Design and preparation of single-chip HTS coplanar waveguide bandpass filters

Haruichi Kanaya, Takuhiro Nakamura, Kazumi Sashiyama, Keiji Yoshida, Tetsuji Uchiyama, Hisashi Shimakage, Zhen Wang

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


An extremely low-loss, sharp cut-off, single-chip high-temperature superconducting (HTS) coplanar waveguide (CPW) bandpass filter (BPF) was designed and prepared; such filters are useful for future telecommunications systems. A nine-pole CPW BPF having a centre frequency (f0) of 10 GHz and fractional bandwidth of 1.5% (whose chip size is less than 10 mm square) was designed, and confirmed by a computer simulation (HP-Momentum). In order to realize fully two-dimensional HTS filters, we make use of meanderline geometry and interdigital capacitance coupling. In order to make the BPF compact, we clarify the cross-coupling between meanderlines and modelling of the corner bend of the transmission lines. Experiments with a prototype miniaturized CPW BPF (three-pole) on 10 mm square YBCO film are also presented.

Original languageEnglish
Pages (from-to)978-980
Number of pages3
JournalSuperconductor Science and Technology
Issue number11
Publication statusPublished - Nov 1999
EventProceedings of the 1999 International Superconductive Electronics Conference - Berkeley, CA, USA
Duration: Jun 21 1999Jun 25 1999

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Ceramics and Composites
  • Metals and Alloys
  • Materials Chemistry
  • Electrical and Electronic Engineering


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