ATE406691T1 - Akustische oberflächenwellenvorrichtung und kommunikationsgerät mit derselben - Google Patents

Akustische oberflächenwellenvorrichtung und kommunikationsgerät mit derselben

Info

Publication number
ATE406691T1
ATE406691T1 AT04290950T AT04290950T ATE406691T1 AT E406691 T1 ATE406691 T1 AT E406691T1 AT 04290950 T AT04290950 T AT 04290950T AT 04290950 T AT04290950 T AT 04290950T AT E406691 T1 ATE406691 T1 AT E406691T1
Authority
AT
Austria
Prior art keywords
acoustic wave
surface acoustic
resonator type
coupled resonator
longitudinally coupled
Prior art date
Application number
AT04290950T
Other languages
English (en)
Inventor
Minefumi Ouchi
Norihiko Nakahashi
Original Assignee
Murata Manufacturing Co
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 Murata Manufacturing Co filed Critical Murata Manufacturing Co
Application granted granted Critical
Publication of ATE406691T1 publication Critical patent/ATE406691T1/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0047—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks
    • H03H9/0052—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded
    • H03H9/0061—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded the balanced terminals being on opposite sides of the tracks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0047—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks
    • H03H9/0052—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded
    • H03H9/0057—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded the balanced terminals being on the same side of the tracks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0085—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having four acoustic tracks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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 elements; 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
AT04290950T 2003-04-10 2004-04-09 Akustische oberflächenwellenvorrichtung und kommunikationsgerät mit derselben ATE406691T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003106002A JP3985717B2 (ja) 2003-04-10 2003-04-10 弾性表面波装置およびそれを用いた通信装置

Publications (1)

Publication Number Publication Date
ATE406691T1 true ATE406691T1 (de) 2008-09-15

Family

ID=32866758

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04290950T ATE406691T1 (de) 2003-04-10 2004-04-09 Akustische oberflächenwellenvorrichtung und kommunikationsgerät mit derselben

Country Status (7)

Country Link
US (1) US7005948B2 (de)
EP (1) EP1467485B1 (de)
JP (1) JP3985717B2 (de)
KR (1) KR100598434B1 (de)
CN (1) CN1536766B (de)
AT (1) ATE406691T1 (de)
DE (1) DE602004016071D1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100680512B1 (ko) * 2004-08-23 2007-02-08 가부시키가이샤 무라타 세이사쿠쇼 밸런스형 탄성 표면파 필터
JP4069917B2 (ja) 2004-09-15 2008-04-02 株式会社村田製作所 バランス型弾性表面波フィルタ
JPWO2006095570A1 (ja) * 2005-03-11 2008-08-14 株式会社村田製作所 弾性表面波フィルタ装置
ATE543254T1 (de) * 2006-04-06 2012-02-15 Murata Manufacturing Co Duplexer
JP4853520B2 (ja) * 2006-10-31 2012-01-11 株式会社村田製作所 弾性表面波フィルタ装置及びデュプレクサ
WO2010035372A1 (ja) * 2008-09-24 2010-04-01 株式会社村田製作所 弾性波フィルタ装置
JP5933355B2 (ja) * 2012-06-12 2016-06-08 太陽誘電株式会社 フィルタ及びデュプレクサ
JP5796604B2 (ja) 2013-06-13 2015-10-21 株式会社村田製作所 分波装置
CN104467734B (zh) * 2014-11-07 2017-10-20 深圳华远微电科技有限公司 Gps和bds用声表面波滤波器及其小型化封装工艺
DE102015116223B4 (de) * 2015-09-25 2019-05-09 Snaptrack, Inc. SAW-Filter mit unterdrückter Scher-Mode
CN105406834B (zh) * 2015-11-19 2017-12-01 北京中讯四方科技股份有限公司 一种基于电容加权的扇形单相单向换能器声表滤波器
JP6625579B2 (ja) * 2017-03-21 2019-12-25 太陽誘電株式会社 弾性波フィルタ

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3239064B2 (ja) 1996-05-28 2001-12-17 富士通株式会社 弾性表面波装置
JP3186604B2 (ja) 1996-10-09 2001-07-11 株式会社村田製作所 弾性表面波フィルタ装置
JP2001144574A (ja) 1999-11-11 2001-05-25 Toyo Commun Equip Co Ltd 入出力インピーダンスを異にした弾性表面波フィルタ
JP4415360B2 (ja) 2000-01-28 2010-02-17 エプソントヨコム株式会社 縦結合弾性表面波フィルタ
JP3419402B2 (ja) * 2001-04-16 2003-06-23 株式会社村田製作所 弾性表面波装置、通信装置
JP3391346B2 (ja) * 2000-04-18 2003-03-31 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
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
JP3358615B2 (ja) 2000-06-26 2002-12-24 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
JP3687566B2 (ja) * 2000-07-25 2005-08-24 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
KR100609219B1 (ko) 2001-04-09 2006-08-02 가부시키가이샤 무라타 세이사쿠쇼 탄성표면파 장치 및 통신 장치
JP2003087081A (ja) 2001-09-07 2003-03-20 Murata Mfg Co Ltd 弾性表面波装置
JP3509771B2 (ja) 2001-04-18 2004-03-22 株式会社村田製作所 弾性表面波フィルタ装置、通信装置
JP3873802B2 (ja) * 2001-06-12 2007-01-31 株式会社村田製作所 弾性表面波フィルタ
JP3826816B2 (ja) * 2001-08-29 2006-09-27 株式会社村田製作所 弾性表面波装置

Also Published As

Publication number Publication date
JP3985717B2 (ja) 2007-10-03
DE602004016071D1 (de) 2008-10-09
KR100598434B1 (ko) 2006-07-11
EP1467485A3 (de) 2005-09-07
EP1467485A2 (de) 2004-10-13
US7005948B2 (en) 2006-02-28
CN1536766B (zh) 2010-05-12
EP1467485B1 (de) 2008-08-27
KR20040089551A (ko) 2004-10-21
JP2004312576A (ja) 2004-11-04
US20040201435A1 (en) 2004-10-14
CN1536766A (zh) 2004-10-13

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