Miniaturized HTS coplanar waveguide bandpass filters with highly packed meanderlines

H. Kanaya, T. Shinto, K. Yoshida, T. Uchiyama, Z. Wang

Research output: Contribution to journalConference articlepeer-review

46 Citations (Scopus)


Design and performance of miniaturized coplanar waveguide (CPW) bandpass filters (BPFs) using high Tc superconducting (HTS) films have been studied. In order to realize the miniaturized filters, we coupled highly packed meanderline half-wavelength resonators with interdigital gaps, where admittance inverters (J inverters) were made of interdigital gaps. The exact J values, susceptance slope parameters and the length of the resonators of the meanderline are calculated from the cascade matrix (K-matrix) and scattering matrix (S-matrix) obtained by the 2.5-dimensional electromagnetic field simulator (HP-Momentum). It is shown that the size of the filters can be greatly reduced by introducing CPW with highly packed meanderline geometry (center frequency 2GHz, fractional band width 15MHz, ripple 0.1dB) packed within 10mm square substrate. Simulated performance was in good agreement with the designed one.

Original languageEnglish
Pages (from-to)481-484
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Issue number1 I
Publication statusPublished - Mar 2001
Event2000 Applied Superconductivity Conference - Virginia Beach, VA, United States
Duration: Sept 17 2000Sept 22 2000

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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