DE69633820D1 - Oberflächenwellenfilter mit verbesserten Bandpasseigenschaften und verbessertem Einstellbereich der Eingangs- und Ausgangsimpedanzen - Google Patents

Oberflächenwellenfilter mit verbesserten Bandpasseigenschaften und verbessertem Einstellbereich der Eingangs- und Ausgangsimpedanzen

Info

Publication number
DE69633820D1
DE69633820D1 DE69633820T DE69633820T DE69633820D1 DE 69633820 D1 DE69633820 D1 DE 69633820D1 DE 69633820 T DE69633820 T DE 69633820T DE 69633820 T DE69633820 T DE 69633820T DE 69633820 D1 DE69633820 D1 DE 69633820D1
Authority
DE
Germany
Prior art keywords
improved
input
surface wave
setting range
wave filters
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
DE69633820T
Other languages
English (en)
Other versions
DE69633820T2 (de
Inventor
Masanori Ueda
Gou Endoh
Osamu Kawachi
Yoshiro Fujiwara
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
Original Assignee
Fujitsu 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=15110271&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69633820(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE69633820D1 publication Critical patent/DE69633820D1/de
Application granted granted Critical
Publication of DE69633820T2 publication Critical patent/DE69633820T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • H03H9/6423Means for obtaining a particular transfer characteristic
    • H03H9/6433Coupled resonator filters
    • H03H9/644Coupled resonator filters having two acoustic tracks
    • H03H9/6456Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6469Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2/00Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023Balance-unbalance or balance-balance networks
    • H03H9/0028Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0033Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only
    • H03H9/0038Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only the balanced terminals being on the same side of the track
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023Balance-unbalance or balance-balance networks
    • H03H9/0028Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0033Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only
    • H03H9/0042Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only the balanced terminals being on opposite sides of the track
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/0023Balance-unbalance or balance-balance networks
    • H03H9/0028Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0047Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks
    • H03H9/0052Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically cascaded
    • H03H9/0061Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically cascaded the balanced terminals being on opposite sides of the tracks
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/05Holders; Supports
    • H03H9/10Mounting in enclosures
    • H03H9/1064Mounting in enclosures for surface acoustic wave [SAW] devices
    • H03H9/1071Mounting 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/25Constructional features of resonators using surface acoustic waves
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • H03H9/6423Means for obtaining a particular transfer characteristic
    • H03H9/6433Coupled resonator filters
    • H03H9/6436Coupled resonator filters having one acoustic track only
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • H03H9/6423Means for obtaining a particular transfer characteristic
    • H03H9/6433Coupled resonator filters
    • H03H9/644Coupled resonator filters having two acoustic tracks
    • H03H9/6456Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6459Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • H03H9/6423Means for obtaining a particular transfer characteristic
    • H03H9/6433Coupled resonator filters
    • H03H9/644Coupled resonator filters having two acoustic tracks
    • H03H9/6456Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6459Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode
    • H03H9/6463Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode the tracks being electrically cascaded
    • H03H9/6466Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode the tracks being electrically cascaded each track containing more than two transducers
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • H03H9/6489Compensation of undesirable effects

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE69633820T 1996-05-28 1996-12-06 Oberflächenwellenfilter mit verbesserten Bandpasseigenschaften und verbessertem Einstellbereich der Eingangs- und Ausgangsimpedanzen Expired - Lifetime DE69633820T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13367596A JP3239064B2 (ja) 1996-05-28 1996-05-28 弾性表面波装置
JP13367596 1996-05-28

Publications (2)

Publication Number Publication Date
DE69633820D1 true DE69633820D1 (de) 2004-12-16
DE69633820T2 DE69633820T2 (de) 2005-03-17

Family

ID=15110271

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69632929T Expired - Lifetime DE69632929T2 (de) 1996-05-28 1996-12-06 Akustische Oberflächenwellenvorrichtung mit zwei Moden
DE69633820T Expired - Lifetime DE69633820T2 (de) 1996-05-28 1996-12-06 Oberflächenwellenfilter mit verbesserten Bandpasseigenschaften und verbessertem Einstellbereich der Eingangs- und Ausgangsimpedanzen

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69632929T Expired - Lifetime DE69632929T2 (de) 1996-05-28 1996-12-06 Akustische Oberflächenwellenvorrichtung mit zwei Moden

Country Status (7)

Country Link
US (4) US5963114A (de)
EP (4) EP1453201A3 (de)
JP (1) JP3239064B2 (de)
KR (1) KR100230655B1 (de)
CN (2) CN1282304C (de)
DE (2) DE69632929T2 (de)
TW (1) TW454378B (de)

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DE19938748B4 (de) 1999-08-16 2007-02-01 Epcos Ag Dualmode-Oberflächenwellen-Filter mit verbesserter Symmetrie und erhöhter Sperrdämpfung
US6720842B2 (en) * 2000-02-14 2004-04-13 Murata Manufacturing Co., Ltd. Surface acoustic wave filter device having first through third surface acoustic wave filter elements
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JP3391347B2 (ja) 2000-06-26 2003-03-31 株式会社村田製作所 縦結合共振子型弾性表面波フィルタ
JP3440935B2 (ja) * 2000-11-29 2003-08-25 株式会社村田製作所 弾性表面波フィルタ
FR2818051B1 (fr) * 2000-12-08 2003-04-11 Thomson Csf Flitres a ondes acoustiques de surface a symetrie optimisee
FR2821997B1 (fr) 2001-03-06 2003-05-30 Thomson Csf Filtre a ondes acoustiques de surface
JP3534080B2 (ja) * 2001-03-23 2004-06-07 株式会社村田製作所 弾性表面波フィルタ装置
JP3509771B2 (ja) * 2001-04-18 2004-03-22 株式会社村田製作所 弾性表面波フィルタ装置、通信装置
JP3873807B2 (ja) * 2001-06-22 2007-01-31 株式会社村田製作所 弾性表面波装置、通信装置
JP3685102B2 (ja) * 2001-07-27 2005-08-17 株式会社村田製作所 弾性表面波フィルタ、通信装置
JP3864850B2 (ja) * 2001-08-09 2007-01-10 株式会社村田製作所 弾性表面波フィルタ、通信装置
JP3826816B2 (ja) * 2001-08-29 2006-09-27 株式会社村田製作所 弾性表面波装置
JP3833569B2 (ja) 2001-12-21 2006-10-11 富士通メディアデバイス株式会社 分波器及びこれを用いた電子装置
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JP2004304513A (ja) 2003-03-31 2004-10-28 Matsushita Electric Ind Co Ltd 弾性表面波装置
JP3985717B2 (ja) 2003-04-10 2007-10-03 株式会社村田製作所 弾性表面波装置およびそれを用いた通信装置
JP4069917B2 (ja) 2004-09-15 2008-04-02 株式会社村田製作所 バランス型弾性表面波フィルタ
JPWO2006095570A1 (ja) * 2005-03-11 2008-08-14 株式会社村田製作所 弾性表面波フィルタ装置
JP4534990B2 (ja) * 2006-01-12 2010-09-01 株式会社村田製作所 弾性表面波フィルタ装置及び分波器
JP5025181B2 (ja) * 2006-07-24 2012-09-12 京セラ株式会社 弾性表面波装置及び通信装置
JP5121178B2 (ja) * 2006-07-24 2013-01-16 京セラ株式会社 弾性表面波装置及び通信装置
WO2009060594A1 (ja) * 2007-11-06 2009-05-14 Panasonic Corporation 弾性波共振器、弾性波フィルタおよびこれを用いたアンテナ共用器
JP5016467B2 (ja) * 2007-12-14 2012-09-05 太陽誘電株式会社 弾性波フィルタ
CN101515793B (zh) * 2009-01-08 2011-06-15 陈明权 声表面波滤波器
TWI466442B (zh) * 2011-12-07 2014-12-21 Ind Tech Res Inst 指叉型耦合共振器
US9325294B2 (en) * 2013-03-15 2016-04-26 Resonant Inc. Microwave acoustic wave filters
US9680447B2 (en) * 2014-09-26 2017-06-13 Wisol Co., Ltd. Saw filter having ground terminals separated
JP6574955B2 (ja) * 2015-07-02 2019-09-18 多摩川精機株式会社 弾性表面波共振器間の相互干渉抑制構造、および加速度センサ
US20180004357A1 (en) * 2016-06-30 2018-01-04 Intel Corporation Piezoelectric package-integrated surface acoustic wave sensing devices
JP6888607B2 (ja) 2018-12-28 2021-06-16 株式会社村田製作所 弾性波フィルタ及びマルチプレクサ

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Also Published As

Publication number Publication date
EP1453201A3 (de) 2006-05-17
TW454378B (en) 2001-09-11
JP3239064B2 (ja) 2001-12-17
CN1495998A (zh) 2004-05-12
EP1204204A3 (de) 2002-05-22
US5963114A (en) 1999-10-05
EP1204206A2 (de) 2002-05-08
EP1453201A2 (de) 2004-09-01
DE69632929D1 (de) 2004-08-19
EP0810727B1 (de) 2004-11-10
EP0810727A2 (de) 1997-12-03
US6111481A (en) 2000-08-29
KR100230655B1 (ko) 1999-11-15
DE69633820T2 (de) 2005-03-17
CN1282304C (zh) 2006-10-25
EP1204204A2 (de) 2002-05-08
DE69632929T2 (de) 2004-11-18
EP1204206A3 (de) 2002-05-22
CN1158026A (zh) 1997-08-27
US6271739B1 (en) 2001-08-07
US6114926A (en) 2000-09-05
KR970077977A (ko) 1997-12-12
CN1140964C (zh) 2004-03-03
JPH09321574A (ja) 1997-12-12
EP1204204B1 (de) 2004-07-14
EP0810727A3 (de) 1998-08-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TAIYO YUDEN CO., LTD., TOKIO/TOKYO, JP

8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE