DE69514275D1 - Oberflächenwellen-Resonatorfilter - Google Patents

Oberflächenwellen-Resonatorfilter

Info

Publication number
DE69514275D1
DE69514275D1 DE69514275T DE69514275T DE69514275D1 DE 69514275 D1 DE69514275 D1 DE 69514275D1 DE 69514275 T DE69514275 T DE 69514275T DE 69514275 T DE69514275 T DE 69514275T DE 69514275 D1 DE69514275 D1 DE 69514275D1
Authority
DE
Germany
Prior art keywords
surface wave
wave resonator
resonator filter
filter
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
DE69514275T
Other languages
English (en)
Other versions
DE69514275T2 (de
Inventor
Akira Hiraishi
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 DE69514275D1 publication Critical patent/DE69514275D1/de
Publication of DE69514275T2 publication Critical patent/DE69514275T2/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
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
DE69514275T 1994-05-11 1995-05-11 Oberflächenwellen-Resonatorfilter Expired - Lifetime DE69514275T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09752794A JP3214226B2 (ja) 1994-05-11 1994-05-11 弾性表面波共振子フィルタ

Publications (2)

Publication Number Publication Date
DE69514275D1 true DE69514275D1 (de) 2000-02-10
DE69514275T2 DE69514275T2 (de) 2000-10-05

Family

ID=14194730

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69514275T Expired - Lifetime DE69514275T2 (de) 1994-05-11 1995-05-11 Oberflächenwellen-Resonatorfilter

Country Status (6)

Country Link
US (1) US5699028A (de)
EP (1) EP0682409B1 (de)
JP (1) JP3214226B2 (de)
KR (1) KR100194292B1 (de)
CN (1) CN1068472C (de)
DE (1) DE69514275T2 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69632710T2 (de) * 1995-04-11 2004-10-14 Kinseki, Ltd., Komae Akustische oberflächenwellenanordnung
KR100402067B1 (ko) * 2001-04-06 2003-10-17 엘지이노텍 주식회사 이중모드 공진기 결합형 표면탄성파 필터
JP4216717B2 (ja) * 2001-08-14 2009-01-28 エヌエックスピー ビー ヴィ バルク音響波共振器を用いるフィルタ装置
US8138858B1 (en) * 2007-10-29 2012-03-20 Rf Micro Devices, Inc. Architectures using multiple dual-mode surface acoustic wave devices

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63155810A (ja) * 1986-12-19 1988-06-29 Hitachi Ltd 弾性表面波共振子フイルタ
JPS6454805A (en) * 1987-08-25 1989-03-02 Oki Electric Ind Co Ltd Surface acoustic wave resonator
JPH071859B2 (ja) * 1988-03-11 1995-01-11 国際電気株式会社 弾性表面波フィルタ
JPH03162116A (ja) * 1989-11-21 1991-07-12 Toshiba Corp 弾性表面波装置
JPH0481012A (ja) * 1990-07-20 1992-03-13 Seiko Epson Corp Ｓａｗフィルタ
US5223762A (en) * 1990-12-27 1993-06-29 Murata Manufacturing Co., Ltd. Surface acoustic wave filter
JP3024714B2 (ja) * 1991-11-06 2000-03-21 日本電信電話株式会社 リミッタ増幅器
JPH06244676A (ja) * 1993-02-19 1994-09-02 Daishinku Co 多段接続型弾性表面波フィルタ
JP3089611B2 (ja) * 1993-03-18 2000-09-18 松下電器産業株式会社 弾性表面波多重モードフィルタ
JPH113712A (ja) * 1997-06-11 1999-01-06 Sony Corp 非水電解液二次電池

Also Published As

Publication number Publication date
KR950035060A (ko) 1995-12-30
CN1068472C (zh) 2001-07-11
DE69514275T2 (de) 2000-10-05
JP3214226B2 (ja) 2001-10-02
US5699028A (en) 1997-12-16
CN1112750A (zh) 1995-11-29
EP0682409A1 (de) 1995-11-15
KR100194292B1 (ko) 1999-06-15
JPH07307642A (ja) 1995-11-21
EP0682409B1 (de) 2000-01-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition