DE60036041D1 - Kantenreflexions-Oberflächenwellenfilter - Google Patents

Kantenreflexions-Oberflächenwellenfilter

Info

Publication number
DE60036041D1
DE60036041D1 DE60036041T DE60036041T DE60036041D1 DE 60036041 D1 DE60036041 D1 DE 60036041D1 DE 60036041 T DE60036041 T DE 60036041T DE 60036041 T DE60036041 T DE 60036041T DE 60036041 D1 DE60036041 D1 DE 60036041D1
Authority
DE
Germany
Prior art keywords
edge
acoustic wave
surface acoustic
reflection surface
wave filter
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE60036041T
Other languages
English (en)
Other versions
DE60036041T2 (de
Inventor
Michio Kadota
Junya Ago
Hideya Horiuchi
Mamoru Ikeura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 Ltd filed Critical Murata Manufacturing Co Ltd
Publication of DE60036041D1 publication Critical patent/DE60036041D1/de
Application granted granted Critical
Publication of DE60036041T2 publication Critical patent/DE60036041T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03H9/02—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
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0047—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks
    • H03H9/0052—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically cascaded
    • H03H9/0057—Balance-unbalance or balance-balance networks 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 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
    • H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
    • H03H9/14514—Broad band 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
    • H03H9/25—Constructional features of resonators 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
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
    • H03H9/1092—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a cover cap mounted on an element forming part of the surface acoustic wave [SAW] device on the side of the IDT's
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE60036041T 1999-02-18 2000-02-18 Kantenreflexions-Oberflächenwellenfilter Expired - Lifetime DE60036041T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3977699 1999-02-18
JP03977699A JP3341699B2 (ja) 1999-02-18 1999-02-18 端面反射型表面波装置

Publications (2)

Publication Number Publication Date
DE60036041D1 true DE60036041D1 (de) 2007-10-04
DE60036041T2 DE60036041T2 (de) 2008-05-21

Family

ID=12562346

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60036041T Expired - Lifetime DE60036041T2 (de) 1999-02-18 2000-02-18 Kantenreflexions-Oberflächenwellenfilter

Country Status (8)

Country Link
US (1) US6335584B1 (de)
EP (1) EP1030445B8 (de)
JP (1) JP3341699B2 (de)
KR (1) KR100314602B1 (de)
CN (1) CN1180532C (de)
DE (1) DE60036041T2 (de)
SG (1) SG75198A1 (de)
TW (1) TW453028B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3797155B2 (ja) * 2000-09-06 2006-07-12 株式会社村田製作所 端面反射型表面波装置の周波数調整方法
JP3412621B2 (ja) * 2001-03-02 2003-06-03 株式会社村田製作所 弾性表面波装置
JP3744479B2 (ja) * 2001-09-28 2006-02-08 株式会社村田製作所 表面波装置及び通信機
US8358177B2 (en) * 2008-10-24 2013-01-22 Seiko Epson Corporation Surface acoustic wave resonator, surface acoustic wave oscillator, and surface acoustic wave module unit
WO2010098065A1 (ja) * 2009-02-25 2010-09-02 パナソニック株式会社 弾性波素子および弾性波フィルタ
JP6335492B2 (ja) * 2013-11-29 2018-05-30 太陽誘電株式会社 弾性波素子

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1583295A (en) 1977-04-07 1981-01-21 Woodhead R W Cases for throwing darts
US4814658A (en) 1986-11-10 1989-03-21 Northern Telecom Limited SAW device with continuous finger pattern
US5212420A (en) * 1991-09-03 1993-05-18 Motorola, Inc. Method and apparatus for surface acoustic wave reflector grating
JP3250252B2 (ja) 1992-04-09 2002-01-28 株式会社村田製作所 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
DE19630890A1 (de) * 1996-07-31 1998-02-05 Fraunhofer Ges Forschung Oberflächenwellen-Flüssigkeitssensor
JP3233087B2 (ja) * 1997-01-20 2001-11-26 株式会社村田製作所 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
US5986523A (en) * 1997-08-29 1999-11-16 Murata Manufacturing Co., Ltd. Edge reflection type longitudinally coupled surface acoustic wave filter

Also Published As

Publication number Publication date
CN1264220A (zh) 2000-08-23
EP1030445B1 (de) 2007-08-22
JP2000244279A (ja) 2000-09-08
EP1030445A2 (de) 2000-08-23
JP3341699B2 (ja) 2002-11-05
KR100314602B1 (ko) 2001-11-17
DE60036041T2 (de) 2008-05-21
EP1030445A3 (de) 2002-05-08
SG75198A1 (en) 2000-09-19
EP1030445B8 (de) 2007-10-10
US6335584B1 (en) 2002-01-01
TW453028B (en) 2001-09-01
KR20000076680A (ko) 2000-12-26
CN1180532C (zh) 2004-12-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition