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ATE556486T1 - Filter mit elastischen wellen - Google Patents

Filter mit elastischen wellen

Info

Publication number
ATE556486T1
ATE556486T1 AT05728857T AT05728857T ATE556486T1 AT E556486 T1 ATE556486 T1 AT E556486T1 AT 05728857 T AT05728857 T AT 05728857T AT 05728857 T AT05728857 T AT 05728857T AT E556486 T1 ATE556486 T1 AT E556486T1
Authority
AT
Austria
Prior art keywords
wave filter
elastic
resonator
cascade
longitudinally
Prior art date
Application number
AT05728857T
Other languages
English (en)
Inventor
Teruhisa Shibahara
Masakazu Tani
Yasuaki Shin
Original Assignee
Murata Manufacturing Co
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 Murata Manufacturing Co filed Critical Murata Manufacturing Co
Application granted granted Critical
Publication of ATE556486T1 publication Critical patent/ATE556486T1/de

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
    • 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
    • H03H9/0222—Details of interface-acoustic, boundary, pseudo-acoustic or Stonely wave devices
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02952—Means for compensation or elimination of undesirable effects of parasitic capacitance
    • 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
    • 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
    • H03H9/14588—Horizontally-split transducers
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Electroluminescent Light Sources (AREA)
AT05728857T 2004-04-19 2005-04-04 Filter mit elastischen wellen ATE556486T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004122925 2004-04-19
PCT/JP2005/006609 WO2005104363A1 (ja) 2004-04-19 2005-04-04 弾性波フィルタおよびそれを用いた通信機

Publications (1)

Publication Number Publication Date
ATE556486T1 true ATE556486T1 (de) 2012-05-15

Family

ID=35197324

Family Applications (1)

Application Number Title Priority Date Filing Date
AT05728857T ATE556486T1 (de) 2004-04-19 2005-04-04 Filter mit elastischen wellen

Country Status (7)

Country Link
US (1) US7760048B2 (de)
EP (1) EP1739830B1 (de)
JP (1) JP4378650B2 (de)
KR (2) KR100763763B1 (de)
CN (1) CN100568723C (de)
AT (1) ATE556486T1 (de)
WO (1) WO2005104363A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI325687B (en) * 2006-02-23 2010-06-01 Murata Manufacturing Co Boundary acoustic wave device and method for producing the same
JP4692629B2 (ja) * 2006-05-30 2011-06-01 株式会社村田製作所 弾性波装置
JP5099330B2 (ja) * 2007-09-07 2012-12-19 Ｔｄｋ株式会社 弾性表面波装置
USD606056S1 (en) * 2009-01-30 2009-12-15 Impinj, Inc. Waveguide assisted core antenna for RFID tags
JP6595342B2 (ja) * 2013-11-29 2019-10-23 京セラ株式会社 弾性波素子、分波器および通信装置
CN107710614B (zh) * 2015-06-24 2021-05-28 株式会社村田制作所 弹性波滤波器、多工器、双工器、高频前端电路以及通信装置
JP2021097313A (ja) * 2019-12-17 2021-06-24 三安ジャパンテクノロジー株式会社 弾性波デバイスパッケージ

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07212174A (ja) 1994-01-11 1995-08-11 Hitachi Ltd 弾性境界波装置
JPH09321567A (ja) 1996-05-28 1997-12-12 Showa Electric Wire & Cable Co Ltd 共振器型ｓａｗフィルタ
DE19818826B4 (de) 1998-04-27 2004-11-04 Epcos Ag Oberflächenwellenfilter mit erhöhter Bandbreite
JP4138093B2 (ja) 1998-09-08 2008-08-20 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
JP4415360B2 (ja) 2000-01-28 2010-02-17 エプソントヨコム株式会社 縦結合弾性表面波フィルタ
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
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
JP3729081B2 (ja) 2000-06-27 2005-12-21 株式会社村田製作所 弾性表面波装置
JP3414387B2 (ja) 2001-03-09 2003-06-09 株式会社村田製作所 弾性表面波装置、通信装置
JP3801083B2 (ja) 2001-06-06 2006-07-26 株式会社村田製作所 弾性表面波装置
JP3638270B2 (ja) 2001-07-13 2005-04-13 松下電器産業株式会社 弾性表面波フィルタ及びそれを用いた通信機器
EP1276235A1 (de) 2001-07-13 2003-01-15 Matsushita Electric Industrial Co., Ltd. Oberflächenwellen Filter und Kommunikationsgerät das diesen benutzt
JP3922163B2 (ja) 2001-12-25 2007-05-30 株式会社村田製作所 弾性表面波装置
EP1515436A3 (de) * 2003-08-29 2005-08-31 Seiko Epson Corporation Akustisches Oberflächenwellenelement und elektronische Apparatur mit dem Element

Also Published As

Publication number Publication date
EP1739830A4 (de) 2009-04-22
KR20070089888A (ko) 2007-09-03
EP1739830A1 (de) 2007-01-03
WO2005104363A1 (ja) 2005-11-03
JP4378650B2 (ja) 2009-12-09
US20080309433A1 (en) 2008-12-18
KR100778226B1 (ko) 2007-11-20
US7760048B2 (en) 2010-07-20
CN100568723C (zh) 2009-12-09
CN1771660A (zh) 2006-05-10
KR20060035595A (ko) 2006-04-26
JPWO2005104363A1 (ja) 2007-08-30
EP1739830B1 (de) 2012-05-02
KR100763763B1 (ko) 2007-10-04

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