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NO20014545L - Overflate-akustisk bölgefilter - Google Patents

Overflate-akustisk bölgefilter

Info

Publication number
NO20014545L
NO20014545L NO20014545A NO20014545A NO20014545L NO 20014545 L NO20014545 L NO 20014545L NO 20014545 A NO20014545 A NO 20014545A NO 20014545 A NO20014545 A NO 20014545A NO 20014545 L NO20014545 L NO 20014545L
Authority
NO
Norway
Prior art keywords
acoustic wave
surface acoustic
wave filter
filter
wave
Prior art date
Application number
NO20014545A
Other languages
English (en)
Other versions
NO20014545D0 (no
Inventor
Naoki Takahashi
Original Assignee
Toyo Communication Equip
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 Toyo Communication Equip filed Critical Toyo Communication Equip
Publication of NO20014545L publication Critical patent/NO20014545L/no
Publication of NO20014545D0 publication Critical patent/NO20014545D0/no

Links

Classifications

    • 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
    • H03H9/644—Coupled resonator filters having two acoustic tracks
    • H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6469—Coupled resonator filters having two acoustic tracks being electrically coupled via two connecting electrodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0047—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks
    • H03H9/0052—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded
    • H03H9/0061—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having two acoustic tracks being electrically cascaded the balanced terminals being on opposite sides of the tracks
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14538—Formation
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • H03H9/14582—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers having a different pitch
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • H03H9/14585—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers being split
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • 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
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14552—Transducers of particular shape or position comprising split fingers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
NO20014545A 2000-01-28 2001-09-19 Overflate-akustisk bölgefilter NO20014545D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2000020779A JP4415360B2 (ja) 2000-01-28 2000-01-28 縦結合弾性表面波フィルタ
PCT/JP2001/000378 WO2001056151A1 (fr) 2000-01-28 2001-01-22 Filtre a ondes acoustiques de surface a couplage longitudinal

Publications (2)

Publication Number Publication Date
NO20014545L true NO20014545L (no) 2001-09-19
NO20014545D0 NO20014545D0 (no) 2001-09-19

Family

ID=18547287

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20014545A NO20014545D0 (no) 2000-01-28 2001-09-19 Overflate-akustisk bölgefilter

Country Status (6)

Country Link
US (1) US6504454B2 (no)
EP (1) EP1175006B1 (no)
JP (1) JP4415360B2 (no)
DE (1) DE60127351T2 (no)
NO (1) NO20014545D0 (no)
WO (1) WO2001056151A1 (no)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3419402B2 (ja) 2001-04-16 2003-06-23 株式会社村田製作所 弾性表面波装置、通信装置
JP3391346B2 (ja) 2000-04-18 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
JP3358615B2 (ja) 2000-06-26 2002-12-24 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
JP3478260B2 (ja) * 2000-10-27 2003-12-15 株式会社村田製作所 弾性表面波フィルタおよび通信機装置
US6740666B2 (en) 2000-12-20 2004-05-25 Merck & Co., Inc. Substituted 8-arylquinoline phosphodiesterase-4 inhibitors
KR100609219B1 (ko) 2001-04-09 2006-08-02 가부시키가이샤 무라타 세이사쿠쇼 탄성표면파 장치 및 통신 장치
JP3454260B2 (ja) 2001-04-09 2003-10-06 株式会社村田製作所 弾性表面波フィルタ、通信装置
EP1276235A1 (en) 2001-07-13 2003-01-15 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter and communication device using the filter
DE10304470B4 (de) * 2003-02-04 2013-09-05 Epcos Ag Mit akustischen Oberflächenwellen arbeitendes elektronisches Bauelement
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
EP1737126A4 (en) * 2004-04-16 2008-01-16 Epson Toyocom Corp SURFACE WAVE FILTER OF THE SYMMETRICAL TYPE
KR100778226B1 (ko) 2004-04-19 2007-11-20 가부시키가이샤 무라타 세이사쿠쇼 탄성파 필터 및 그것을 사용한 통신기
DE102004020183B4 (de) * 2004-04-22 2015-12-03 Epcos Ag Oberflächenwellen-Resonatorfilter mit longitudinal gekoppelten Wandlern
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
KR100631412B1 (ko) 2005-05-06 2006-10-04 삼성전기주식회사 직렬 2트랙 구조를 갖는 이중모드 표면탄성파 필터
WO2008078496A1 (ja) * 2006-12-25 2008-07-03 Murata Manufacturing Co., Ltd. 弾性波装置
DE102012112237A1 (de) 2012-12-13 2014-06-18 Epcos Ag Elektroakustisches Bandpassfilter mit geglätteter Einfügedämpfung
JP6625579B2 (ja) * 2017-03-21 2019-12-25 太陽誘電株式会社 弾性波フィルタ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08213876A (ja) * 1995-02-03 1996-08-20 Matsushita Electric Ind Co Ltd 横結合多重モードｓａｗフィルタ
DE19638399C3 (de) * 1996-09-19 2002-04-18 Epcos Ag Oberflächenwellenfilter
JP3849289B2 (ja) * 1997-04-10 2006-11-22 株式会社村田製作所 弾性表面波装置
JP3890667B2 (ja) * 1997-04-16 2007-03-07 エプソントヨコム株式会社 縦結合二重モードｓａｗフィルタ
JP2000049558A (ja) * 1998-07-24 2000-02-18 Seiko Epson Corp 弾性表面波フィルタ

Also Published As

Publication number Publication date
EP1175006A1 (en) 2002-01-23
DE60127351D1 (de) 2007-05-03
WO2001056151A1 (fr) 2001-08-02
US20020135441A1 (en) 2002-09-26
NO20014545D0 (no) 2001-09-19
US6504454B2 (en) 2003-01-07
EP1175006B1 (en) 2007-03-21
EP1175006A4 (en) 2006-02-08
JP2001217680A (ja) 2001-08-10
JP4415360B2 (ja) 2010-02-17
DE60127351T2 (de) 2007-07-05

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application