CN1080952C - 表面声波滤波器元件和通过对其封装而制成的表面声波滤波器 - Google Patents

表面声波滤波器元件和通过对其封装而制成的表面声波滤波器 Download PDF

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Publication number
CN1080952C
CN1080952C CN95102877A CN95102877A CN1080952C CN 1080952 C CN1080952 C CN 1080952C CN 95102877 A CN95102877 A CN 95102877A CN 95102877 A CN95102877 A CN 95102877A CN 1080952 C CN1080952 C CN 1080952C
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CN
China
Prior art keywords
surface acoustic
acoustic wave
resonators
wave filter
parallel
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 - Fee Related
Application number
CN95102877A
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English (en)
Chinese (zh)
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CN1119372A (zh
Inventor
桥本一司
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.)
Taiyo Yuden Co Ltd
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Fujitsu Ltd
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Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of CN1119372A publication Critical patent/CN1119372A/zh
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Publication of CN1080952C publication Critical patent/CN1080952C/zh
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders or supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1064—Mounting in enclosures for surface acoustic wave [SAW] devices
    • H03H9/1071—Mounting in enclosures for surface acoustic wave [SAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the SAW device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
CN95102877A 1994-03-16 1995-03-16 表面声波滤波器元件和通过对其封装而制成的表面声波滤波器 Expired - Fee Related CN1080952C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP046121/94 1994-03-16
JP6046121A JPH07264000A (ja) 1994-03-16 1994-03-16 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

Publications (2)

Publication Number Publication Date
CN1119372A CN1119372A (zh) 1996-03-27
CN1080952C true CN1080952C (zh) 2002-03-13

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ID=12738166

Family Applications (1)

Application Number Title Priority Date Filing Date
CN95102877A Expired - Fee Related CN1080952C (zh) 1994-03-16 1995-03-16 表面声波滤波器元件和通过对其封装而制成的表面声波滤波器

Country Status (4)

Country Link
US (1) US5914646A (enExample)
JP (1) JPH07264000A (enExample)
CN (1) CN1080952C (enExample)
TW (1) TW280054B (enExample)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3239064B2 (ja) * 1996-05-28 2001-12-17 富士通株式会社 弾性表面波装置
GB9622654D0 (en) * 1996-10-31 1997-01-08 Flowers James E Filters
JPH10200370A (ja) * 1997-01-10 1998-07-31 Murata Mfg Co Ltd 弾性表面波フィルタ
JP3554133B2 (ja) * 1997-04-10 2004-08-18 松下電器産業株式会社 弾性表面波フィルタ
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
JPH11251871A (ja) * 1998-03-06 1999-09-17 Oki Electric Ind Co Ltd 弾性表面波分波器の受信用フィルタ
WO1999046857A1 (en) * 1998-03-12 1999-09-16 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter
DE69938989D1 (de) * 1998-05-29 2008-08-14 Fujitsu Ltd Akustisches Oberflächenwellenfilter mit verbesserter Unterdrückung ausserhalb eines Durchlassbereichs
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
DE19932649A1 (de) * 1999-07-13 2001-02-08 Epcos Ag SAW-Filter des Reaktanzfiltertyps mit verbesserter Sperrbereichsunterdrückung und Verfahren zur Optimierung der Sperrbereichsunterdrückung
US6323744B1 (en) * 2000-02-04 2001-11-27 Agere Systems Guardian Corp. Grounding of TFR ladder filters
JP2002118486A (ja) * 2000-10-06 2002-04-19 Matsushita Electric Ind Co Ltd 高周波複合スイッチモジュール
JP2002314372A (ja) * 2001-02-07 2002-10-25 Murata Mfg Co Ltd 弾性表面波フィルタ装置
JP3747853B2 (ja) 2002-01-08 2006-02-22 株式会社村田製作所 弾性表面波装置を備えた分波器
JP4177233B2 (ja) * 2003-01-28 2008-11-05 富士通メディアデバイス株式会社 弾性表面波デバイス及びその製造方法
JP4222197B2 (ja) * 2003-02-24 2009-02-12 株式会社村田製作所 弾性表面波フィルタ、通信機
JP4177182B2 (ja) * 2003-06-13 2008-11-05 富士通メディアデバイス株式会社 弾性表面波デバイス、そのパッケージ及びその製造方法
WO2004112246A1 (ja) * 2003-06-16 2004-12-23 Murata Manufacturing Co., Ltd. 弾性表面波分波器
JP4389521B2 (ja) * 2003-08-25 2009-12-24 パナソニック株式会社 弾性波フィルタ
CN1947334B (zh) * 2004-04-28 2011-09-21 松下电器产业株式会社 弹性表面波谐振器及使用了该谐振器的弹性表面波滤波器
DE102005032058B4 (de) * 2005-07-08 2016-12-29 Epcos Ag HF-Filter mit verbesserter Gegenbandunterdrückung
JP5056952B2 (ja) 2008-11-04 2012-10-24 株式会社村田製作所 弾性波フィルタ装置および、それを備えるモジュール
US10218334B2 (en) * 2015-03-18 2019-02-26 Taiyo Yuden Co., Ltd. Acoustic wave device
US10911024B2 (en) 2016-10-28 2021-02-02 Kyocera Corporation Acoustic wave filter, acoustic wave device, multiplexer, and communication apparatus
WO2019117106A1 (ja) * 2017-12-13 2019-06-20 株式会社村田製作所 フィルタ装置およびマルチプレクサ
JP7395942B2 (ja) * 2019-10-16 2023-12-12 株式会社村田製作所 フィルタ装置
CN113315489A (zh) * 2021-05-21 2021-08-27 中国电子科技集团公司第二十六研究所 一种钽酸铌36°y-x切型阻抗元结构声表滤波器

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541284A1 (en) * 1991-10-28 1993-05-12 Fujitsu Limited Surface acoustic wave filter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5925525B2 (ja) * 1979-08-31 1984-06-19 株式会社東芝 弾性表面波共振子
JPS5662416A (en) * 1979-10-27 1981-05-28 Tohoku Metal Ind Ltd Constituting method of ladder type ceramic filter
JPS57119509A (en) * 1981-01-19 1982-07-26 Toshiba Corp Surface acoustic wave resonator
DE3407480A1 (de) * 1984-02-29 1985-09-05 Siemens AG, 1000 Berlin und 8000 München Elektrisches oberflaechenwellenfilter
JPH04263509A (ja) * 1991-02-19 1992-09-18 Murata Mfg Co Ltd 弾性表面波装置
JPH05275965A (ja) * 1992-03-25 1993-10-22 Fujitsu Ltd 表面弾性波デバイス
JP3194540B2 (ja) * 1992-07-13 2001-07-30 富士通株式会社 弾性表面波フィルタ
JP3123822B2 (ja) * 1992-08-18 2001-01-15 三洋電機株式会社 電流増幅率補償回路
JP3379775B2 (ja) * 1992-11-17 2003-02-24 富士通株式会社 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 (en) * 1993-11-05 1998-08-12 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter
US5471178A (en) * 1994-02-03 1995-11-28 Motorola, Inc. Ladder filter and method for producing conjugately matched impedance

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0541284A1 (en) * 1991-10-28 1993-05-12 Fujitsu Limited Surface acoustic wave filter

Also Published As

Publication number Publication date
CN1119372A (zh) 1996-03-27
US5914646A (en) 1999-06-22
JPH07264000A (ja) 1995-10-13
TW280054B (enExample) 1996-07-01

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Effective date: 20100805

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Address after: Tokyo, Japan, Japan

Patentee after: Taiyo Yuden Co., Ltd.

Address before: Kanagawa, Japan

Patentee before: Fujitsu Ltd.

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Granted publication date: 20020313

Termination date: 20110316