ES2174231T3 - Filtros de onda acustica de superficie. - Google Patents

Filtros de onda acustica de superficie.

Info

Publication number
ES2174231T3
ES2174231T3 ES97910548T ES97910548T ES2174231T3 ES 2174231 T3 ES2174231 T3 ES 2174231T3 ES 97910548 T ES97910548 T ES 97910548T ES 97910548 T ES97910548 T ES 97910548T ES 2174231 T3 ES2174231 T3 ES 2174231T3
Authority
ES
Spain
Prior art keywords
filter
acoustic wave
surface acoustic
wave filters
combines
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
ES97910548T
Other languages
English (en)
Inventor
James Edward Flowers
James Heighway
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.)
Sawcom Ltd
Clarisay Inc
Original Assignee
Sawcom Ltd
Clarisay Inc
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 Sawcom Ltd, Clarisay Inc filed Critical Sawcom Ltd
Application granted granted Critical
Publication of ES2174231T3 publication Critical patent/ES2174231T3/es
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
    • H03H9/6483—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
    • H03H9/0023—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
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0085—Balance-unbalance or balance-balance networks using surface acoustic wave devices having four acoustic tracks
    • H03H9/009—Lattice filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2250/00—Indexing scheme relating to dual- or multi-band filters

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

SE DESCRIBEN ESTRUCTURAS DE FILTRO QUE CONSTAN DE UNA SERIE DE RESONADORES DE ONDAS ACUSTICAS DE SUPERFICIE (OAS) INDIVIDUALES, FORMADOS POR PEINES METALICOS INTER - DIGITADOS SOBRE UN SUBSTRATO PIEZOELECTRICO COMUN. UNAS AREAS DE METALIZACION (1, 2, 3, 4) ENTRE LOS PEINES PROPORCIONAN MEDIOS PARA CONECTAR EL FILTRO EN UN CIRCUITO, POR EJEMPLO, UN TELEFONO MOVIL, A FIN DE QUE ACTUE COMO FILTRO CON UNA BANDA DE PASO EN EL INTERVALO DE 800 A 2.200 MHZ. CADA RESONADOR OAS INDIVIDUAL DIFIERE DE LOS DEMAS, ESTANDO TODOS ELLOS INTERCONECTADOS EN UNA DISPOSICION EN ESCALERA Y/O EN PUENTE EQUILIBRADO.
ES97910548T 1996-10-31 1997-10-31 Filtros de onda acustica de superficie. Expired - Lifetime ES2174231T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9622654.3A GB9622654D0 (en) 1996-10-31 1996-10-31 Filters

Publications (1)

Publication Number Publication Date
ES2174231T3 true ES2174231T3 (es) 2002-11-01

Family

ID=10802205

Family Applications (1)

Application Number Title Priority Date Filing Date
ES97910548T Expired - Lifetime ES2174231T3 (es) 1996-10-31 1997-10-31 Filtros de onda acustica de superficie.

Country Status (6)

Country Link
US (1) US6246148B1 (es)
EP (1) EP0935848B1 (es)
DE (1) DE69713370T2 (es)
ES (1) ES2174231T3 (es)
GB (1) GB9622654D0 (es)
WO (1) WO1998019394A1 (es)

Families Citing this family (17)

* 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
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
JP3161439B2 (ja) 1998-11-25 2001-04-25 株式会社村田製作所 弾性表面波フィルタ
DE19932649A1 (de) * 1999-07-13 2001-02-08 Epcos Ag SAW-Filter des Reaktanzfiltertyps mit verbesserter Sperrbereichsunterdrückung und Verfahren zur Optimierung der Sperrbereichsunterdrückung
US6650205B2 (en) * 2001-03-29 2003-11-18 Clarisay, Inc. Wafer-scale package for surface acoustic wave circuit and method of manufacturing the same
JP3648462B2 (ja) * 2001-04-27 2005-05-18 沖電気工業株式会社 弾性表面波分波器
JP3859573B2 (ja) * 2002-10-21 2006-12-20 富士通メディアデバイス株式会社 弾性表面波フィルタ及びフィルタ装置
US7299528B2 (en) * 2002-11-05 2007-11-27 Lee David M Method for forming a multi-frequency surface acoustic wave device
TW200520201A (en) * 2003-10-08 2005-06-16 Kyocera Corp High-frequency module and communication apparatus
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
JP4943137B2 (ja) * 2006-12-25 2012-05-30 京セラ株式会社 分波器および通信装置
KR20110093878A (ko) 2008-11-10 2011-08-18 코넬 유니버시티 자가-발전형 압전-표면 탄성파 장치 및 방법
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
US9099981B2 (en) * 2010-01-20 2015-08-04 Skyworks Panasonic Filter Solutions Japan Co., Ltd. Acoustic wave device having an inorganic insulator and an organic insulator
KR101719325B1 (ko) * 2010-07-19 2017-03-23 삼성전자주식회사 Ｂａｗｒ을 이용한 밸런스 구조의 ｒｆ 듀플렉서 및 ｒｆ 필터
JP6513104B2 (ja) * 2014-04-08 2019-05-15 スカイワークスフィルターソリューションズジャパン株式会社 弾性波共振器、これを用いた弾性波フィルタ、アンテナ共用器、モジュール及び通信機器

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2132985C3 (de) * 1971-07-02 1981-06-04 Siemens AG, 1000 Berlin und 8000 München Piezoelektrisches Filter nach dem Oberflächenwellenprinzip
US4322651A (en) * 1977-05-09 1982-03-30 Murata Manufacturing Co., Ltd. Acoustic surface wave device
JPS53139450A (en) * 1977-05-12 1978-12-05 Victor Co Of Japan Ltd Elastic surface wave element
US4484098A (en) * 1983-12-19 1984-11-20 United Technologies Corporation Environmentally stable lithium niobate acoustic wave devices
JPH04288718A (ja) * 1991-02-22 1992-10-13 Seiko Epson Corp 弾性表面波素子の電極構造
DE4431612C2 (de) * 1993-09-06 1998-07-16 Sanyo Electric Co Akustisches Oberflächenwellenfilter
JP3379049B2 (ja) * 1993-10-27 2003-02-17 富士通株式会社 表面弾性波素子とその製造方法
US5506552A (en) * 1993-11-05 1996-04-09 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter with multiple ground terminals
JPH07264000A (ja) * 1994-03-16 1995-10-13 Fujitsu Ltd 弾性表面波フィルタ素子及びそれをパッケージングして成る弾性表面波フィルタ
EP0740411A4 (en) * 1994-11-10 1997-11-12 Fujitsu Ltd ACOUSTIC WAVE FILTER
DE69608997T2 (de) * 1995-04-12 2000-11-16 Matsushita Electric Ind Co Ltd Resonateur-Kettenfilter mit akustischen Oberflächenwellen
DE69636897T2 (de) * 1995-05-29 2007-10-25 Sanyo Electric Co., Ltd., Moriguchi Akustischer Oberflächenwellenfilter
JPH0969748A (ja) * 1995-09-01 1997-03-11 Matsushita Electric Ind Co Ltd Ｓａｗデバイスおよびその製造方法
JPH09223944A (ja) * 1995-12-13 1997-08-26 Fujitsu Ltd 弾性表面波素子及びその製造方法
JP3077052B2 (ja) * 1995-12-27 2000-08-14 株式会社村田製作所 弾性表面波共振子フィルタ装置
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

Also Published As

Publication number Publication date
DE69713370T2 (de) 2003-03-27
WO1998019394A1 (en) 1998-05-07
EP0935848A1 (en) 1999-08-18
EP0935848B1 (en) 2002-06-12
DE69713370D1 (de) 2002-07-18
GB9622654D0 (en) 1997-01-08
US6246148B1 (en) 2001-06-12

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