DE69734753D1 - Akustische Oberflächenwellenvorrichtung - Google Patents

Akustische Oberflächenwellenvorrichtung

Info

Publication number
DE69734753D1
DE69734753D1 DE69734753T DE69734753T DE69734753D1 DE 69734753 D1 DE69734753 D1 DE 69734753D1 DE 69734753 T DE69734753 T DE 69734753T DE 69734753 T DE69734753 T DE 69734753T DE 69734753 D1 DE69734753 D1 DE 69734753D1
Authority
DE
Germany
Prior art keywords
wave device
surface wave
acoustic surface
acoustic
wave
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
DE69734753T
Other languages
English (en)
Other versions
DE69734753T2 (de
Inventor
Katsuhiro Ikada
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
Application granted granted Critical
Publication of DE69734753D1 publication Critical patent/DE69734753D1/de
Publication of DE69734753T2 publication Critical patent/DE69734753T2/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
    • H03H9/74—Multiple-port networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source
    • H03H9/76—Networks 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
    • H03H9/1071—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the SAW device
    • 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
    • H03H9/644—Coupled resonator filters having two acoustic tracks
    • H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6459—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode
    • H03H9/6463—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode the tracks being electrically cascaded
    • H03H9/6466—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode the tracks being electrically cascaded each track containing more than two 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
    • H03H9/02—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
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger transducers
DE69734753T 1996-09-17 1997-09-17 Akustische Oberflächenwellenvorrichtung Expired - Lifetime DE69734753T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP24518896 1996-09-17
JP24518896A JP3227645B2 (ja) 1996-09-17 1996-09-17 弾性表面波装置

Publications (2)

Publication Number Publication Date
DE69734753D1 true DE69734753D1 (de) 2006-01-05
DE69734753T2 DE69734753T2 (de) 2006-06-08

Family

ID=17129933

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69734753T Expired - Lifetime DE69734753T2 (de) 1996-09-17 1997-09-17 Akustische Oberflächenwellenvorrichtung

Country Status (5)

Country Link
US (1) US5966060A (de)
EP (1) EP0829958B1 (de)
JP (1) JP3227645B2 (de)
KR (1) KR100278748B1 (de)
DE (1) DE69734753T2 (de)

Families Citing this family (19)

* 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
EP0961404B1 (de) * 1998-05-29 2008-07-02 Fujitsu Limited Akustisches Oberflächenwellenfilter mit verbesserter Unterdrückung ausserhalb eines Durchlassbereichs
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
JP2000059176A (ja) * 1998-08-06 2000-02-25 Toshiba Corp 弾性表面波素子
JP3498204B2 (ja) * 1999-03-10 2004-02-16 株式会社村田製作所 弾性表面波フィルタ、それを用いた通信機装置
JP3860364B2 (ja) * 1999-08-11 2006-12-20 富士通メディアデバイス株式会社 弾性表面波装置
DE10012129A1 (de) * 2000-03-13 2001-10-11 Epcos Ag Duplexer mit verbesserter Unterdrückung von Harmonischen
JP3382920B2 (ja) 2000-06-30 2003-03-04 沖電気工業株式会社 共振器型弾性表面波フィルタ
JP3454239B2 (ja) * 2000-08-31 2003-10-06 株式会社村田製作所 弾性表面波フィルタ
JP3780415B2 (ja) * 2001-06-12 2006-05-31 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、およびそれを用いた通信機装置
JP4726358B2 (ja) * 2001-08-31 2011-07-20 京セラ株式会社 弾性表面波装置
EP1315297A3 (de) * 2001-10-29 2010-02-17 Panasonic Corporation Akustisches Oberflächenwellenfilterelement, akustisches Oberflächenwellenfilter und eines dieses verwendendes Kommunikationsgerät
JP3818896B2 (ja) * 2001-11-26 2006-09-06 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
US6765456B2 (en) * 2001-12-17 2004-07-20 Oki Electric Industry Co., Ltd. Surface acoustic wave duplexer and portable communication device using the same
JP3993579B2 (ja) 2004-04-28 2007-10-17 富士通メディアデバイス株式会社 バランス出力型フィルタ
JP4816710B2 (ja) 2008-10-30 2011-11-16 株式会社村田製作所 分波器
DE102010005306B4 (de) * 2010-01-21 2015-06-18 Epcos Ag DMS Filter mit verbesserter Signalunterdrückung
JP5890670B2 (ja) 2011-12-05 2016-03-22 太陽誘電株式会社 フィルタ及び分波器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4365219A (en) * 1981-02-27 1982-12-21 General Electric Company In-line surface acoustic wave filter assembly module and method of making same
JPH03284006A (ja) * 1990-03-30 1991-12-13 Fujitsu Ltd 弾性表面波デバイス
JPH0555872A (ja) * 1991-08-21 1993-03-05 Toyo Commun Equip Co Ltd 二段縦続接続二重モードｓａｗフイルタ
JPH06152313A (ja) * 1992-10-30 1994-05-31 Japan Energy Corp 弾性表面波フィルタ
JP3379775B2 (ja) * 1992-11-17 2003-02-24 富士通株式会社 弾性表面波フィルタ
EP0637872B1 (de) * 1993-08-06 2000-02-23 Kinseki Limited Akustische Oberflächenwellenanordnung
JP2905094B2 (ja) * 1994-07-01 1999-06-14 富士通株式会社 分波器パッケージ
EP0740411A4 (de) * 1994-11-10 1997-11-12 Fujitsu Ltd Akustisches wellenfilter
JP3350609B2 (ja) * 1995-03-24 2002-11-25 ティーディーケイ株式会社 弾性表面波装置

Also Published As

Publication number Publication date
JP3227645B2 (ja) 2001-11-12
US5966060A (en) 1999-10-12
KR19980024722A (ko) 1998-07-06
EP0829958B1 (de) 2005-11-30
JPH1093381A (ja) 1998-04-10
KR100278748B1 (ko) 2001-01-15
EP0829958A3 (de) 2000-04-26
DE69734753T2 (de) 2006-06-08
EP0829958A2 (de) 1998-03-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition