Design of a miniaturized superconducting bandpass filter by evaluating the kinetic inductance in the K-inverter

Haruichi Kanaya, Koji Kawakami, Keiji Yoshida

Research output: Contribution to journalArticle

2 Citations (Scopus)


We propose a design theory of the miniaturized high temperature superconducting (HTS) coplanar waveguide (CPW) bandpass filter (BPF), which is composed of meanderline quarter-wavelength resonator, J- and K-inverters. The J- and K-inverters are realized by using interdigital gap and meander-shape inductor. To evaluate the kinetic inductance of the K-inverter, we fabricate the YBCO resonator connected with K-inverters and redesigned the YBCO filter parameters. Finally, we designed and fabricated the YBCO CPW quarter-wavelength resonator BPF by taking account of the kinetic inductance of the K-inverter. The experimental results are in agreement with the design parameters.

Original languageEnglish
Pages (from-to)145-149
Number of pages5
JournalIEICE Transactions on Electronics
Issue number2
Publication statusPublished - Feb 2006


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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