DE69230114T2 - Akustisches Oberflächenwellenfilter - Google Patents

Akustisches Oberflächenwellenfilter

Info

Publication number
DE69230114T2
DE69230114T2 DE69230114T DE69230114T DE69230114T2 DE 69230114 T2 DE69230114 T2 DE 69230114T2 DE 69230114 T DE69230114 T DE 69230114T DE 69230114 T DE69230114 T DE 69230114T DE 69230114 T2 DE69230114 T2 DE 69230114T2
Authority
DE
Germany
Prior art keywords
wave filter
surface wave
acoustic surface
acoustic
filter
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
DE69230114T
Other languages
English (en)
Other versions
DE69230114T9 (de
DE69230114T4 (de
DE69230114T3 (de
DE69230114D1 (de
Inventor
Yoshio Satoh
Osamu Ikata
Tsutomu Miyashita
Takashi Matsuda
Mitsuo Takamatsu
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.)
Fujitsu 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=26370815&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69230114(T2) "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
Application granted granted Critical
Publication of DE69230114T2 publication Critical patent/DE69230114T2/de
Publication of DE69230114T4 publication Critical patent/DE69230114T4/de
Publication of DE69230114T3 publication Critical patent/DE69230114T3/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
    • H03H9/6436—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
    • 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
    • H03H9/05—Holders; Supports
    • H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
    • H03H9/0566—Constructional combinations of supports or holders with electromechanical or other electronic elements for duplexers
    • H03H9/0576—Constructional combinations of supports or holders with electromechanical or other electronic elements for duplexers including surface acoustic wave [SAW] devices
    • 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
    • H03H9/05—Holders; 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 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
    • H03H9/6483—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
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72—Networks using surface acoustic waves
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H03H9/72—Networks using surface acoustic waves
    • H03H9/725—Duplexers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2250/00—Indexing scheme relating to dual- or multi-band filters
DE69230114T 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter Expired - Lifetime DE69230114T3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28169491 1991-10-28
JP4032270A JP2800905B2 (ja) 1991-10-28 1992-02-19 弾性表面波フィルタ

Publications (3)

Publication Number Publication Date
DE69230114T2 true DE69230114T2 (de) 2000-02-10
DE69230114T4 DE69230114T4 (de) 2000-06-29
DE69230114T3 DE69230114T3 (de) 2000-06-29

Family

ID=26370815

Family Applications (7)

Application Number Title Priority Date Filing Date
DE69230114A Expired - Lifetime DE69230114D1 (de) 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter
DE69232646T Expired - Lifetime DE69232646T2 (de) 1991-10-28 1992-10-27 Akustiches Oberflächenwellenfilter
DE69216769A Expired - Lifetime DE69216769D1 (de) 1991-10-28 1992-10-27 Akustischer Oberflächenwellenfilter
DE69216769T Expired - Lifetime DE69216769T4 (de) 1991-10-28 1992-10-27 Akustischer Oberflächenwellenfilter
DE69233400T Expired - Lifetime DE69233400T2 (de) 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter
DE69230114T Expired - Lifetime DE69230114T3 (de) 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter
DE69233732T Expired - Lifetime DE69233732T2 (de) 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter

Family Applications Before (5)

Application Number Title Priority Date Filing Date
DE69230114A Expired - Lifetime DE69230114D1 (de) 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter
DE69232646T Expired - Lifetime DE69232646T2 (de) 1991-10-28 1992-10-27 Akustiches Oberflächenwellenfilter
DE69216769A Expired - Lifetime DE69216769D1 (de) 1991-10-28 1992-10-27 Akustischer Oberflächenwellenfilter
DE69216769T Expired - Lifetime DE69216769T4 (de) 1991-10-28 1992-10-27 Akustischer Oberflächenwellenfilter
DE69233400T Expired - Lifetime DE69233400T2 (de) 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE69233732T Expired - Lifetime DE69233732T2 (de) 1991-10-28 1992-10-27 Akustisches Oberflächenwellenfilter

Country Status (5)

Country Link
US (4) US5559481A (de)
EP (5) EP0732806B1 (de)
JP (1) JP2800905B2 (de)
KR (1) KR970000559B1 (de)
DE (7) DE69230114D1 (de)

Families Citing this family (150)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40036E1 (en) * 1991-10-28 2008-01-29 Fujitsu Limited Surface acoustic wave filter
JP3379775B2 (ja) 1992-11-17 2003-02-24 富士通株式会社 弾性表面波フィルタ
JPH06338756A (ja) 1993-05-27 1994-12-06 Fujitsu Ltd 共振子型弾性表面波フィルタ
GB2280807B (en) * 1993-08-04 1997-10-22 Advanced Saw Prod Sa Saw filter
DE4447741B4 (de) * 1993-09-06 2004-02-05 Sanyo Electric Co., Ltd., Moriguchi Akustisches Oberflächenwellenfilter
DE4447740B4 (de) * 1993-09-06 2008-10-09 Sanyo Electric Co., Ltd., Moriguchi Akustisches Oberflächenwellenfilter
EP0652637B1 (de) * 1993-11-05 1998-08-12 Matsushita Electric Industrial Co., Ltd. Akustisches Oberflächenwellenfilter
JPH07176912A (ja) * 1993-12-17 1995-07-14 Sanyo Electric Co Ltd 高周波フィルタ
JP3375712B2 (ja) * 1994-01-12 2003-02-10 松下電器産業株式会社 弾性表面波フィルタ
JP3424971B2 (ja) * 1994-01-20 2003-07-07 松下電器産業株式会社 弾性表面波フィルタ
US5471178A (en) * 1994-02-03 1995-11-28 Motorola, Inc. Ladder filter and method for producing conjugately matched impedance
US5847626A (en) * 1994-02-22 1998-12-08 Matsushita Electric Industrial Co., Ltd. Balanced-type surface acoustic wave lattice filter
JPH07264000A (ja) * 1994-03-16 1995-10-13 Fujitsu Ltd 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
JPH07283682A (ja) 1994-04-13 1995-10-27 Murata Mfg Co Ltd 弾性表面波共振子フィルタ
JP3244386B2 (ja) * 1994-08-23 2002-01-07 松下電器産業株式会社 弾性表面波装置
EP0740411A4 (de) * 1994-11-10 1997-11-12 Fujitsu Ltd Akustisches wellenfilter
GB2296614B (en) * 1994-12-23 1999-09-15 Advanced Saw Prod Sa Saw filter
EP1365508A2 (de) * 1995-01-19 2003-11-26 Matsushita Electric Industrial Co., Ltd. Piezoelektrischer Filter, Herstellungsverfahren und Zwischenfrequenzfilter
JP3439289B2 (ja) * 1995-04-10 2003-08-25 三洋電機株式会社 弾性表面波フィルター
US5719537A (en) * 1995-04-10 1998-02-17 Sanyo Electric Co., Ltd. Surface acoustic wave filter with range of a frequency difference between resonance frequencies of series and parallel resonators
JP3358688B2 (ja) * 1995-04-10 2002-12-24 三洋電機株式会社 弾性表面波素子
EP0738039B1 (de) * 1995-04-12 2000-06-28 Matsushita Electric Industrial Co., Ltd. Resonateur-Kettenfilter mit akustischen Oberflächenwellen
JP3243976B2 (ja) * 1995-08-14 2002-01-07 株式会社村田製作所 弾性表面波フィルタ
JPH09121138A (ja) * 1995-08-24 1997-05-06 Fujitsu Ltd フィルタ装置及びこれを用いた無線装置
US5638036A (en) * 1995-09-11 1997-06-10 Motorola, Inc. Acoustic wave ladder filter with unequal series and shunt transducer periodicities and method of making
JPH09167936A (ja) * 1995-10-13 1997-06-24 Fujitsu Ltd 弾性表面波装置
DE19641662B4 (de) * 1995-10-13 2004-07-01 Fujitsu Ltd., Kawasaki Oberflächenakustikwellenvorrichtung mit einem optimierten Schnittwinkel eines piezoelektrischen Substrats
US6172582B1 (en) * 1996-02-20 2001-01-09 Cts Corporation Saw resonator and ladder filter with specified number of reflector electrode fingers
GB2312110B (en) * 1996-03-29 2000-07-05 Advanced Saw Prod Sa Acoustic wave filter
GB2312109B (en) * 1996-03-29 2000-08-02 Advanced Saw Prod Sa Acoustic wave filter
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
DE19638627B4 (de) * 1996-09-20 2007-09-27 Epcos Ag Oberflächenwellen(OFW)-Filter
US6107899A (en) * 1996-10-21 2000-08-22 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter with grounds not connected in the package or on the piezoelectric substrate
JPH10200370A (ja) * 1997-01-10 1998-07-31 Murata Mfg Co Ltd 弾性表面波フィルタ
DE69722168T2 (de) * 1997-02-12 2003-12-18 Oki Electric Ind Co Ltd Akustische Oberflächenwellenfilter mit erzeugten Dämpfungspolen durch Impedanzschaltungen
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
JP3576350B2 (ja) * 1997-04-23 2004-10-13 沖電気工業株式会社 弾性表面波フィルタ
JP3285790B2 (ja) * 1997-05-13 2002-05-27 富士通株式会社 発振回路
TW404091B (en) * 1997-05-16 2000-09-01 Murata Manufacturing Co Ladder filter having edge-reflection type resonators
US6043725A (en) * 1997-05-30 2000-03-28 Matsushita Electric Industrial Co., Ltd. Filter circuit having plural passing bands
JP3171144B2 (ja) * 1997-07-07 2001-05-28 株式会社村田製作所 表面波装置
DE19730710C2 (de) * 1997-07-17 2002-12-05 Epcos Ag Oberflächenwellenakustikfilter mit verbesserter Flankensteilheit
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
US5933062A (en) * 1997-11-04 1999-08-03 Motorola Inc. Acoustic wave ladder filter with effectively increased coupling coefficient and method of providing same
US5949306A (en) * 1997-12-02 1999-09-07 Cts Corporation Saw ladder filter with split resonators and method of providing same
JP3206548B2 (ja) * 1998-05-14 2001-09-10 株式会社村田製作所 表面波フィルタ、共用器、通信機装置
EP1030448B1 (de) * 1998-05-19 2013-11-06 Panasonic Corporation Saw filter, einrichtung zur antennenteilung mit diesem filter und mobiles kommunikationsgerät mit diesem filter
JP3289674B2 (ja) 1998-05-21 2002-06-10 株式会社村田製作所 表面波フィルタ装置、共用器、通信機装置
JP3228223B2 (ja) * 1998-05-26 2001-11-12 株式会社村田製作所 弾性表面波フィルタ
JPH11340774A (ja) 1998-05-26 1999-12-10 Murata Mfg Co Ltd 弾性表面波フィルタ
US6937113B2 (en) * 1998-06-09 2005-08-30 Oki Electric Industry Co., Ltd. Branching filter package
JP2000059176A (ja) 1998-08-06 2000-02-25 Toshiba Corp 弾性表面波素子
JP3498204B2 (ja) * 1999-03-10 2004-02-16 株式会社村田製作所 弾性表面波フィルタ、それを用いた通信機装置
JP2000286676A (ja) 1999-03-31 2000-10-13 Sanyo Electric Co Ltd 弾性表面波フィルター
JP2001024475A (ja) 1999-07-09 2001-01-26 Oki Electric Ind Co Ltd 弾性表面波フィルタ
JP2001223554A (ja) 2000-02-07 2001-08-17 Murata Mfg Co Ltd 弾性表面波フィルタ
JP3478264B2 (ja) * 2000-03-10 2003-12-15 株式会社村田製作所 弾性表面波装置
JP2001267881A (ja) * 2000-03-17 2001-09-28 Fujitsu Media Device Kk 弾性表面波デバイス及びこれを用いた通信装置、並びにアンテナデュプレクサ
US6570470B2 (en) 2000-06-30 2003-05-27 Kyocera Corporation Surface acoustic wave ladder filter utilizing parallel resonators with different resonant frequencies
JP2002141771A (ja) * 2000-08-21 2002-05-17 Murata Mfg Co Ltd 弾性表面波フィルタ装置
DE10047343B4 (de) * 2000-09-25 2004-04-15 Siemens Ag Resonatoranordnung
DE10057848B4 (de) * 2000-11-22 2014-01-02 Epcos Ag Reaktanzfilter mit verbesserter Leistungsverträglichkeit
FI113111B (fi) * 2000-11-24 2004-02-27 Nokia Corp Pietsosähköisiä resonaattoreita käsittävä suodinrakenne ja järjestely
JP2002314372A (ja) * 2001-02-07 2002-10-25 Murata Mfg Co Ltd 弾性表面波フィルタ装置
US20020111151A1 (en) * 2001-02-15 2002-08-15 Irion Reed A. Block downconverter using a SBAR bandpass filter in a superheterodyne receiver
EP1296454B1 (de) 2001-09-25 2013-05-22 TDK Corporation Akustisches Oberflächenwellenelement und akustische Oberflächenwellenvorrichtung
JP3913558B2 (ja) * 2002-01-22 2007-05-09 沖電気工業株式会社 有極型弾性表面波フィルタ
JP4056762B2 (ja) * 2002-02-25 2008-03-05 富士通メディアデバイス株式会社 弾性表面波装置
DE10208666A1 (de) * 2002-02-28 2003-09-04 Marconi Comm Gmbh Bandpassfilter mit parallelen Signalwegen
JP2003298392A (ja) 2002-03-29 2003-10-17 Fujitsu Media Device Kk フィルタチップ及びフィルタ装置
US6946772B2 (en) 2002-05-14 2005-09-20 Tdk Corporation Saw element, saw device and branching filter
JP3855842B2 (ja) * 2002-05-16 2006-12-13 株式会社村田製作所 弾性表面波分波器およびそれを有する通信装置
JP3896907B2 (ja) 2002-06-19 2007-03-22 株式会社村田製作所 弾性表面波フィルタ、分波器、通信機
US6833774B2 (en) * 2002-06-25 2004-12-21 Sawtek, Inc. Surface acoustic wave filter
JP3789410B2 (ja) * 2002-08-29 2006-06-21 富士通メディアデバイス株式会社 表面実装型電子部品モジュールおよびその製造方法
JP2004096250A (ja) 2002-08-29 2004-03-25 Murata Mfg Co Ltd 弾性表面波フィルタ、通信装置
DE10342991A1 (de) 2002-09-18 2004-04-22 Nrs Technologies Inc. SAW-Filter
JP2004120016A (ja) 2002-09-20 2004-04-15 Fujitsu Media Device Kk フィルタ装置
JP3859573B2 (ja) * 2002-10-21 2006-12-20 富士通メディアデバイス株式会社 弾性表面波フィルタ及びフィルタ装置
JP2004173245A (ja) 2002-10-30 2004-06-17 Murata Mfg Co Ltd ラダー型フィルタ、分波器、および通信機
JP3963824B2 (ja) * 2002-11-22 2007-08-22 富士通メディアデバイス株式会社 フィルタ素子、それを有するフィルタ装置、分波器及び高周波回路
DE10302633B4 (de) * 2003-01-23 2013-08-22 Epcos Ag SAW-Bauelement mit verbessertem Temperaturgang
JP3778902B2 (ja) * 2003-04-28 2006-05-24 富士通メディアデバイス株式会社 分波器及び電子装置
US7327206B2 (en) 2003-06-16 2008-02-05 Murata Manufacturing Co., Ltd. Surface acoustic wave duplexer
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
JP2005045475A (ja) 2003-07-28 2005-02-17 Murata Mfg Co Ltd 弾性表面波装置、通信機
WO2005013481A1 (ja) 2003-07-30 2005-02-10 Matsushita Electric Industrial Co., Ltd. 弾性表面波フィルタ
CN100530958C (zh) * 2003-10-16 2009-08-19 京瓷株式会社 复合型分波电路、用其的芯片零件、高频模块及无线通信设备
EP1533897A3 (de) 2003-11-20 2010-06-30 Panasonic Corporation Filter mit piezoelektrischem Resonator
US7479847B2 (en) 2003-11-20 2009-01-20 Panasonic Corporation Filter using piezoelectric resonator
JP4230347B2 (ja) * 2003-12-19 2009-02-25 富士通メディアデバイス株式会社 弾性表面波フィルタ
US7068126B2 (en) * 2004-03-04 2006-06-27 Discera Method and apparatus for frequency tuning of a micro-mechanical resonator
US7327205B2 (en) 2004-03-12 2008-02-05 Murata Manufacturing Co., Ltd. Demultiplexer and surface acoustic wave filter
JP2004248321A (ja) * 2004-04-22 2004-09-02 Oki Electric Ind Co Ltd 有極型ｓａｗ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
WO2006016544A1 (ja) * 2004-08-11 2006-02-16 Murata Manufacturing Co., Ltd. デュプレクサ及び通信装置
US7554422B2 (en) 2004-09-10 2009-06-30 Panasonic Corporation Filter module using piezoelectric resonators, duplexer, communication device, and method for fabricating filter module
JP2006129445A (ja) 2004-09-28 2006-05-18 Fujitsu Media Device Kk 分波器
KR100760780B1 (ko) 2004-09-28 2007-09-21 후지쓰 메디아 데바이스 가부시키가이샤 분파기
US20060158281A1 (en) * 2004-11-18 2006-07-20 Steven Garris SAW ladder filter
US20060149513A1 (en) * 2005-01-06 2006-07-06 Sangpil Yoon Method and system for simulating a surface acoustic wave on a modeled structure
JP4466655B2 (ja) * 2005-05-20 2010-05-26 株式会社村田製作所 弾性境界波装置
JP4979897B2 (ja) * 2005-05-25 2012-07-18 太陽誘電株式会社 弾性波フィルタおよび弾性波分波器
US7274275B2 (en) * 2005-06-10 2007-09-25 Avago Technologies Wireless Ip (Singapore) Pte. Ltd. Bandpass filter network and method for bandpass filtering signals using multiple acoustic resonators
EP1898525B1 (de) 2005-06-30 2013-05-22 Panasonic Corporation Akustischer resonator und filter
JP2007060411A (ja) 2005-08-25 2007-03-08 Fujitsu Media Device Kk 分波器
JP4680727B2 (ja) * 2005-09-08 2011-05-11 株式会社日立メディアエレクトロニクス 共振器型フィルタ
US20070159274A1 (en) 2005-12-26 2007-07-12 Tatsunori Onzuka SAW filter and portable terminal
DE102006027060B4 (de) * 2006-06-08 2010-04-01 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Oszillatorkreis mit akustischen Eintor-Oberflächenwellenresonatoren
US7639103B2 (en) 2006-06-26 2009-12-29 Panasonic Corporation Piezoelectric filter, antenna duplexer, and communications apparatus employing piezoelectric resonator
JP5016871B2 (ja) * 2006-08-23 2012-09-05 日本碍子株式会社 受動部品
KR100777451B1 (ko) * 2006-10-31 2007-11-21 삼성전자주식회사 박막 벌크 음향 공진기 필터 및 듀플렉서
EP1976116A1 (de) * 2007-03-29 2008-10-01 Laird Technologies AB Antennenanordnung für ein tragbares Funkkommunikationsgerät
US7646265B2 (en) * 2007-04-11 2010-01-12 Maxim Integrated Products, Inc. BAW resonator filter bandwidth and out-of-band frequency rejection
JP4578575B2 (ja) 2008-07-30 2010-11-10 京セラ株式会社 分波器、通信用モジュール部品、及び通信装置
JP5237138B2 (ja) 2009-01-27 2013-07-17 太陽誘電株式会社 フィルタ、デュープレクサ、通信モジュール
CN102334291B (zh) 2009-03-10 2014-03-12 株式会社村田制作所 梯型弹性波滤波器
DE102009032840B4 (de) * 2009-07-13 2015-02-05 Epcos Ag SAW-Filterschaltung mit verbesserter ESD-Festigkeit
US8169279B2 (en) * 2009-10-23 2012-05-01 Lojack Operating Company, Lp Notched saw image frequency rejection filter system
KR101350244B1 (ko) * 2010-01-28 2014-01-13 가부시키가이샤 무라타 세이사쿠쇼 튜너블 필터
SG183135A1 (en) 2010-02-04 2012-09-27 Taiyo Yuden Kk Filter, duplexer, communication module, communication device
JP2011205625A (ja) * 2010-03-02 2011-10-13 Panasonic Corp ラダー型フィルタ
US8654743B1 (en) * 2010-10-29 2014-02-18 Lilee Systems, Ltd Device and method for configurable transmit and receive antennas
WO2012105337A1 (ja) 2011-01-31 2012-08-09 京セラ株式会社 分波器および通信用モジュール部品
US9099986B2 (en) 2011-09-30 2015-08-04 Qualcomm Mems Technologies, Inc. Cross-sectional dilation mode resonators
CN102694519A (zh) * 2012-04-28 2012-09-26 南京航空航天大学 集总参数三频阻抗匹配网络
DE102013100286B3 (de) * 2013-01-11 2014-06-05 Epcos Ag Breitbandiges Filter in Abzweigtechnik
US9325294B2 (en) * 2013-03-15 2016-04-26 Resonant Inc. Microwave acoustic wave filters
EP2974013B1 (de) * 2013-03-15 2022-11-23 SnapTrack, Inc. Reaktanzfilter mit klangwellenresonatoren
JP6164292B2 (ja) * 2013-05-28 2017-07-19 株式会社村田製作所 チューナブルフィルタ
JP2015119449A (ja) * 2013-12-20 2015-06-25 株式会社村田製作所 弾性表面波フィルタ
JP2015119452A (ja) * 2013-12-20 2015-06-25 株式会社村田製作所 弾性表面波フィルタ
WO2016017307A1 (ja) 2014-07-28 2016-02-04 株式会社村田製作所 ラダー型フィルタ
WO2016031391A1 (ja) 2014-08-26 2016-03-03 株式会社村田製作所 ラダー型フィルタ及びデュプレクサ
CN107210730B (zh) 2015-01-27 2020-10-30 京瓷株式会社 滤波器、分波器以及通信装置
WO2016190216A1 (ja) 2015-05-22 2016-12-01 京セラ株式会社 弾性波装置および通信装置
JP6481758B2 (ja) 2015-06-24 2019-03-13 株式会社村田製作所 弾性波フィルタ、マルチプレクサ、デュプレクサ、高周波フロントエンド回路、および通信装置
US20170085246A1 (en) * 2015-09-17 2017-03-23 Ishiang Shih Tunable surface acoustic wave resonators and filters
US10998880B2 (en) 2016-03-31 2021-05-04 Kyocera Corporation Acoustic wave element and communication apparatus
JP6556094B2 (ja) 2016-05-11 2019-08-07 太陽誘電株式会社 フィルタおよびマルチプレクサ
WO2018012274A1 (ja) * 2016-07-15 2018-01-18 株式会社村田製作所 ラダー型周波数可変フィルタ、マルチプレクサ、高周波フロントエンド回路、および、通信端末
DE102016114662B4 (de) * 2016-08-08 2022-03-03 Snaptrack, Inc. Rekonfigurierbares mikroakustisches Filter und Duplexer mit rekonfigurierbarem mikroakustischem Filter
WO2018037968A1 (ja) * 2016-08-26 2018-03-01 株式会社村田製作所 弾性波フィルタ装置、マルチプレクサ、高周波フロントエンド回路および通信装置
WO2018123698A1 (ja) 2016-12-27 2018-07-05 株式会社村田製作所 高周波モジュールおよび通信装置
WO2018147135A1 (ja) * 2017-02-07 2018-08-16 株式会社村田製作所 高周波フィルタ、高周波フロントエンド回路及び通信装置
EP3701630A1 (de) * 2017-10-24 2020-09-02 RF360 Europe GmbH Hf-filter und verfahren zum entwurf eines hf-filters
US10951194B2 (en) 2017-12-20 2021-03-16 Kyocera Corporation Acoustic wave filter, multiplexer, and communication apparatus
US11424525B2 (en) 2020-10-19 2022-08-23 Wi-LAN Research Inc. Duplexers and related devices for 5G/6G and subsequent protocols and for mm-wave and terahertz applications
WO2022145385A1 (ja) * 2020-12-28 2022-07-07 株式会社村田製作所 フィルタ装置
JP2022117669A (ja) * 2021-02-01 2022-08-12 東京エレクトロン株式会社 フィルタ回路及びプラズマ処理装置

Family Cites Families (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US158074A (en) 1874-12-22 Improvement in bush-hammers
US3582540A (en) * 1969-04-17 1971-06-01 Zenith Radio Corp Signal translating apparatus using surface wave acoustic device
US3836876A (en) * 1971-05-05 1974-09-17 Secr Defence Acoustic surface wave devices
US4166258A (en) * 1974-08-29 1979-08-28 International Business Machines Corporation Thin-film integrated circuit with tank circuit characteristics and applications to thin-film filters and oscillators
JPS5219044A (en) * 1975-08-04 1977-01-14 Nippon Telegr & Teleph Corp <Ntt> Surface acoustic wave filter
JPS5248452A (en) 1975-10-16 1977-04-18 Toshiba Corp Ladder-type piezoelectric filter
US4044321A (en) * 1976-03-01 1977-08-23 Rockwell International Corporation Surface acoustic wave band pass filtering
JPS53105156A (en) 1977-02-24 1978-09-13 Nec Corp Ladder-type piezo-electric filter
JPS5411120A (en) 1977-06-28 1979-01-27 Taisei Prefab Constr Surface finishing of plastic material products
JPS5569012A (en) * 1978-11-21 1980-05-24 Federal Prod Corp Analog digital display unit
JPS5647116A (en) * 1979-09-25 1981-04-28 Murata Mfg Co Ltd Surface elastic wave device
JPS5650613A (en) 1979-10-01 1981-05-07 Hitachi Ltd Elastic surface wave device
JPS5662416A (en) 1979-10-27 1981-05-28 Tohoku Metal Ind Ltd Constituting method of ladder type ceramic filter
JPS56165428U (de) * 1980-05-09 1981-12-08
JPS56165428A (en) * 1980-05-23 1981-12-19 Matsushita Electric Ind Co Ltd Lincompex radio device
JPS5820002A (ja) 1981-07-28 1983-02-05 Murata Mfg Co Ltd 高周波部品の接続構造
US4625184A (en) * 1982-07-02 1986-11-25 Clarion Co., Ltd. Surface acoustic wave device with impedance matching network formed thereon
US4495431A (en) * 1983-08-22 1985-01-22 United Technologies Corporation Low reflectivity surface-mounted electrodes on semiconductive saw devices
JPS6081911A (ja) * 1983-10-12 1985-05-10 Mitsubishi Electric Corp フイルタバンク
JPS6081910A (ja) * 1983-10-12 1985-05-10 Mitsubishi Electric Corp フイルタバンク
JPS60114010A (ja) 1983-11-25 1985-06-20 Toshiba Corp 弾性表面波共振子
JPS61127220A (ja) 1984-11-26 1986-06-14 Hitachi Ltd 弾性表面波装置
JPH0697727B2 (ja) * 1985-03-27 1994-11-30 株式会社日立製作所 弾性表面波フィルタ
US4684841A (en) * 1985-04-01 1987-08-04 Northern Telecom Limited Saw devices including resistive films
US4694266A (en) * 1986-07-29 1987-09-15 R. F. Monolithic, Inc. Notch filter
JPS6388910A (ja) * 1986-10-02 1988-04-20 Toyo Commun Equip Co Ltd 弾性表面波共振子
JPS63132515A (ja) * 1986-11-25 1988-06-04 Hitachi Ltd 弾性表面波複合フイルタ
JPS6423612A (en) * 1987-07-20 1989-01-26 Hitachi Ltd Elastic surface wave device
US5015973A (en) * 1987-08-31 1991-05-14 Oki Electric Industry Co., Ltd. Duplexer with an isolating circuit on a dielectric plate
JPS6478511A (en) 1987-09-21 1989-03-24 Hitachi Ltd Surface acoustic wave device
JPH0831770B2 (ja) * 1987-12-25 1996-03-27 三菱電機株式会社 周波数弁別装置
US4785270A (en) * 1987-12-30 1988-11-15 Motorola Inc. Monolithic lattice saw filter
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
JPH01260911A (ja) 1988-04-11 1989-10-18 Hitachi Ltd 弾性表面波共振器複合形フィルタ
JP2596447B2 (ja) * 1988-05-17 1997-04-02 三菱電機株式会社 周波数弁別装置
US4978879A (en) * 1988-07-27 1990-12-18 Fujitsu Limited Acoustic surface wave element
JPH0258915A (ja) 1988-08-24 1990-02-28 Murata Mfg Co Ltd 弾性表面波共振子
JPH0269012A (ja) 1988-09-05 1990-03-08 Oki Electric Ind Co Ltd 分波器
JPH02295212A (ja) * 1989-05-09 1990-12-06 Fujitsu Ltd 弾性表面波共振子
JPH036913A (ja) * 1989-06-05 1991-01-14 Hitachi Ltd 弾性表面波フィルタ及びそれを用いた移動無線装置
EP0401729A1 (de) * 1989-06-09 1990-12-12 Thyssen Edelstahlwerke AG Verwendung von ausscheidungshärtbaren ferritisch-perlitischen Stählen für erhöhten Temperaturen ausgesetzte Bauteile
US5202652A (en) * 1989-10-13 1993-04-13 Hitachi, Ltd. Surface acoustic wave filter device formed on a plurality of piezoelectric substrates
JPH03220911A (ja) * 1990-01-26 1991-09-30 Fujitsu Ltd 弾性表面波フィルタ
US5039957A (en) * 1990-05-07 1991-08-13 Raytheon Company High power surface acoustic wave devices having copper and titanium doped aluminum transducers and long-term frequency stability
JP3337073B2 (ja) * 1990-05-09 2002-10-21 株式会社村田製作所 弾性表面波装置
US5059848A (en) * 1990-08-20 1991-10-22 The United States Of America As Represented By The Secretary Of The Army Low-cost saw packaging technique
JP3090218B2 (ja) * 1991-01-30 2000-09-18 キンセキ株式会社 弾性表面波装置
JPH04253414A (ja) * 1991-01-30 1992-09-09 Hitachi Ltd 弾性表面波共振器複合形フィルタを用いた分波器
JP3220911B2 (ja) 1991-10-31 2001-10-22 大日本印刷株式会社 透過型スクリーン及びその製造方法
JP3388475B2 (ja) * 1991-12-16 2003-03-24 富士通株式会社 分波器
US5294898A (en) * 1992-01-29 1994-03-15 Motorola, Inc. Wide bandwidth bandpass filter comprising parallel connected piezoelectric resonators
JPH05206778A (ja) 1992-01-30 1993-08-13 Hitachi Ltd 弾性表面波共振器複合型フィルタ
DE4205671A1 (de) * 1992-02-25 1993-08-26 Porsche Ag Gangschaltgetriebe eines kraftfahrzeugs
JP3219044B2 (ja) 1997-03-31 2001-10-15 松下電器産業株式会社 環形蛍光ランプ

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EP0928064A2 (de) 1999-07-07
USRE37375E1 (en) 2001-09-18
USRE37790E1 (en) 2002-07-16
KR970000559B1 (ko) 1997-01-13
EP1193870B1 (de) 2008-03-19
JPH05183380A (ja) 1993-07-23
DE69233400D1 (de) 2004-09-16
DE69216769D1 (de) 1997-02-27
DE69216769T3 (de) 2001-04-26
EP0928064A3 (de) 1999-09-01
DE69216769T4 (de) 2002-03-14
EP0541284A1 (de) 1993-05-12
EP1193869A3 (de) 2002-08-07
US5631612A (en) 1997-05-20
EP0732806A2 (de) 1996-09-18
KR930009239A (ko) 1993-05-22
DE69232646D1 (de) 2002-07-18
EP0928064B1 (de) 2002-06-12
DE69216769T2 (de) 1997-05-07
DE69232646T2 (de) 2002-10-02
DE69230114T4 (de) 2000-06-29
EP1193869A2 (de) 2002-04-03
DE69233400T2 (de) 2004-12-23
EP0732806B1 (de) 1999-10-06
DE69233732T2 (de) 2009-04-30
DE69230114T3 (de) 2000-06-29
EP0541284B1 (de) 1997-01-15
EP1193870A2 (de) 2002-04-03
EP1193869B1 (de) 2004-08-11
DE69230114D1 (de) 1999-11-11
JP2800905B2 (ja) 1998-09-21
US5559481A (en) 1996-09-24
EP0541284B2 (de) 2000-07-19
DE69233732D1 (de) 2008-04-30
EP1193870A3 (de) 2002-08-07

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