DE69319977D1 - Akustisches Oberflächenwellenresonatorfilter - Google Patents

Akustisches Oberflächenwellenresonatorfilter

Info

Publication number
DE69319977D1
DE69319977D1 DE69319977T DE69319977T DE69319977D1 DE 69319977 D1 DE69319977 D1 DE 69319977D1 DE 69319977 T DE69319977 T DE 69319977T DE 69319977 T DE69319977 T DE 69319977T DE 69319977 D1 DE69319977 D1 DE 69319977D1
Authority
DE
Germany
Prior art keywords
surface wave
wave resonator
resonator filter
acoustic surface
acoustic
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
DE69319977T
Other languages
English (en)
Other versions
DE69319977T2 (de
DE69319977T3 (de
Inventor
Yasushi Yamamoto
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.)
Nihon Dempa Kogyo Co Ltd
Original Assignee
NEC Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=16802257&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69319977(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of DE69319977D1 publication Critical patent/DE69319977D1/de
Publication of DE69319977T2 publication Critical patent/DE69319977T2/de
Publication of DE69319977T3 publication Critical patent/DE69319977T3/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
    • H03H9/644—Coupled resonator filters having two acoustic tracks
    • H03H9/6443—Coupled resonator filters having two acoustic tracks being acoustically coupled
    • 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
    • H03H9/6436—Coupled resonator filters having one acoustic track only

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE69319977T 1992-08-24 1993-08-23 Akustisches Oberflächenwellenresonatorfilter Expired - Lifetime DE69319977T3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22369892 1992-08-24

Publications (3)

Publication Number Publication Date
DE69319977D1 true DE69319977D1 (de) 1998-09-03
DE69319977T2 DE69319977T2 (de) 1998-12-10
DE69319977T3 DE69319977T3 (de) 2006-06-14

Family

ID=16802257

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69319977T Expired - Lifetime DE69319977T3 (de) 1992-08-24 1993-08-23 Akustisches Oberflächenwellenresonatorfilter

Country Status (3)

Country Link
US (3) US5592040A (de)
EP (1) EP0584761B2 (de)
DE (1) DE69319977T3 (de)

Families Citing this family (24)

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DE19516903C2 (de) * 1995-05-09 1997-03-06 Dresden Ev Inst Festkoerper Resonatorfilter
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
JP3204112B2 (ja) * 1996-08-28 2001-09-04 株式会社村田製作所 弾性表面波共振子フィルタ
JP3068035B2 (ja) * 1997-05-26 2000-07-24 日本電気株式会社 弾性表面波装置
DE19726594C2 (de) * 1997-06-23 2000-03-30 Siemens Matsushita Components Dualmode-Oberflächenwellenfilter
WO1999004489A1 (fr) * 1997-07-18 1999-01-28 Kabushiki Kaisha Toshiba Filtre d'ondes acoustiques de surface
JP3154402B2 (ja) * 1997-11-12 2001-04-09 日本電気株式会社 Ｓａｗフィルタ
DE19902162A1 (de) * 1999-01-20 2000-08-10 Siemens Ag Transversalmoden-gekoppelte Resonatorfilter mit verbessertem oberen Sperrbereich
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
JP3498215B2 (ja) * 2001-04-09 2004-02-16 株式会社村田製作所 弾性表面波フィルタ、弾性表面波装置および通信装置
EP1372263A3 (de) * 2002-04-15 2009-09-16 Panasonic Corporation Hochfrequenzbauelement und Kommunikationsvorrichtung
US7005946B2 (en) * 2002-08-06 2006-02-28 The Charles Stark Draper Laboratory, Inc. MEMS piezoelectric longitudinal mode resonator
US10914698B2 (en) 2006-11-16 2021-02-09 General Electric Company Sensing method and system
US9097639B2 (en) * 2012-12-28 2015-08-04 General Electric Company Systems for analysis of fluids
US9589686B2 (en) 2006-11-16 2017-03-07 General Electric Company Apparatus for detecting contaminants in a liquid and a system for use thereof
US9536122B2 (en) 2014-11-04 2017-01-03 General Electric Company Disposable multivariable sensing devices having radio frequency based sensors
US9538657B2 (en) 2012-06-29 2017-01-03 General Electric Company Resonant sensor and an associated sensing method
US9658178B2 (en) 2012-09-28 2017-05-23 General Electric Company Sensor systems for measuring an interface level in a multi-phase fluid composition
US8620250B2 (en) * 2010-10-27 2013-12-31 Hollinworth Fund, L.L.C. Resonator-based filtering
US8542023B2 (en) 2010-11-09 2013-09-24 General Electric Company Highly selective chemical and biological sensors
US10598650B2 (en) 2012-08-22 2020-03-24 General Electric Company System and method for measuring an operative condition of a machine
US9746452B2 (en) 2012-08-22 2017-08-29 General Electric Company Wireless system and method for measuring an operative condition of a machine
US10684268B2 (en) 2012-09-28 2020-06-16 Bl Technologies, Inc. Sensor systems for measuring an interface level in a multi-phase fluid composition
US9837983B2 (en) * 2015-03-13 2017-12-05 Avago Technologies General Ip (Singapore) Pte. Ltd. Acoustic filter device with combined passband

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Publication number Priority date Publication date Assignee Title
GB1512790A (en) * 1975-08-22 1978-06-01 Mullard Ltd Acoustic surface wave devices
US3988703A (en) * 1975-12-31 1976-10-26 Zenith Radio Corporation Acoustic surface wave device having split-isolated or split-connected multistrip coupler
US3987379A (en) * 1976-01-02 1976-10-19 Zenith Radio Corporation Acoustic surface wave filter having combined split-isolated and split-connected coupler
US4060777A (en) * 1976-05-19 1977-11-29 Piezo Technology Inc. Guided elastic surface wave filter
GB1554366A (en) * 1977-02-04 1979-10-17 Philips Electronic Associated Acoustic surface wave devices
JPS5693414A (en) * 1979-12-27 1981-07-29 Fujitsu Ltd Elastic surface wave element
US4590442A (en) * 1982-05-25 1986-05-20 Nippon Telegraph & Telephone Corporation Variable high frequency oscillator
JPS59213A (ja) * 1982-06-25 1984-01-05 Toshiba Corp 弾性表面波装置
JPS5937723A (ja) * 1982-08-26 1984-03-01 Nec Corp 弾性表面波共振器型フイルタ装置
FR2553610B1 (fr) * 1983-10-12 1986-02-07 Telediffusion Fse Circuit de reception d'onde modulee tantot en frequence par signal analogique et tantot en phase par signal numerique
JPS61142812A (ja) * 1984-12-17 1986-06-30 Toshiba Corp 弾性表面波フイルタ
US4661738A (en) * 1985-09-26 1987-04-28 Crystal Technology, Inc. Compensation techniques for temperature effects and non-uniform amplitude distributions in saw devices
JPH034715A (ja) * 1989-06-01 1991-01-10 Iseki & Co Ltd 草刈機
DE3942140A1 (de) * 1989-12-20 1991-06-27 Siemens Ag Oberflaechenwellen-reflektorfilter
FR2658013B1 (fr) * 1990-02-02 1992-04-17 Thomson Csf Filtre a ondes acoustiques de surface.
JPH03278608A (ja) 1990-03-28 1991-12-10 Hitachi Ltd 多段縦続接続型弾性表面波フィルタ及びそれを用いた通信装置
JPH03278606A (ja) 1990-03-28 1991-12-10 Hitachi Ltd 弾性表面波共振子およびそれを用いた通信装置
JP2817380B2 (ja) 1990-09-03 1998-10-30 株式会社村田製作所 縦型２重モード弾性表面波フィルタ
US5296824A (en) * 1991-12-02 1994-03-22 Motorola, Inc. Low loss wide bandwidth parallel channel acoustic filter
DE4214122C2 (de) 1992-04-29 2001-02-22 Siemens Ag Zweispur-Oberflächenwellenanordnung mit verbesserter Selektionseigenschaft
JP3254779B2 (ja) * 1993-01-05 2002-02-12 株式会社村田製作所 多電極形弾性表面波装置
JP2560991B2 (ja) * 1993-08-20 1996-12-04 日本電気株式会社 弾性表面波フィルタ
DE4447740B4 (de) * 1993-09-06 2008-10-09 Sanyo Electric Co., Ltd., Moriguchi Akustisches Oberflächenwellenfilter
EP0648015B1 (de) * 1993-10-08 2000-05-31 Matsushita Electric Industrial Co., Ltd. Akustisches Oberflächenwellenfilter
US5426339A (en) * 1994-04-01 1995-06-20 Rf Monolithics, Inc. Surface acoustic wave devices with mode changing characteristics

Also Published As

Publication number Publication date
EP0584761B2 (de) 2005-08-31
DE69319977T2 (de) 1998-12-10
DE69319977T3 (de) 2006-06-14
EP0584761B1 (de) 1998-07-29
EP0584761A1 (de) 1994-03-02
US6437478B1 (en) 2002-08-20
US5592040A (en) 1997-01-07
US20020096968A1 (en) 2002-07-25

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: NRS TECHNOLOGIES INC., HOKKAIDO, JP

8366 Restricted maintained after opposition proceedings
8327 Change in the person/name/address of the patent owner

Owner name: NIHON DEMPA KOGYO CO., LTD., TOKIO/TOKYO, JP