WO2009013974A1 - 弾性表面波装置及び通信装置 - Google Patents

弾性表面波装置及び通信装置 Download PDF

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Publication number
WO2009013974A1
WO2009013974A1 PCT/JP2008/061854 JP2008061854W WO2009013974A1 WO 2009013974 A1 WO2009013974 A1 WO 2009013974A1 JP 2008061854 W JP2008061854 W JP 2008061854W WO 2009013974 A1 WO2009013974 A1 WO 2009013974A1
Authority
WO
WIPO (PCT)
Prior art keywords
saw
electrodes
saw elements
idt electrodes
surface wave
Prior art date
Application number
PCT/JP2008/061854
Other languages
English (en)
French (fr)
Inventor
Hiroyuki Tanaka
Takehiro Okumichi
Original Assignee
Kyocera Corporation
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 Kyocera Corporation filed Critical Kyocera Corporation
Priority to JP2009524431A priority Critical patent/JP5110611B2/ja
Priority to US12/670,103 priority patent/US8427258B2/en
Publication of WO2009013974A1 publication Critical patent/WO2009013974A1/ja

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
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14552—Transducers of particular shape or position comprising split fingers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0033—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only
    • H03H9/0038—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only the balanced terminals being on the same side of the track
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/02763—Left and right side electrically coupled reflectors
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02952—Means for compensation or elimination of undesirable effects of parasitic capacitance
    • 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
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • H03H9/14582—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers having a different pitch
    • 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
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • H03H9/14585—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers being split
    • 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
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14588—Horizontally-split transducers
    • 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
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H03H9/644—Coupled resonator filters having two acoustic tracks
    • H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6469—Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

　ＳＡＷ装置は、圧電基板１上に３個以上の奇数個のＩＤＴ電極４～９と、反射器電極１０～１３とを有する第１及び第２のＳＡＷ素子２，３と、第１及び第２のＳＡＷ素子２，３を縦続接続する接続配線１６と、第１のＳＡＷ素子２の両端のＩＤＴ電極４，６に接続された第１の不平衡信号端子１４と、第２のＳＡＷ素子３の両端のＩＤＴ電極７，９に接続された第２の不平衡信号端子１５と、を具備し、第１及び第２のＳＡＷ素子２，３はそれぞれ中央のＩＤＴ電極５，８の一方のバスバー電極１７が２分割され、第１及び第２のＳＡＷ素子２，３の少なくとも一方の中央のＩＤＴ電極の非分割のバスバー電極１８，１９が基準電位電極に接続されており、接続配線１６は平衡信号配線とされている。
PCT/JP2008/061854 2007-07-26 2008-06-30 弾性表面波装置及び通信装置 WO2009013974A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2009524431A JP5110611B2 (ja) 2007-07-26 2008-06-30 弾性表面波装置及び通信装置
US12/670,103 US8427258B2 (en) 2007-07-26 2008-06-30 Surface acoustic wave device and communication device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007194327 2007-07-26
JP2007-194327 2007-07-26
JP2007-316788 2007-12-07
JP2007316788 2007-12-07

Publications (1)

Publication Number Publication Date
WO2009013974A1 true WO2009013974A1 (ja) 2009-01-29

Family

ID=40281233

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061854 WO2009013974A1 (ja) 2007-07-26 2008-06-30 弾性表面波装置及び通信装置

Country Status (3)

Country Link
US (1) US8427258B2 (ja)
JP (1) JP5110611B2 (ja)
WO (1) WO2009013974A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120098618A1 (en) * 2009-06-26 2012-04-26 Kyocera Corporation Surface Acoustic Wave Filter and Duplexer Using Same
JP5497795B2 (ja) * 2010-01-12 2014-05-21 京セラ株式会社 弾性波装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6116120B2 (ja) * 2012-01-24 2017-04-19 太陽誘電株式会社 弾性波デバイス及び弾性波デバイスの製造方法
EP2830217B1 (en) * 2012-03-22 2018-02-21 Murata Manufacturing Co., Ltd. Vertically coupled resonator-type elastic surface wave filter
JP6134550B2 (ja) * 2013-03-22 2017-05-24 スカイワークスフィルターソリューションズジャパン株式会社 弾性波装置およびそれを用いたアンテナ共用器
US9628047B2 (en) 2014-07-07 2017-04-18 Skyworks Filter Solutions Japan Co., Ltd. Acoustic wave devices, and antenna duplexers, modules, and communication devices using same
WO2016056384A1 (ja) * 2014-10-06 2016-04-14 株式会社村田製作所 ラダー型フィルタ及びデュプレクサ
US10110201B2 (en) * 2015-09-16 2018-10-23 Airoha Technology Corp. Surface acoustic wave filter devices
DE102016106185A1 (de) * 2016-04-05 2017-10-05 Snaptrack, Inc. Breitbandiges SAW-Filter
US10873319B2 (en) * 2018-11-05 2020-12-22 Qorvo Us, Inc. Compensation structures for radio frequency filtering devices

Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH06268476A (ja) * 1993-03-11 1994-09-22 Murata Mfg Co Ltd ２段接続型多電極弾性表面波装置
JPH0879000A (ja) * 1994-09-07 1996-03-22 Toshiba Corp 弾性表面波フィルタ
JP2003249842A (ja) * 2001-12-21 2003-09-05 Fujitsu Media Device Kk 分波器及びこれを用いた電子装置
JP2004282707A (ja) * 2003-02-24 2004-10-07 Murata Mfg Co Ltd 弾性表面波フィルタ、通信機
WO2006043445A1 (ja) * 2004-10-22 2006-04-27 Murata Manufacturing Co., Ltd. バランス型弾性表面波フィルタ

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GB2306821B (en) * 1995-11-03 2000-05-31 Advanced Saw Prod Sa Electro-acoustic device
JPH11239035A (ja) * 1998-02-20 1999-08-31 Toyo Commun Equip Co Ltd Ｓａｗフィルタ
DE19938748B4 (de) * 1999-08-16 2007-02-01 Epcos Ag Dualmode-Oberflächenwellen-Filter mit verbesserter Symmetrie und erhöhter Sperrdämpfung
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JP3435640B2 (ja) 2000-05-22 2003-08-11 株式会社村田製作所 縦結合共振子型弾性表面波フィルタ
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JP3735550B2 (ja) * 2001-09-21 2006-01-18 Ｔｄｋ株式会社 弾性表面波装置およびその製造方法
JP3952907B2 (ja) * 2002-08-28 2007-08-01 株式会社村田製作所 弾性表面波装置、通信装置
JP2006086994A (ja) * 2004-09-17 2006-03-30 Hitachi Media Electoronics Co Ltd 弾性表面波フィルタ装置及びそれを備えた通信装置
JP5010256B2 (ja) * 2005-11-30 2012-08-29 京セラ株式会社 弾性表面波装置及びこれを備えた通信装置
CN1976222B (zh) * 2005-11-30 2011-09-21 京瓷株式会社 声表面波元件、声表面波装置以及具有它的通信装置
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Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06268476A (ja) * 1993-03-11 1994-09-22 Murata Mfg Co Ltd ２段接続型多電極弾性表面波装置
JPH0879000A (ja) * 1994-09-07 1996-03-22 Toshiba Corp 弾性表面波フィルタ
JP2003249842A (ja) * 2001-12-21 2003-09-05 Fujitsu Media Device Kk 分波器及びこれを用いた電子装置
JP2004282707A (ja) * 2003-02-24 2004-10-07 Murata Mfg Co Ltd 弾性表面波フィルタ、通信機
WO2006043445A1 (ja) * 2004-10-22 2006-04-27 Murata Manufacturing Co., Ltd. バランス型弾性表面波フィルタ

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120098618A1 (en) * 2009-06-26 2012-04-26 Kyocera Corporation Surface Acoustic Wave Filter and Duplexer Using Same
US9041487B2 (en) * 2009-06-26 2015-05-26 Kyocera Corporation Surface acoustic wave filter and duplexer using same
JP5497795B2 (ja) * 2010-01-12 2014-05-21 京セラ株式会社 弾性波装置
US9397633B2 (en) 2010-01-12 2016-07-19 Kyocera Corporation Acoustic wave device
US10050600B2 (en) 2010-01-12 2018-08-14 Kyocera Corporation Acoustic wave device

Also Published As

Publication number Publication date
US8427258B2 (en) 2013-04-23
JP5110611B2 (ja) 2012-12-26
JPWO2009013974A1 (ja) 2010-09-30
US20100219912A1 (en) 2010-09-02

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