FR2296305A1 - Filtre a ondes acoustiques de surface - Google Patents

Filtre a ondes acoustiques de surface

Info

Publication number
FR2296305A1
FR2296305A1 FR7539767A FR7539767A FR2296305A1 FR 2296305 A1 FR2296305 A1 FR 2296305A1 FR 7539767 A FR7539767 A FR 7539767A FR 7539767 A FR7539767 A FR 7539767A FR 2296305 A1 FR2296305 A1 FR 2296305A1
Authority
FR
France
Prior art keywords
acoustic wave
surface acoustic
wave filter
filter
wave
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.)
Granted
Application number
FR7539767A
Other languages
English (en)
Other versions
FR2296305B1 (fr
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.)
Sony Corp
Original Assignee
Sony Corp
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 claimed from JP386775A external-priority patent/JPS5175361A/ja
Priority claimed from JP9064175A external-priority patent/JPS5214333A/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2296305A1 publication Critical patent/FR2296305A1/fr
Application granted granted Critical
Publication of FR2296305B1 publication Critical patent/FR2296305B1/fr
Granted 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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6489—Compensation of undesirable effects
    • H03H9/6496—Reducing ripple in transfer characteristic
    • 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
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • 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
    • H03H9/14564—Shifted fingers transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7539767A 1974-12-25 1975-12-24 Filtre a ondes acoustiques de surface Granted FR2296305A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP386775A JPS5175361A (ja) 1974-12-25 1974-12-25 Danseihyomenhafuiruta
JP9064175A JPS5214333A (en) 1975-07-24 1975-07-24 Surface wave element

Publications (2)

Publication Number Publication Date
FR2296305A1 true FR2296305A1 (fr) 1976-07-23
FR2296305B1 FR2296305B1 (fr) 1979-09-07

Family

ID=26337515

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7539767A Granted FR2296305A1 (fr) 1974-12-25 1975-12-24 Filtre a ondes acoustiques de surface

Country Status (6)

Country Link
US (1) US4028649A (fr)
CA (1) CA1047615A (fr)
DE (1) DE2558145A1 (fr)
FR (1) FR2296305A1 (fr)
GB (1) GB1513580A (fr)
NL (1) NL7514959A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401551A1 (fr) * 1977-06-03 1979-03-23 Matsushita Electric Ind Co Ltd Filtre a ondes acoustiques de surface
EP0088493A2 (fr) * 1982-03-01 1983-09-14 Northern Telecom Limited Dispositifs à ondes acoustiques de surface
EP0219182A2 (fr) * 1985-10-16 1987-04-22 Unisys Corporation Résonateur échelonné à ondes acoustiques de surface pour détection différentielle

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405874A (en) * 1982-03-01 1983-09-20 Northern Telecom Limited Surface acoustic wave (saw) devices having series-connected inter-digital transducers
US4625208A (en) * 1983-06-30 1986-11-25 X-Cyte Inc. Surface acoustic wave passive transponder having acoustic wave reflectors
US4748364A (en) * 1984-10-15 1988-05-31 Clarion Co., Ltd. Surface acoustic wave device
JPS6194411A (ja) * 1984-10-15 1986-05-13 Clarion Co Ltd 帯域可変弾性表面波フイルタ
EP0373404B1 (fr) * 1988-12-15 1997-01-29 Canon Kabushiki Kaisha Convolutionneur d'ondes acoustiques de surface avec plusieurs chemins de guides d'ondes pour générer des signaux de convolution ayant des phases mutuellement differentes
US5185548A (en) * 1990-10-11 1993-02-09 Canon Kabushiki Kaisha Surface acoustic wave device with reflected wave at side edges on waveguide suppressed and communication system using the same
US5296824A (en) * 1991-12-02 1994-03-22 Motorola, Inc. Low loss wide bandwidth parallel channel acoustic filter
JPH0750548A (ja) * 1993-05-31 1995-02-21 Canon Inc 弾性表面波素子
GB2289181B (en) * 1994-04-25 1998-08-12 Advanced Saw Prod Sa Saw filter
DE19638398C2 (de) * 1996-09-19 1999-12-30 Siemens Matsushita Components Oberflächenwellen-Bauelement
US6107910A (en) * 1996-11-29 2000-08-22 X-Cyte, Inc. Dual mode transmitter/receiver and decoder for RF transponder tags
US5986382A (en) * 1997-08-18 1999-11-16 X-Cyte, Inc. Surface acoustic wave transponder configuration
US6060815A (en) * 1997-08-18 2000-05-09 X-Cyte, Inc. Frequency mixing passive transponder
US6114971A (en) * 1997-08-18 2000-09-05 X-Cyte, Inc. Frequency hopping spread spectrum passive acoustic wave identification device
US6208062B1 (en) * 1997-08-18 2001-03-27 X-Cyte, Inc. Surface acoustic wave transponder configuration
US5973438A (en) * 1998-02-13 1999-10-26 Toda; Kohji Ultrasonic switching device
RU98123756A (ru) * 1998-12-29 2000-10-20 Моторола Инк. (US) Трехканальный фильтр на поверхностных акустических волнах
JP2001196898A (ja) * 2000-01-05 2001-07-19 Fujitsu Ltd 弾性表面波フィルタ
JP3863712B2 (ja) * 2000-09-06 2006-12-27 株式会社日立製作所 弾性表面波共振器
JP3934544B2 (ja) * 2002-04-11 2007-06-20 富士通株式会社 弾性波観測装置
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
JP4085895B2 (ja) * 2003-06-19 2008-05-14 セイコーエプソン株式会社 弾性表面波フィルタおよび弾性表面波共振器

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727718A (en) * 1971-11-24 1973-04-17 Us Navy Surface wave ambiguity analyzer
US3931597A (en) * 1974-02-04 1976-01-06 The Magnavox Company Apparatus and method for phase-encoded surface wave devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401551A1 (fr) * 1977-06-03 1979-03-23 Matsushita Electric Ind Co Ltd Filtre a ondes acoustiques de surface
EP0088493A2 (fr) * 1982-03-01 1983-09-14 Northern Telecom Limited Dispositifs à ondes acoustiques de surface
EP0088493A3 (en) * 1982-03-01 1985-09-11 Northern Telecom Limited Surface acoustic wave (saw) devices
EP0219182A2 (fr) * 1985-10-16 1987-04-22 Unisys Corporation Résonateur échelonné à ondes acoustiques de surface pour détection différentielle
EP0219182A3 (fr) * 1985-10-16 1988-02-24 Unisys Corporation Résonateur échelonné à ondes acoustiques de surface pour détection différentielle

Also Published As

Publication number Publication date
NL7514959A (nl) 1976-06-29
FR2296305B1 (fr) 1979-09-07
GB1513580A (en) 1978-06-07
US4028649A (en) 1977-06-07
CA1047615A (fr) 1979-01-30
DE2558145A1 (de) 1976-07-01

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Legal Events

Date Code Title Description
ST Notification of lapse