A Novel Compact HTS Interdigital Bandpass Filter Using CPW Quarter-Wavelength Resonators

• MA Zhewang

  Department of Electrical and Electronic Systems, Saitama University

• KAWAGUCHI Tamio

  Department of Electrical and Electronic Systems, Saitama University

• KOBAYASHI Yoshio

  Department of Electrical and Electronic Systems, Saitama University

• KOIZUMI Daisuke

  NTT DoCoMo, Inc., Wireless Laboratories

• SATOH Kei

  NTT DoCoMo, Inc., Wireless Laboratories

• NARAHASHI Shoichi

  NTT DoCoMo, Inc., Wireless Laboratories

抄録

A novel high temperature superconducting interdigital bandpass filter is proposed by using coplanar waveguide quarter-wavelength resonators. The CPW resonators are arranged in parallel, and consequently the filter becomes very compact. The filter is a 5-pole Cheby-shev BPF with a midband frequency of 5.0GHz and an equal-ripple fractional bandwidth of 3.2%. It is fabricated using a YBCO film deposited on an MgO substrate. The measured filtering characteristics agree well with EM simulations and show a low insertion loss in spite of the small size of the filter.

収録刊行物

• IEICE transactions on electronics

  IEICE transactions on electronics 89 (2), 140-144, 2006-02-01

  一般社団法人電子情報通信学会

キーワード

• high temperature superconductor
• coplanar waveguide
• bandpass filter

詳細情報

• CRID: 1571980076868292608
• NII論文ID: 110004657594
• NII書誌ID: AA10826283
• ISSN: 09168524
• 本文言語コード: en
• データソース種別:
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