Design and Performance of Miniaturized HTS Coplanar Waveguide Bandpass Filters with Highly Packed Meanderlines

6 Citations 10 References
  • KANAYA Haruichi
    the Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University
  • KOGA Yoko
    the Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University
  • SHINTO Tatsunori
    the Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University
  • YOSHIDA Keiji
    the Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University

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Abstract

We propose the new and highly accurate design theory of the high T_c superconducting (HTS) miniaturized coplanar waveguide (CPW) bandpass filters (BPFs) with highly packed meanderlines. BPFs are designed using the external quality factor (Q_e) and coupling constant (k) (Q-k method). These parameters are estimated from the transmission coefficient obtained by the 2.5-dimensional electromagnetic field simulator. Moreover, the Q-k method is compared with the J-b method (designed using admittance inverter and susceptance slope parameter) presented previously; in this way we confirmed that the Q-k method has higher accuracy than the J-b method. We realized the design of a the highly packed meanderline CPW BPF (5 pole, center frequency = 2 GHz, fractional band width = 15 MHz, ripple = 0.1dB) in a 3.5 mm × 8 mm substrate.

Journal

  • IEICE Trans. Electron., C

    IEICE Trans. Electron., C 85 (3), 708-713, 2002-03-01

    The Institute of Electronics, Information and Communication Engineers

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Keywords

Details

  • CRID
    1571135652318451712
  • NII Article ID
    110003220927
  • NII Book ID
    AA10826283
  • ISSN
    09168524
  • Text Lang
    en
  • Data Source
    • CiNii Articles

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