DE69608997D1 - Resonateur-Kettenfilter mit akustischen Oberflächenwellen - Google Patents

Resonateur-Kettenfilter mit akustischen Oberflächenwellen

Info

Publication number
DE69608997D1
DE69608997D1 DE69608997T DE69608997T DE69608997D1 DE 69608997 D1 DE69608997 D1 DE 69608997D1 DE 69608997 T DE69608997 T DE 69608997T DE 69608997 T DE69608997 T DE 69608997T DE 69608997 D1 DE69608997 D1 DE 69608997D1
Authority
DE
Germany
Prior art keywords
surface acoustic
acoustic waves
chain filter
resonator
resonator chain
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
DE69608997T
Other languages
English (en)
Other versions
DE69608997T2 (de
Inventor
Shun-Ichi Seki
Kazuo Eda
Yutaka Taguchi
Keiji Onishi
Hiroki Sato
Osamu Kawasaki
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 DE69608997D1 publication Critical patent/DE69608997D1/de
Publication of DE69608997T2 publication Critical patent/DE69608997T2/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
    • H03H9/6483—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
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14517—Means for weighting
    • H03H9/1452—Means for weighting by finger overlap length, apodisation

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE69608997T 1995-04-12 1996-04-03 Resonateur-Kettenfilter mit akustischen Oberflächenwellen Expired - Lifetime DE69608997T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8684095 1995-04-12
JP21174495 1995-08-21

Publications (2)

Publication Number Publication Date
DE69608997D1 true DE69608997D1 (de) 2000-08-03
DE69608997T2 DE69608997T2 (de) 2000-11-16

Family

ID=26427920

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69608997T Expired - Lifetime DE69608997T2 (de) 1995-04-12 1996-04-03 Resonateur-Kettenfilter mit akustischen Oberflächenwellen

Country Status (3)

Country Link
US (1) US5729186A (de)
EP (1) EP0738039B1 (de)
DE (1) DE69608997T2 (de)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3358688B2 (ja) * 1995-04-10 2002-12-24 三洋電機株式会社 弾性表面波素子
JPH09167936A (ja) 1995-10-13 1997-06-24 Fujitsu Ltd 弾性表面波装置
JP3728912B2 (ja) * 1998-02-17 2005-12-21 株式会社村田製作所 弾性表面波フィルタ
US6137380A (en) * 1996-08-14 2000-10-24 Murata Manufacturing, Co., Ltd Surface acoustic wave filter utilizing a particularly placed spurious component of a parallel resonator
DE19638451A1 (de) * 1996-09-19 1998-04-02 Siemens Matsushita Components Reaktanzfilter mit OFW-Resonatoren
GB9622654D0 (en) * 1996-10-31 1997-01-08 Flowers James E Filters
WO1999004489A1 (fr) * 1997-07-18 1999-01-28 Kabushiki Kaisha Toshiba Filtre d'ondes acoustiques de surface
JP3301399B2 (ja) * 1998-02-16 2002-07-15 株式会社村田製作所 弾性表面波装置
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
JP3419339B2 (ja) * 1999-03-11 2003-06-23 株式会社村田製作所 弾性表面波フィルタ、デュプレクサ、通信機装置
JP3341704B2 (ja) 1999-03-18 2002-11-05 株式会社村田製作所 端面反射型表面波装置の製造方法
JP2001024475A (ja) * 1999-07-09 2001-01-26 Oki Electric Ind Co Ltd 弾性表面波フィルタ
JP3449352B2 (ja) * 2000-02-07 2003-09-22 株式会社村田製作所 弾性表面波フィルタ
JP3467472B2 (ja) 2000-11-15 2003-11-17 富士通株式会社 弾性表面波フィルタ
JP3414384B2 (ja) * 2001-01-12 2003-06-09 株式会社村田製作所 弾性表面波フィルタ、およびそれを用いた通信機装置
JP2003087080A (ja) * 2001-07-06 2003-03-20 Murata Mfg Co Ltd 弾性表面波素子及びその製造方法
JP3724575B2 (ja) 2001-08-09 2005-12-07 セイコーエプソン株式会社 弾性表面波装置
JP3622202B2 (ja) * 2001-08-29 2005-02-23 セイコーエプソン株式会社 弾性表面波装置の温度特性調整方法
JP2003198317A (ja) * 2001-12-21 2003-07-11 Fujitsu Media Device Kk 弾性表面波共振子及び弾性表面波フィルタ
JP3979279B2 (ja) * 2001-12-28 2007-09-19 株式会社村田製作所 弾性表面波装置
JP3780947B2 (ja) * 2002-01-18 2006-05-31 株式会社村田製作所 弾性表面波装置
JP2005033246A (ja) * 2003-07-07 2005-02-03 Matsushita Electric Ind Co Ltd Ｓａｗフィルタとそれを用いた電子デバイス
DE102004037819B4 (de) * 2004-08-04 2021-12-16 Snaptrack, Inc. Elektroakustisches Bauelement mit geringen Verlusten
WO2007094139A1 (ja) * 2006-02-13 2007-08-23 Murata Manufacturing Co., Ltd. Ｓａｗフィルタ装置
US8035460B2 (en) * 2006-02-16 2011-10-11 Panasonic Corporation Surface acoustic wave device, surface acoustic wave filter and antenna duplexer using the same, and electronic equipment using the same
CN103314529A (zh) * 2011-01-24 2013-09-18 埃普科斯股份有限公司 表面声波滤波器
JP2014204181A (ja) * 2013-04-02 2014-10-27 株式会社村田製作所 弾性波共振装置及びラダー型フィルタ
US10367473B2 (en) * 2015-01-27 2019-07-30 Kyocera Corporation Filter, multiplexer, and communication apparatus
US20220116015A1 (en) 2018-06-15 2022-04-14 Resonant Inc. Transversely-excited film bulk acoustic resonator with optimized electrode thickness, mark, and pitch
US11323089B2 (en) 2018-06-15 2022-05-03 Resonant Inc. Filter using piezoelectric film bonded to high resistivity silicon substrate with trap-rich layer
US20210328574A1 (en) * 2020-04-20 2021-10-21 Resonant Inc. Small transversely-excited film bulk acoustic resonators with enhanced q-factor
US11323096B2 (en) 2018-06-15 2022-05-03 Resonant Inc. Transversely-excited film bulk acoustic resonator with periodic etched holes
US11323090B2 (en) 2018-06-15 2022-05-03 Resonant Inc. Transversely-excited film bulk acoustic resonator using Y-X-cut lithium niobate for high power applications
US11929731B2 (en) 2018-02-18 2024-03-12 Murata Manufacturing Co., Ltd. Transversely-excited film bulk acoustic resonator with optimized electrode mark, and pitch
US11264966B2 (en) 2018-06-15 2022-03-01 Resonant Inc. Solidly-mounted transversely-excited film bulk acoustic resonator with diamond layers in Bragg reflector stack
US11349452B2 (en) 2018-06-15 2022-05-31 Resonant Inc. Transversely-excited film bulk acoustic filters with symmetric layout
US11811391B2 (en) 2020-05-04 2023-11-07 Murata Manufacturing Co., Ltd. Transversely-excited film bulk acoustic resonator with etched conductor patterns
US11271539B1 (en) 2020-08-19 2022-03-08 Resonant Inc. Transversely-excited film bulk acoustic resonator with tether-supported diaphragm
US11728784B2 (en) 2020-10-05 2023-08-15 Murata Manufacturing Co., Ltd. Transversely-excited film bulk acoustic resonator matrix filters with split die sub-filters
US11405017B2 (en) 2020-10-05 2022-08-02 Resonant Inc. Acoustic matrix filters and radios using acoustic matrix filters
US11658639B2 (en) 2020-10-05 2023-05-23 Murata Manufacturing Co., Ltd. Transversely-excited film bulk acoustic resonator matrix filters with noncontiguous passband
US11476834B2 (en) 2020-10-05 2022-10-18 Resonant Inc. Transversely-excited film bulk acoustic resonator matrix filters with switches in parallel with sub-filter shunt capacitors
US11496113B2 (en) 2020-11-13 2022-11-08 Resonant Inc. XBAR devices with excess piezoelectric material removed

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773177B2 (ja) * 1984-12-17 1995-08-02 株式会社東芝 弾性表面波共振子
JPS61251223A (ja) * 1985-04-27 1986-11-08 Pioneer Electronic Corp 弾性表面波共振子
JP2745012B2 (ja) * 1987-07-15 1998-04-28 東洋通信機株式会社 リーキーｓａｗ共振子
US4978879A (en) * 1988-07-27 1990-12-18 Fujitsu Limited Acoustic surface wave element
JPH02250412A (ja) * 1989-03-23 1990-10-08 Murata Mfg Co Ltd 弾性表面波装置
JPH02250416A (ja) * 1989-03-23 1990-10-08 Murata Mfg Co Ltd 弾性表面波装置
JPH02250413A (ja) * 1989-03-23 1990-10-08 Murata Mfg Co Ltd 弾性表面波装置
JP2800905B2 (ja) * 1991-10-28 1998-09-21 富士通株式会社 弾性表面波フィルタ
JPH06188673A (ja) * 1992-12-18 1994-07-08 Fujitsu Ltd 弾性表面波フィルタ
JPH06291600A (ja) * 1993-04-07 1994-10-18 Matsushita Electric Ind Co Ltd 弾性表面波フィルタ
EP0652637B1 (de) * 1993-11-05 1998-08-12 Matsushita Electric Industrial Co., Ltd. Akustisches Oberflächenwellenfilter
US5471178A (en) * 1994-02-03 1995-11-28 Motorola, Inc. Ladder filter and method for producing conjugately matched impedance

Also Published As

Publication number Publication date
DE69608997T2 (de) 2000-11-16
EP0738039A1 (de) 1996-10-16
US5729186A (en) 1998-03-17
EP0738039B1 (de) 2000-06-28

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: STIPPL PATENTANWAELTE, 90482 NUERNBERG

8327 Change in the person/name/address of the patent owner

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