw. Guilded Wave Lett., vol. 5, pp. 405-407, 1995.
    • [2] G. L. Matthaei and G. L. Hey-Shipton, "Novel Staggered Resonator Array Superconducting 2.3- GHz Bandpass Filter," IEEE Trans. Microwave Theory and Tech., vol. MTT-41, No. 12, pp. 2345-2352, 1993.
    • [3] J. S. Hong, M. J. Lancaster, D. Jedamzik, and R. B. Greed, "8-Pole Superconducting QuasiElliptic Function Filter for Mobile Communications Application," IEEE MTT-S Intl. Microwave Symp. Digest, vol. 1, pp. 367-370, 1998.
    • [4] S. H. Talisa, M. A. Janocko, C. K. Jones, B. R. McAvoy, J. Talvacchio, and G. R. Wagner, "Microwave Superconducting Filters," IEEE Trans. Mag., vol. 27, pp. 2544-2547, 1991.
    • [5] J. G. Bednorz and K. A. Muller, "Possible high Tc Superconductivity in the Ba-La-Cu-O System," Z. fur Phys., vol. 64, p. 189, 1986.
    • [6] H. Chaloupka, M. Jeck, B. Gurzinski, and S. Kolesov, "Superconducting Planar Disk Resonators and Filters with high power handling capability," Electron. Lett., vol. 32, pp. 1735-1737, 1996.
    • [7] S. Kolesov, H. Chaloupka, A. Baumfalk, F.-J. Goertz, and M. Klauda, "High Temperature Superconducting Disk Resonator Filters with High Power Handling Capability," ISEC, vol. 6, pp. 272-274, 1997.
    • [8] A. Baumfalk, H. Chaloupka, M. Klauda, S. Kolesov, and C. Neumann, "HTS Power Filters for Output Multiplexers in Satellite Communications," Appl. Supercond. Conf., 1998.
    • [9] None, EM User's Manual. : Sonnet Software, Inc., 1993.
    • [10] T. Hayashi, T. Mikazuki, N. Suzuki, and Y. Nagai, "Coupling Structure for Superconducting Disk Filters," Electron. Lett., vol. 30, pp. 1424-1425, 1994.
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