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2013 Fiscal Year Final Research Report

Study on a RF-SAW filter made of diamond

Research Project

  • PDF
Project/Area Number 23560387
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Electron device/Electronic equipment
Research InstitutionChiba University

Principal Investigator

FUJII SATOSHI  千葉大学, 産学連携・知的財産機構, 特任教授 (30598933)

Co-Investigator(Renkei-kenkyūsha) HASHIMOTO Kenya  千葉大学, 工学研究科, 教授 (90134353)
OMORI Tatsuya  千葉大学, 工学研究科, 助教 (60302527)
Project Period (FY) 2011 – 2013
Keywords弾性表面波 / ダイヤモンド
Research Abstract

Diamond has the highest known SAW phase velocity, sufficient for applications in the gigahertz range. In addition, diamond is also free from rare earth and rare metal materials. Although numerous studies have demonstrated SAW devices on polycrystalline diamond thin films, all of these devices have a much larger propagation loss than single-crystal materials such as LiNbO3. Hence, we fabricated and characterized one-port SAW resonators on single-crystal diamond to identify and minimize sources of propagation loss. A series of one-port resonators were fabricated, and their characteristics were measured. The best performing device using a diamond single crystal exhibited a resonance frequency of 5.2 GHz, and the equivalent circuit model gave a quality factor of 8346. Thus, the propagation loss was found to be only 0.004 dB/wavelength. The result shows that single-crystal diamond SAW resonators have great potential for use in RF-filters as sustainable SAW devices.

  • Research Products

    (9 results)

All 2013 2012 2011 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (6 results)

  • [Journal Article] Low propagation loss in a one-port SAW resonator fabricated on single-crystal diamond for super high frequency applications2013

    • Author(s)
      S. Fujii, T. Odawara, H. Yamada, T. Omori, K. Hashimoto, H. Torii, H. Umezawa, S. Shikata
    • Journal Title

      IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control

      Volume: Vol.60 Pages: 986-992

    • Peer Reviewed
  • [Journal Article] IEEE Transactions on Ultrasonics2012

    • Author(s)
      S. Fujii, C. Jian
    • Journal Title

      Ferroelectrics, and Frequency Control

      Volume: vol.59 Pages: 2758-2764

    • Peer Reviewed
  • [Journal Article] High frequency surface acoustic wave filter based on diamond thin film2011

    • Author(s)
      S. Fujii
    • Journal Title

      Phys. Status Solidi A 208

      Volume: No. 5 Pages: 1072-1077

    • Peer Reviewed
  • [Presentation] Low propagation loss in a one-port resonator fabricated on single-crystal diamond2013

    • Author(s)
      S. Fujii, H. Yamada, T. Omori, K. Hashimoto, H. Torii, H. Umezawa, S. Shikata
    • Organizer
      IEEE International Microwave Symposium
    • Place of Presentation
      米国, シアトル(TU1D-6-1~3)
    • Year and Date
      20130000
  • [Presentation] High Frequency SAW Devices Using a Single Crystal Diamond2012

    • Author(s)
      S. Fujii, H. Yamada, T. Omori, K. Hashimoto, H. Torii, H. Umezawa, S. Shikata
    • Organizer
      Proc. 2012 Int'l Symp. on Acoustic Wave Devices for Future Mobile Comm. Systems
    • Place of Presentation
      千葉市
    • Year and Date
      20120000
  • [Presentation] Study on a one-port SAW resonator using a single crystal diamond2012

    • Author(s)
      S. Fujii, H. Yamada, T. Omori, K. Hashimoto, H. Torii, H. Umezawa, S. Shikata
    • Organizer
      International Union of Material Research Societies- International Conference on Electronic Materials
    • Place of Presentation
      横浜市
    • Year and Date
      20120000
  • [Presentation]2011

    • Author(s)
      S. Fujii, T. Odawara, T. Omori, K. Hashimoto, H. Torii, H. Umezawa, S. Shikata
    • Organizer
      IEEE Ultrasonic Symposium
    • Year and Date
      20110000
  • [Presentation] 単結晶ダイヤモンドを用いた高周波SAW共振子2011

    • Author(s)
      山田晴也, 藤井知, 小田原達矢, 大森達也, 橋本研也, 鳥居博典, 梅澤仁, 鹿田真一
    • Organizer
      ダイヤモンドシンポジウム
    • Place of Presentation
      つくば市
    • Year and Date
      20110000
  • [Presentation] 単結晶ダイヤモンドを使った1ポートSAW共振子

    • Author(s)
      藤井知, 小田原達矢, 山田晴也, 大森達也, 橋本研也, 鳥居博典, 梅澤仁, 鹿田真一
    • Organizer
      日本学術振興会弾性波素子技術第150委員会第121回研究会資料
    • Place of Presentation
      東京

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Published: 2015-07-16  

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