DE69424737D1 - Akustisches Oberflächenwellenfilter - Google Patents

Akustisches Oberflächenwellenfilter

Info

Publication number
DE69424737D1
DE69424737D1 DE69424737T DE69424737T DE69424737D1 DE 69424737 D1 DE69424737 D1 DE 69424737D1 DE 69424737 T DE69424737 T DE 69424737T DE 69424737 T DE69424737 T DE 69424737T DE 69424737 D1 DE69424737 D1 DE 69424737D1
Authority
DE
Germany
Prior art keywords
wave filter
surface wave
acoustic surface
acoustic
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
DE69424737T
Other languages
English (en)
Other versions
DE69424737T2 (de
Inventor
Toru Yamada
Toshio Ishizaki
Kazunori Nishimura
Kozo Murakami
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69424737D1 publication Critical patent/DE69424737D1/de
Publication of DE69424737T2 publication Critical patent/DE69424737T2/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
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H03H9/6479—Capacitively coupled SAW resonator 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
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave 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
    • H03H9/05—Holders; Supports
    • H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
    • H03H9/0542—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a lateral arrangement
    • 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
    • H03H9/14591—Vertically-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
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14597—Matching SAW transducers to external electrical circuits
    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
DE69424737T 1993-10-08 1994-10-06 Akustisches Oberflächenwellenfilter Expired - Lifetime DE69424737T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP25268293 1993-10-08
JP12107894 1994-06-02

Publications (2)

Publication Number Publication Date
DE69424737D1 true DE69424737D1 (de) 2000-07-06
DE69424737T2 DE69424737T2 (de) 2000-09-28

Family

ID=26458531

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69424737T Expired - Lifetime DE69424737T2 (de) 1993-10-08 1994-10-06 Akustisches Oberflächenwellenfilter

Country Status (3)

Country Link
US (2) US5581141A (de)
EP (1) EP0648015B1 (de)
DE (1) DE69424737T2 (de)

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EP0584761B2 (de) * 1992-08-24 2005-08-31 NRS Technologies Inc. Akustisches Oberflächenwellenresonatorfilter
DE69424737T2 (de) * 1993-10-08 2000-09-28 Matsushita Electric Ind Co Ltd Akustisches Oberflächenwellenfilter
DE19516903C2 (de) * 1995-05-09 1997-03-06 Dresden Ev Inst Festkoerper Resonatorfilter
GB2303265B (en) * 1995-07-10 1998-07-08 Matsushita Electric Ind Co Ltd Spread spectrum communication apparatus,and demodulator,surface acoustic wave element and surface acoustic wave parts for spread spectrum communication
FR2739232B1 (fr) * 1995-09-26 1997-10-24 Thomson Csf Filtre a ondes acoustiques de surface utilisant le couplage de trois voies acoustiques
JP3360541B2 (ja) * 1995-10-20 2002-12-24 セイコーエプソン株式会社 弾性表面波装置及びその設計方法
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JP3226472B2 (ja) * 1996-05-14 2001-11-05 富士通株式会社 弾性表面波多重モードフィルタ
US6348845B2 (en) 1996-05-23 2002-02-19 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter and multistage surface acoustic wave filter
US6801100B2 (en) 1996-05-23 2004-10-05 Matsushita Electric Industrial Co., Ltd. Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same
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US5793266A (en) * 1996-08-12 1998-08-11 Motorola Inc. Differential input and/or differential output, transversely-coupled surface acoustic wave filter
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
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FR2762458B1 (fr) * 1997-04-18 1999-07-09 Thomson Csf Dispositif a ondes acoustiques de surface a couplage par proximite a entrees/sorties differentielles
DE19724255C2 (de) * 1997-06-09 1999-10-21 Siemens Matsushita Components Transversalmodenresonatorfilter
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JP2000196411A (ja) * 1998-12-25 2000-07-14 Nec Corp 弾性表面波デバイスおよび弾性表面波フィルタ接続方法
JP3918433B2 (ja) * 1999-04-28 2007-05-23 セイコーエプソン株式会社 横２重モードｓａｗフィルタ
JP3712035B2 (ja) 1999-04-28 2005-11-02 株式会社村田製作所 表面波装置の製造方法
EP1225693B1 (de) * 1999-10-15 2008-05-21 Seiko Epson Corporation Akustische oberflächenwellenanordnung
US6426683B1 (en) * 1999-11-09 2002-07-30 Motorola, Inc. Integrated filter with improved I/O matching and method of fabrication
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JP2001267877A (ja) * 2000-03-21 2001-09-28 Sanyo Electric Co Ltd 弾性表面波デバイス
KR100518616B1 (ko) * 2001-01-18 2005-10-04 노키아 코포레이션 필터디바이스 및 필터디바이스를 제조하는 방법
US6798318B1 (en) 2001-04-27 2004-09-28 Sawtek, Inc. Hybrid leaky surface acoustic wave resonator filter
US6861927B1 (en) * 2001-04-27 2005-03-01 Sawtek, Inc. Longitudinally coupled leaky surface acoustic wave resonator filter
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
CN1287516C (zh) * 2001-06-21 2006-11-29 松下电器产业株式会社 弹性表面波装置及其制造方法和使用该装置的电子器件
JP2003060484A (ja) * 2001-08-14 2003-02-28 Murata Mfg Co Ltd 弾性表面波装置
US6624726B2 (en) * 2001-08-31 2003-09-23 Motorola, Inc. High Q factor MEMS resonators
EP1303041B1 (de) * 2001-10-16 2009-03-18 Panasonic Corporation Interdigitalwandler, akustisches Oberflächenwellenfilter und Funkkommunikationsvorrichtung
DE10163517B4 (de) * 2001-12-14 2009-12-17 Leibniz-Institut für Festkörper- und Werkstoffforschung e.V. Resonatorfilterkaskade
US8896397B2 (en) 2003-04-16 2014-11-25 Intellectual Ventures Fund 77 Llc Surface acoustic wave device and method of adjusting LC component of surface acoustic wave device
JP4381714B2 (ja) * 2003-04-16 2009-12-09 Ｏｋｉセミコンダクタ株式会社 表面弾性波デバイス、表面弾性波装置、及び表面弾性波デバイスの製造方法
JP2004336503A (ja) * 2003-05-09 2004-11-25 Fujitsu Media Device Kk 弾性表面波素子及びその製造方法
JP4291164B2 (ja) * 2004-01-08 2009-07-08 富士通メディアデバイス株式会社 弾性表面波装置
JP2006135447A (ja) * 2004-11-02 2006-05-25 Fujitsu Media Device Kk 分波器
JP4158818B2 (ja) * 2006-06-21 2008-10-01 株式会社村田製作所 弾性波フィルタ装置及びデュプレクサ
SE534510C2 (sv) * 2008-11-19 2011-09-13 Silex Microsystems Ab Funktionell inkapsling
DE102008063740B4 (de) * 2008-12-18 2014-04-03 Epcos Ag Trimmbares Oberflächenwellenbauelement
DE102009025716A1 (de) * 2009-06-20 2010-12-30 Forschungszentrum Jülich GmbH Messinstrument, elektrische Widerstandselemente und Messsystem zur Messung zeitveränderlicher magnetischer Felder oder Feldgradienten
CN102823130B (zh) * 2010-05-13 2014-12-10 株式会社村田制作所 弹性波装置
DE102010054900A1 (de) * 2010-12-17 2012-06-21 Epcos Ag Mit akustischen Oberflächenwellen arbeitendes Filter
DE112012002389B4 (de) 2011-06-09 2018-12-20 Murata Manufacturing Co., Ltd. Filterbauelement für elastische Wellen
US8816567B2 (en) 2011-07-19 2014-08-26 Qualcomm Mems Technologies, Inc. Piezoelectric laterally vibrating resonator structure geometries for spurious frequency suppression
US20130120081A1 (en) * 2011-11-14 2013-05-16 Qualcomm Mems Technologies, Inc. Combined resonators and passive circuit components for filter passband flattening
US9647637B2 (en) * 2012-06-05 2017-05-09 Snaptrack, Inc. Saw filter with improved stop band suppression
CN105493402B (zh) * 2013-09-06 2018-01-26 株式会社村田制作所 弹性波谐振器、弹性波滤波器装置以及双工器
CN106415744B (zh) * 2014-06-25 2018-12-11 英特尔公司 用于形成集成无源器件的技术
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
DE102016106185A1 (de) * 2016-04-05 2017-10-05 Snaptrack, Inc. Breitbandiges SAW-Filter
JP6649916B2 (ja) * 2017-05-22 2020-02-19 双信電機株式会社 共振器
DE102017120304A1 (de) * 2017-09-04 2019-03-07 RF360 Europe GmbH Elektroakustischer Resonator mit erhöhter Leistungsbeständigkeit und verbesserter Linearität, HF-Filter und Multiplexer

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Also Published As

Publication number Publication date
DE69424737T2 (de) 2000-09-28
US5581141A (en) 1996-12-03
US5932950A (en) 1999-08-03
EP0648015A2 (de) 1995-04-12
EP0648015A3 (de) 1996-01-31
EP0648015B1 (de) 2000-05-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP