BE865722A - - Google Patents

Info

Publication number
BE865722A
BE865722A BE186594A BE186594A BE865722A BE 865722 A BE865722 A BE 865722A BE 186594 A BE186594 A BE 186594A BE 186594 A BE186594 A BE 186594A BE 865722 A BE865722 A BE 865722A
Authority
BE
Belgium
Application number
BE186594A
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
Priority to GB1480677 priority Critical
Priority to GB14806/78A priority patent/GB1583295A/en
Application filed filed Critical
Publication of BE865722A publication Critical patent/BE865722A/xx

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC 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
    • H03H9/6443Coupled resonator filters having two acoustic tracks being acoustically coupled
    • H03H9/6446Coupled resonator filters having two acoustic tracks being acoustically coupled by floating multistrip couplers
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02236Details of surface skimming bulk wave devices
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02535Details of surface acoustic wave devices
    • H03H9/02637Details concerning reflective or coupling arrays
    • H03H9/02669Edge reflection structures, i.e. resonating structures without metallic reflectors, e.g. Bleustein-Gulyaev-Shimizu [BGS], shear horizontal [SH], shear transverse [ST], Love waves devices
    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02535Details of surface acoustic wave devices
    • H03H9/02637Details concerning reflective or coupling arrays
    • H03H9/02779Continuous surface reflective arrays
    • HELECTRICITY
    • H03BASIC ELECTRONIC 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
    • HELECTRICITY
    • H03BASIC ELECTRONIC 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
    • H03BASIC ELECTRONIC 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
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02535Details of surface acoustic wave devices
    • H03H9/02637Details concerning reflective or coupling arrays
    • H03H9/02645Waffle-iron or dot arrays
BE186594A 1977-04-07 1978-04-05 BE865722A (es)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1480677 1977-04-07
GB14806/78A GB1583295A (en) 1977-04-07 1978-02-20 Cases for throwing darts

Publications (1)

Publication Number Publication Date
BE865722A true BE865722A (es) 1978-10-05

Family

ID=26250814

Family Applications (1)

Application Number Title Priority Date Filing Date
BE186594A BE865722A (es) 1977-04-07 1978-04-05

Country Status (9)

Country Link
US (1) US4204178A (es)
JP (1) JPS53126243A (es)
AU (1) AU3476378A (es)
BE (1) BE865722A (es)
DE (1) DE2813445A1 (es)
ES (1) ES468556A1 (es)
FR (1) FR2386936A1 (es)
GB (1) GB1583295A (es)
SE (1) SE7803749L (es)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4290033A (en) * 1979-06-04 1981-09-15 Trw Inc. Shallow bulk acoustic wave devices employing energy trapping
JPS5925525B2 (es) * 1979-08-31 1984-06-19 Tokyo Shibaura Electric Co
JP2547980B2 (ja) * 1984-01-09 1996-10-30 日本電波工業 株式会社 超音波トランスジユ−サとその製造方法
US4599532A (en) * 1984-07-05 1986-07-08 Clarion Co., Ltd. Surface acoustic wave device with anti-reflection electrode structure
GB2193060B (en) * 1986-07-16 1991-04-03 Japan Radio Co Ltd Surface elastic wave filter
US5010270A (en) * 1986-12-22 1991-04-23 Raytheon Company Saw device
US5091051A (en) * 1986-12-22 1992-02-25 Raytheon Company Saw device method
US4965479A (en) * 1987-01-12 1990-10-23 Hewlett-Packard Company Surface transverse wave resonator
FR2619225B1 (fr) * 1987-08-07 1990-05-04 Tafani Christian Systeme de detection, de reconnaissance et d'identification a distance.
EP0362478B1 (de) * 1988-09-14 1995-05-24 Siemens Aktiengesellschaft Akustische Verzögerungsleitung
US4933588A (en) * 1988-12-23 1990-06-12 Raytheon Company Higher order transverse mode suppression in surface acoustic wave resonators
JPH0969751A (ja) * 1995-08-30 1997-03-11 Murata Mfg Co Ltd 弾性表面波フィルタ
US5986523A (en) * 1997-08-29 1999-11-16 Murata Manufacturing Co., Ltd. Edge reflection type longitudinally coupled surface acoustic wave 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
JP2000165184A (ja) * 1998-11-20 2000-06-16 Fujitsu Ltd 弾性表面波素子
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
US6429569B1 (en) 1999-07-22 2002-08-06 Murata Manufacturing Co., Ltd. Surface acoustic wave device and communication apparatus
JP2001308675A (ja) * 2000-04-26 2001-11-02 Murata Mfg Co Ltd 表面波フィルタ及び共用器、通信機装置
DE10117772C2 (de) * 2001-04-09 2003-04-03 Advalytix Ag Mischvorrichtung und Mischverfahren für die Durchmischung kleiner Flüssigkeitsmengen
JP2010088109A (ja) * 2008-09-05 2010-04-15 Panasonic Corp 弾性波素子と、これを用いた電子機器
US7939987B1 (en) * 2008-10-23 2011-05-10 Triquint Semiconductor, Inc. Acoustic wave device employing reflective elements for confining elastic energy
FR2966307B1 (fr) * 2010-10-15 2013-07-12 Commissariat Energie Atomique Filtre a ondes acoustiques comprenant un guidage acoustique integre

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760204A (en) * 1972-03-01 1973-09-18 Motorola Inc Acoustic surface wave resonator
GB1451326A (en) * 1973-02-16 1976-09-29 Nat Res Dev Acoustic wave devices
US4056793A (en) * 1974-03-15 1977-11-01 Texas Instruments Incorporated Acoustic waveguide resonator
US3886504A (en) * 1974-05-20 1975-05-27 Texas Instruments Inc Acoustic surface wave resonator devices

Also Published As

Publication number Publication date
AU3476378A (en) 1979-10-11
DE2813445A1 (de) 1978-10-12
SE7803749L (sv) 1978-10-08
GB1583295A (en) 1981-01-21
ES468556A1 (es) 1978-11-16
FR2386936A1 (fr) 1978-11-03
US4204178A (en) 1980-05-20
JPS53126243A (en) 1978-11-04

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