WO2009066380A1 - フィルタ、それを用いたデュプレクサおよびそのデュプレクサを用いた通信機 - Google Patents

フィルタ、それを用いたデュプレクサおよびそのデュプレクサを用いた通信機 Download PDF

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Publication number
WO2009066380A1
WO2009066380A1 PCT/JP2007/072552 JP2007072552W WO2009066380A1 WO 2009066380 A1 WO2009066380 A1 WO 2009066380A1 JP 2007072552 W JP2007072552 W JP 2007072552W WO 2009066380 A1 WO2009066380 A1 WO 2009066380A1
Authority
WO
WIPO (PCT)
Prior art keywords
thin film
piezoelectric thin
duplexer
arm
parallel
Prior art date
Application number
PCT/JP2007/072552
Other languages
English (en)
French (fr)
Inventor
Motoaki Hara
Tokihiro Nishihara
Shinji Taniguchi
Takeshi Sakashita
Tsuyoshi Yokoyama
Masafumi Iwaki
Masanori Ueda
Yasuyuki Saitou
Original Assignee
Fujitsu Limited
Fujitsu Media Devices Limited
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Limited, Fujitsu Media Devices Limited filed Critical Fujitsu Limited
Priority to CN200780100338A priority Critical patent/CN101785183A/zh
Priority to PCT/JP2007/072552 priority patent/WO2009066380A1/ja
Priority to KR1020107003647A priority patent/KR20100041846A/ko
Priority to JP2009542439A priority patent/JPWO2009066380A1/ja
Publication of WO2009066380A1 publication Critical patent/WO2009066380A1/ja
Priority to US12/712,066 priority patent/US20100148888A1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/13—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials
    • H03H9/132—Driving means, e.g. electrodes, coils for networks consisting of piezoelectric or electrostrictive materials characterized by a particular shape
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
    • H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
    • H03H9/174—Membranes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/582—Multiple crystal filters implemented with thin-film techniques
    • H03H9/586—Means for mounting to a substrate, i.e. means constituting the material interface confining the waves to a volume
    • H03H9/588—Membranes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/60—Electric coupling means therefor
    • H03H9/605—Electric coupling means therefor consisting of a ladder configuration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H03H2003/0414—Resonance frequency
    • H03H2003/0421—Modification of the thickness of an element
    • H03H2003/0428—Modification of the thickness of an element of an electrode

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

　損失が低い高性能なフィルタを提供する。直列腕に配置された直列腕圧電薄膜共振器と、並列腕に配置された並列腕圧電薄膜共振器とを有し、直列腕圧電薄膜共振器および並列腕圧電薄膜共振器は、それぞれ、基板（２１）と、基板（２１）上に形成された下部電極（２２）と、下部電極（２２）上に形成された圧電膜（２３）と、圧電膜（２３）上に形成された上部電極（２４）とを有する。直列腕圧電薄膜共振器は、共振部（２９）の短軸の長さＢに対する長軸の長さＡの比（Ａ／Ｂ）が、並列腕圧電薄膜共振器における比よりも高い。
PCT/JP2007/072552 2007-11-21 2007-11-21 フィルタ、それを用いたデュプレクサおよびそのデュプレクサを用いた通信機 WO2009066380A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN200780100338A CN101785183A (zh) 2007-11-21 2007-11-21 滤波器、使用该滤波器的双工器及使用该双工器的通信机
PCT/JP2007/072552 WO2009066380A1 (ja) 2007-11-21 2007-11-21 フィルタ、それを用いたデュプレクサおよびそのデュプレクサを用いた通信機
KR1020107003647A KR20100041846A (ko) 2007-11-21 2007-11-21 필터, 그것을 이용한 듀플렉서 및 그 듀플렉서를 이용한 통신기
JP2009542439A JPWO2009066380A1 (ja) 2007-11-21 2007-11-21 フィルタ、それを用いたデュプレクサおよびそのデュプレクサを用いた通信機
US12/712,066 US20100148888A1 (en) 2007-11-21 2010-02-24 Filter, duplexer and communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/072552 WO2009066380A1 (ja) 2007-11-21 2007-11-21 フィルタ、それを用いたデュプレクサおよびそのデュプレクサを用いた通信機

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/712,066 Continuation US20100148888A1 (en) 2007-11-21 2010-02-24 Filter, duplexer and communication apparatus

Publications (1)

Publication Number Publication Date
WO2009066380A1 true WO2009066380A1 (ja) 2009-05-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/072552 WO2009066380A1 (ja) 2007-11-21 2007-11-21 フィルタ、それを用いたデュプレクサおよびそのデュプレクサを用いた通信機

Country Status (5)

Country Link
US (1) US20100148888A1 (ja)
JP (1) JPWO2009066380A1 (ja)
KR (1) KR20100041846A (ja)
CN (1) CN101785183A (ja)
WO (1) WO2009066380A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011016332A1 (ja) * 2009-08-06 2011-02-10 太陽誘電株式会社 分波器
JP2014042330A (ja) * 2013-10-17 2014-03-06 Taiyo Yuden Co Ltd 分波器

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9654983B2 (en) 2014-04-03 2017-05-16 North Carolina State University Tunable filter employing feedforward cancellation
US9800278B2 (en) 2015-09-04 2017-10-24 North Carolina State University Tunable filters, cancellers, and duplexers based on passive mixers
WO2019028288A1 (en) * 2017-08-03 2019-02-07 Akoustis, Inc. ELLIPTICAL STRUCTURE FOR VOLUME ACOUSTIC WAVE RESONATOR
JP7205497B2 (ja) * 2018-02-02 2023-01-17 株式会社大真空 圧電フィルタ
CN115996038B (zh) * 2022-12-26 2023-08-22 北京芯溪半导体科技有限公司 一种滤波器、多工器以及通信设备

Citations (2)

* Cited by examiner, † Cited by third party
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JP2006319479A (ja) * 2005-05-10 2006-11-24 Fujitsu Media Device Kk 圧電薄膜共振子およびフィルタ
JP2007300216A (ja) * 2006-04-27 2007-11-15 Fujitsu Media Device Kk フィルタおよび分波器

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JPS60189307A (ja) * 1984-03-09 1985-09-26 Toshiba Corp 圧電薄膜共振器およびその製造方法
US6150703A (en) * 1998-06-29 2000-11-21 Trw Inc. Lateral mode suppression in semiconductor bulk acoustic resonator (SBAR) devices using tapered electrodes, and electrodes edge damping materials
US6215375B1 (en) * 1999-03-30 2001-04-10 Agilent Technologies, Inc. Bulk acoustic wave resonator with improved lateral mode suppression
DE10058339A1 (de) * 2000-11-24 2002-06-06 Infineon Technologies Ag Bulk-Acoustic-Wave-Filter
KR100398365B1 (ko) * 2001-06-25 2003-09-19 삼성전기주식회사 폭방향 파동이 억제되는 박막 공진기
JP3954395B2 (ja) * 2001-10-26 2007-08-08 富士通株式会社 圧電薄膜共振子、フィルタ、および圧電薄膜共振子の製造方法
KR100489828B1 (ko) * 2003-04-07 2005-05-16 삼성전기주식회사 Ｆｂａｒ 소자 및 그 제조방법
JP4010504B2 (ja) * 2003-06-04 2007-11-21 日立金属株式会社 マルチバンド用送受信機およびそれを用いた無線通信機
EP1673860B1 (en) * 2003-10-06 2009-11-18 Nxp B.V. Ladder-type thin-film bulk acoustic wave filter
US7161448B2 (en) * 2004-06-14 2007-01-09 Avago Technologies Wireless Ip (Singapore) Pte. Ltd. Acoustic resonator performance enhancements using recessed region
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JP2006319479A (ja) * 2005-05-10 2006-11-24 Fujitsu Media Device Kk 圧電薄膜共振子およびフィルタ
JP2007300216A (ja) * 2006-04-27 2007-11-15 Fujitsu Media Device Kk フィルタおよび分波器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011016332A1 (ja) * 2009-08-06 2011-02-10 太陽誘電株式会社 分波器
JP2011040817A (ja) * 2009-08-06 2011-02-24 Taiyo Yuden Co Ltd 分波器
US8279021B2 (en) 2009-08-06 2012-10-02 Taiyo Yuden Co., Ltd. Duplexer
JP2014042330A (ja) * 2013-10-17 2014-03-06 Taiyo Yuden Co Ltd 分波器

Also Published As

Publication number Publication date
CN101785183A (zh) 2010-07-21
US20100148888A1 (en) 2010-06-17
JPWO2009066380A1 (ja) 2011-03-31
KR20100041846A (ko) 2010-04-22

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