FR2623348B1 - Dispositif a ondes elastiques de surface - Google Patents

Dispositif a ondes elastiques de surface

Info

Publication number
FR2623348B1
FR2623348B1 FR8814960A FR8814960A FR2623348B1 FR 2623348 B1 FR2623348 B1 FR 2623348B1 FR 8814960 A FR8814960 A FR 8814960A FR 8814960 A FR8814960 A FR 8814960A FR 2623348 B1 FR2623348 B1 FR 2623348B1
Authority
FR
France
Prior art keywords
wave device
elastic wave
surface elastic
wave
elastic
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
FR8814960A
Other languages
English (en)
Other versions
FR2623348A1 (fr
Inventor
Yatsuda Hiromi
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio Co 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
Application filed by Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Publication of FR2623348A1 publication Critical patent/FR2623348A1/fr
Application granted granted Critical
Publication of FR2623348B1 publication Critical patent/FR2623348B1/fr
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
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02779—Continuous surface reflective arrays
    • H03H9/02787—Continuous surface reflective arrays having wave guide like arrangements
    • 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
    • H03H9/02858—Means for compensation or elimination of undesirable effects of wave front distortion
    • 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
    • H03H9/02874—Means for compensation or elimination of undesirable effects of direct coupling between input and output transducers
    • 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
    • H03H9/125—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
    • H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger transducers
    • 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
    • H03H9/125—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
    • H03H9/14558—Slanted, tapered or fan shaped transducers
    • 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
    • H03H9/125—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
    • H03H9/14561—Arched, curved or ring shaped transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR8814960A 1987-11-17 1988-11-17 Dispositif a ondes elastiques de surface Expired - Lifetime FR2623348B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62288556A JP2606708B2 (ja) 1987-11-17 1987-11-17 弾性表面波フィルタ

Publications (2)

Publication Number Publication Date
FR2623348A1 FR2623348A1 (fr) 1989-05-19
FR2623348B1 true FR2623348B1 (fr) 1995-03-10

Family

ID=17731776

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8814960A Expired - Lifetime FR2623348B1 (fr) 1987-11-17 1988-11-17 Dispositif a ondes elastiques de surface

Country Status (3)

Country Link
US (1) US4973875A (fr)
JP (1) JP2606708B2 (fr)
FR (1) FR2623348B1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0374921A (ja) * 1989-08-16 1991-03-29 Clarion Co Ltd 弾性表面波装置
JPH0685597A (ja) * 1992-09-02 1994-03-25 Mitsubishi Electric Corp 弾性表面波装置
US5289073A (en) * 1992-11-09 1994-02-22 The United States Of America As Represented By The Secretary Of The Army Unidirectional surface acoustic wave transducer
US5831492A (en) * 1995-09-15 1998-11-03 Sawtek Inc. Weighted tapered spudt saw device
US5818310A (en) * 1996-08-27 1998-10-06 Sawtek Inc. Series-block and line-width weighted saw filter device
US6791236B1 (en) * 2000-10-11 2004-09-14 Yuri Abramov Method utilizing the saw velocity dispersion effect for weighting by shaping the electrode fingers of a saw interdigital transducer and apparatus produced thereby
US6856214B2 (en) * 2002-12-10 2005-02-15 Nortel Networks Limited Surface wave devices with low passband ripple
DE10314153A1 (de) * 2003-03-28 2004-10-07 Epcos Ag Oberflächenwellen-Anordnung zur breitbandigen Signalübertragung
JP4184220B2 (ja) * 2003-10-01 2008-11-19 富士通メディアデバイス株式会社 弾性表面波デバイス
JP2005150918A (ja) * 2003-11-12 2005-06-09 Murata Mfg Co Ltd 弾性表面波フィルタ
DE102005009359B4 (de) * 2005-03-01 2014-12-11 Epcos Ag Bandpassfilter
JP5042763B2 (ja) * 2007-09-28 2012-10-03 日本電波工業株式会社 弾性波フィルタ
JP2011211414A (ja) * 2010-03-29 2011-10-20 Nippon Dempa Kogyo Co Ltd 弾性波フィルタ
JP2014192866A (ja) * 2013-03-28 2014-10-06 Nippon Dempa Kogyo Co Ltd 弾性波フィルタ
US10432167B2 (en) * 2016-04-01 2019-10-01 Intel Corporation Piezoelectric package-integrated crystal devices
US11206867B2 (en) * 2020-02-26 2021-12-28 China Tobacco Yunnan Industrial Co., Ltd Variable-frequency surface acoustic wave electronic cigarette

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697899A (en) * 1971-04-05 1972-10-10 Zenith Radio Corp Acoustic surface wave transmission device
US3818379A (en) * 1972-12-04 1974-06-18 Hughes Aircraft Co Acoustic surface wave device
US3845420A (en) * 1973-03-02 1974-10-29 Raytheon Co Surface acoustic wave phase control device
US3883831A (en) * 1973-09-27 1975-05-13 Massachusetts Inst Technology Surface wave devices
AT341578B (de) * 1975-12-19 1978-02-10 Hans Dr Kuzmany Elektroakustischer wandler zur elektrischen anregung einer akustischen oberflachenwelle bzw. zur akustischen anregung einer elektrischen welle durch den piezoelektrischen effekt
JPS54844A (en) * 1977-06-03 1979-01-06 Matsushita Electric Ind Co Ltd Elastic surface wave filter
SU726648A1 (ru) * 1977-07-22 1980-04-05 Ордена Трудового Красного Знамени Институт Радиотехники И Электроники Ан Ссср Устройство на поверхностных акустических волнах
SU726646A1 (ru) * 1977-12-26 1980-04-05 Ленинградский Институт Авиационного Приборостроения Фазовращатель на акустических поверхностных волнах
NL8502807A (nl) * 1984-10-15 1986-05-01 Clarion Co Ltd Akoestische oppervlakte-golfinrichting.
US4600905A (en) * 1985-09-03 1986-07-15 The United States Of America As Represented By The Secretary Of The Army Flat passband etched groove saw filter
US4870312A (en) * 1987-02-19 1989-09-26 Hazeltine Corporation Surface wave device having anti-reflective shield

Also Published As

Publication number Publication date
US4973875A (en) 1990-11-27
JPH01130613A (ja) 1989-05-23
JP2606708B2 (ja) 1997-05-07
FR2623348A1 (fr) 1989-05-19

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