SG79252A1 - Surface acoustic wave filter, duplexer, and communications apparatus - Google Patents

Surface acoustic wave filter, duplexer, and communications apparatus

Info

Publication number
SG79252A1
SG79252A1 SG9901993A SG1999001993A SG79252A1 SG 79252 A1 SG79252 A1 SG 79252A1 SG 9901993 A SG9901993 A SG 9901993A SG 1999001993 A SG1999001993 A SG 1999001993A SG 79252 A1 SG79252 A1 SG 79252A1
Authority
SG
Singapore
Prior art keywords
duplexer
acoustic wave
surface acoustic
wave filter
communications apparatus
Prior art date
Application number
SG9901993A
Other languages
English (en)
Inventor
Michio Kadota
Hideya Horiuchi
Mamoru Ikeura
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
Publication of SG79252A1 publication Critical patent/SG79252A1/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
    • H03H9/46—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 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
    • H03H9/6483—Ladder SAW filters
    • 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
    • H03H9/02669—Edge reflection structures, i.e. resonating structures without metallic reflectors, e.g. Bleustein-Gulyaev-Shimizu [BGS], shear horizontal [SH], shear transverse [ST], Love waves devices
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Transceivers (AREA)
SG9901993A 1998-05-14 1999-04-30 Surface acoustic wave filter, duplexer, and communications apparatus SG79252A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13151498A JP3206548B2 (ja) 1998-05-14 1998-05-14 表面波フィルタ、共用器、通信機装置

Publications (1)

Publication Number Publication Date
SG79252A1 true SG79252A1 (en) 2001-03-20

Family

ID=15059831

Family Applications (1)

Application Number Title Priority Date Filing Date
SG9901993A SG79252A1 (en) 1998-05-14 1999-04-30 Surface acoustic wave filter, duplexer, and communications apparatus

Country Status (7)

Country Link
US (1) US6150900A (de)
JP (1) JP3206548B2 (de)
KR (1) KR100396824B1 (de)
DE (1) DE19922124B4 (de)
GB (1) GB2337383B (de)
SG (1) SG79252A1 (de)
TW (1) TW448616B (de)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6222426B1 (en) * 1998-06-09 2001-04-24 Oki Electric Industry, Co., Ltd. Branching filter with a composite circuit of an LC circuit and a serial arm saw resonator
US6937113B2 (en) * 1998-06-09 2005-08-30 Oki Electric Industry Co., Ltd. Branching filter package
JP3269466B2 (ja) * 1998-08-21 2002-03-25 株式会社村田製作所 表面波共振子、表面波フィルタ、共用器、通信機装置
JP3255128B2 (ja) * 1998-11-24 2002-02-12 株式会社村田製作所 弾性表面波フィルタ
JP3298538B2 (ja) * 1999-02-16 2002-07-02 株式会社村田製作所 端面反射縦結合型ｓａｗ共振子フィルタ
JP2000244275A (ja) * 1999-02-19 2000-09-08 Murata Mfg Co Ltd Ｓａｗ共振子フィルタ
JP2000278091A (ja) * 1999-03-19 2000-10-06 Murata Mfg Co Ltd 端面反射型表面波装置
JP3353742B2 (ja) * 1999-05-07 2002-12-03 株式会社村田製作所 表面波共振子、表面波装置、通信機装置
JP3397195B2 (ja) * 2000-02-28 2003-04-14 株式会社村田製作所 端面反射型表面波フィルタ
JP3402311B2 (ja) * 2000-05-19 2003-05-06 株式会社村田製作所 弾性表面波装置
JP2002141771A (ja) * 2000-08-21 2002-05-17 Murata Mfg Co Ltd 弾性表面波フィルタ装置
JP3432492B2 (ja) * 2000-09-28 2003-08-04 富士通株式会社 弾性表面波共振器及びこれを用いた弾性表面波フィルタ
JP3918497B2 (ja) * 2000-11-02 2007-05-23 株式会社村田製作所 端面反射型表面波装置
JP3614369B2 (ja) * 2001-01-11 2005-01-26 沖電気工業株式会社 有極型ｓａｗフィルタ
JP3414384B2 (ja) * 2001-01-12 2003-06-09 株式会社村田製作所 弾性表面波フィルタ、およびそれを用いた通信機装置
JP3412621B2 (ja) * 2001-03-02 2003-06-03 株式会社村田製作所 弾性表面波装置
US6873226B2 (en) * 2001-03-19 2005-03-29 Murata Manufacturing Co., Ltd. Edge-reflection surface acoustic wave filter
JP3833569B2 (ja) 2001-12-21 2006-10-11 富士通メディアデバイス株式会社 分波器及びこれを用いた電子装置
JP4230347B2 (ja) * 2003-12-19 2009-02-25 富士通メディアデバイス株式会社 弾性表面波フィルタ
FR2864618B1 (fr) * 2003-12-24 2006-03-03 Temex Sa Capteur de temperature ou de temperature et de pression interrogeable a distance
US8058768B2 (en) * 2005-05-27 2011-11-15 Triquint Semiconductor, Inc. Bulk acoustic wave resonator device
DE102007028291B4 (de) 2007-06-20 2013-04-25 Epcos Ag Mit akustischen Oberflächenwellen arbeitendes Transversalfilter
EP2345156A4 (de) * 2008-10-31 2012-10-31 Nortel Networks Ltd Selbstanpassender bandstoppfilter
WO2013030269A1 (de) * 2011-08-31 2013-03-07 Hirschmann Automation And Control Gmbh Lastmessung am lastaufnehmer von hebezeugen
WO2013046892A1 (ja) 2011-09-30 2013-04-04 株式会社村田製作所 分波装置
JP6411295B2 (ja) * 2014-10-16 2018-10-24 太陽誘電株式会社 弾性波デバイス、フィルタ、及び分波器
US10097158B2 (en) 2014-10-16 2018-10-09 Taiyo Yuden Co., Ltd. Acoustic wave device, filter, and duplexer
CN106797206B (zh) * 2014-10-21 2020-11-03 株式会社村田制作所 弹性波谐振器以及梯型滤波器
DE102015116223B4 (de) * 2015-09-25 2019-05-09 Snaptrack, Inc. SAW-Filter mit unterdrückter Scher-Mode
JP6634973B2 (ja) * 2016-06-24 2020-01-22 株式会社村田製作所 弾性表面波フィルタ、デュプレクサおよびマルチプレクサ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541284A1 (de) * 1991-10-28 1993-05-12 Fujitsu Limited Akustisches Oberflächenwellenfilter
EP0758819A1 (de) * 1995-08-14 1997-02-19 Murata Manufacturing Co., Ltd. Akustisches Oberflächenwellenfilter

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
JPS53123051A (en) * 1977-04-04 1978-10-27 Hitachi Ltd Filter for surface slip wave
JP3250252B2 (ja) * 1992-04-09 2002-01-28 株式会社村田製作所 表面波装置
DE69412424T2 (de) * 1993-11-05 1998-12-24 Matsushita Electric Ind Co Ltd Akustisches Oberflächenwellenfilter
TW256966B (de) * 1994-03-04 1995-09-11 Murata Manufacturing Co
US5955933A (en) * 1994-11-10 1999-09-21 Fujitsu Limited Saw resonator with improved connections
JPH08204501A (ja) * 1994-11-22 1996-08-09 Tdk Corp 弾性表面波フィルタ
JPH08204498A (ja) * 1995-01-24 1996-08-09 Murata Mfg Co Ltd 端面反射型表面波装置
DE69636897T2 (de) * 1995-05-29 2007-10-25 Sanyo Electric Co., Ltd., Moriguchi Akustischer Oberflächenwellenfilter
JP3285469B2 (ja) * 1995-07-11 2002-05-27 株式会社日立製作所 弾性表面波装置
JPH0969751A (ja) * 1995-08-30 1997-03-11 Murata Mfg Co Ltd 弾性表面波フィルタ
US5654680A (en) * 1996-01-30 1997-08-05 Motorola, Inc. Saw-based ladder filter including multiple coUpling coefficients (K2), Method therefor and radio incorporating same
GB2312109B (en) * 1996-03-29 2000-08-02 Advanced Saw Prod Sa Acoustic wave filter
JPH10200370A (ja) * 1997-01-10 1998-07-31 Murata Mfg Co Ltd 弾性表面波フィルタ
TW404091B (en) * 1997-05-16 2000-09-01 Murata Manufacturing Co Ladder filter having edge-reflection type resonators
JP3227649B2 (ja) * 1997-08-07 2001-11-12 株式会社村田製作所 弾性表面波フィルタ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541284A1 (de) * 1991-10-28 1993-05-12 Fujitsu Limited Akustisches Oberflächenwellenfilter
EP0758819A1 (de) * 1995-08-14 1997-02-19 Murata Manufacturing Co., Ltd. Akustisches Oberflächenwellenfilter

Also Published As

Publication number Publication date
KR19990088150A (ko) 1999-12-27
JPH11330905A (ja) 1999-11-30
US6150900A (en) 2000-11-21
GB9910176D0 (en) 1999-06-30
GB2337383A (en) 1999-11-17
DE19922124B4 (de) 2005-03-24
TW448616B (en) 2001-08-01
JP3206548B2 (ja) 2001-09-10
DE19922124A1 (de) 1999-12-02
KR100396824B1 (ko) 2003-09-02
GB2337383B (en) 2000-03-29

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