SG73987A1 - Acoustic surface wave filter - Google Patents

Acoustic surface wave filter

Info

Publication number
SG73987A1
SG73987A1 SG1996010540A SG1996010540A SG73987A1 SG 73987 A1 SG73987 A1 SG 73987A1 SG 1996010540 A SG1996010540 A SG 1996010540A SG 1996010540 A SG1996010540 A SG 1996010540A SG 73987 A1 SG73987 A1 SG 73987A1
Authority
SG
Singapore
Prior art keywords
wave filter
surface wave
acoustic surface
acoustic
filter
Prior art date
Application number
SG1996010540A
Other languages
English (en)
Inventor
Kazuhiko Morozumi
Michio Kadota
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
Publication of SG73987A1 publication Critical patent/SG73987A1/en

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
    • H03H9/25—Constructional features of resonators 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02669—Edge reflection structures, i.e. resonating structures without metallic reflectors, e.g. Bleustein-Gulyaev-Shimizu [BGS], shear horizontal [SH], shear transverse [ST], Love waves 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02614—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves
    • H03H9/02622—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves of the surface, including back surface
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02866—Means for compensation or elimination of undesirable effects of bulk wave excitation and reflections

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
SG1996010540A 1995-08-30 1996-08-28 Acoustic surface wave filter SG73987A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7222139A JPH0969751A (ja) 1995-08-30 1995-08-30 弾性表面波フィルタ

Publications (1)

Publication Number Publication Date
SG73987A1 true SG73987A1 (en) 2000-07-18

Family

ID=16777793

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996010540A SG73987A1 (en) 1995-08-30 1996-08-28 Acoustic surface wave filter

Country Status (7)

Country Link
US (1) US5838217A (ja)
EP (1) EP0762643B1 (ja)
JP (1) JPH0969751A (ja)
KR (1) KR100198161B1 (ja)
DE (1) DE69620524T2 (ja)
SG (1) SG73987A1 (ja)
TW (1) TW327010U (ja)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3233087B2 (ja) * 1997-01-20 2001-11-26 株式会社村田製作所 弾性表面波フィルタ
JP3171144B2 (ja) * 1997-07-07 2001-05-28 株式会社村田製作所 表面波装置
US5986523A (en) * 1997-08-29 1999-11-16 Murata Manufacturing Co., Ltd. Edge reflection type longitudinally coupled surface acoustic wave filter
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
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
JP3341709B2 (ja) * 1998-06-01 2002-11-05 株式会社村田製作所 表面波装置及びそれを用いた通信装置
JP3298538B2 (ja) * 1999-02-16 2002-07-02 株式会社村田製作所 端面反射縦結合型ｓａｗ共振子フィルタ
JP3341699B2 (ja) 1999-02-18 2002-11-05 株式会社村田製作所 端面反射型表面波装置
JP2000244275A (ja) 1999-02-19 2000-09-08 Murata Mfg Co Ltd Ｓａｗ共振子フィルタ
JP3587354B2 (ja) * 1999-03-08 2004-11-10 株式会社村田製作所 横結合共振子型表面波フィルタ及び縦結合共振子型表面波フィルタ
JP2000278091A (ja) * 1999-03-19 2000-10-06 Murata Mfg Co Ltd 端面反射型表面波装置
JP3353742B2 (ja) * 1999-05-07 2002-12-03 株式会社村田製作所 表面波共振子、表面波装置、通信機装置
JP3705722B2 (ja) * 1999-10-20 2005-10-12 株式会社村田製作所 表面波装置
JP2001136048A (ja) 1999-11-09 2001-05-18 Nec Corp 弾性表面波フィルタ
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
JP3402311B2 (ja) * 2000-05-19 2003-05-06 株式会社村田製作所 弾性表面波装置
JP3797155B2 (ja) * 2000-09-06 2006-07-12 株式会社村田製作所 端面反射型表面波装置の周波数調整方法
JP3918497B2 (ja) * 2000-11-02 2007-05-23 株式会社村田製作所 端面反射型表面波装置
JP4174661B2 (ja) 2001-01-10 2008-11-05 セイコーエプソン株式会社 弾性表面波装置及びその製造方法
JP3760378B2 (ja) * 2001-09-14 2006-03-29 株式会社村田製作所 端面反射型表面波装置及びその製造方法
US7002418B2 (en) * 2004-05-07 2006-02-21 Lattice Semiconductor Corporation Control signal generation for a low jitter switched-capacitor frequency synthesizer
JP4254772B2 (ja) * 2005-01-17 2009-04-15 セイコーエプソン株式会社 弾性表面波装置
CN100544201C (zh) * 2005-12-16 2009-09-23 中国科学院声学研究所 一种宽带声表面波可开关滤波器组
WO2015005267A1 (ja) * 2013-07-08 2015-01-15 株式会社村田製作所 弾性波装置
JP6335492B2 (ja) * 2013-11-29 2018-05-30 太陽誘電株式会社 弾性波素子
JP6447624B2 (ja) * 2014-03-14 2019-01-09 株式会社村田製作所 弾性波装置
JP2018037719A (ja) * 2016-08-29 2018-03-08 株式会社村田製作所 弾性波装置
US11258427B2 (en) * 2016-11-25 2022-02-22 Tohoku University Acoustic wave devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1583295A (en) * 1977-04-07 1981-01-21 Woodhead R W Cases for throwing darts
GB2000409A (en) * 1977-04-07 1979-01-04 Philips Electronic Associated Resonators employing surface skimming bulk waves
JPH0426211A (ja) * 1990-05-21 1992-01-29 Murata Mfg Co Ltd 表面波装置

Also Published As

Publication number Publication date
JPH0969751A (ja) 1997-03-11
DE69620524D1 (de) 2002-05-16
DE69620524T2 (de) 2002-10-10
US5838217A (en) 1998-11-17
KR100198161B1 (ko) 1999-06-15
EP0762643B1 (en) 2002-04-10
KR970013494A (ko) 1997-03-29
TW327010U (en) 1998-02-11
EP0762643A1 (en) 1997-03-12

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