FR2379941B1 - Resonateur d'ondes de surface acoustiques - Google Patents

Resonateur d'ondes de surface acoustiques

Info

Publication number
FR2379941B1
FR2379941B1 FR7802740A FR7802740A FR2379941B1 FR 2379941 B1 FR2379941 B1 FR 2379941B1 FR 7802740 A FR7802740 A FR 7802740A FR 7802740 A FR7802740 A FR 7802740A FR 2379941 B1 FR2379941 B1 FR 2379941B1
Authority
FR
France
Prior art keywords
surface wave
wave resonator
acoustic surface
acoustic
resonator
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
Application number
FR7802740A
Other languages
English (en)
Other versions
FR2379941A1 (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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2379941A1 publication Critical patent/FR2379941A1/fr
Application granted granted Critical
Publication of FR2379941B1 publication Critical patent/FR2379941B1/fr
Expired 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
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • H03H9/0285—Means for compensation or elimination of undesirable effects of reflections of triple transit echo
    • 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
    • H03H9/02795—Multi-strip couplers as track changers
    • 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
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series 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
    • H03H9/46—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
    • H03H9/6443—Coupled resonator filters having two acoustic tracks being acoustically coupled
    • H03H9/645—Coupled resonator filters having two acoustic tracks being acoustically coupled by grating reflectors overlapping both tracks

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR7802740A 1977-02-04 1978-02-01 Resonateur d'ondes de surface acoustiques Expired FR2379941B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4643/77A GB1554366A (en) 1977-02-04 1977-02-04 Acoustic surface wave devices

Publications (2)

Publication Number Publication Date
FR2379941A1 FR2379941A1 (fr) 1978-09-01
FR2379941B1 true FR2379941B1 (fr) 1985-10-31

Family

ID=9781075

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7802740A Expired FR2379941B1 (fr) 1977-02-04 1978-02-01 Resonateur d'ondes de surface acoustiques

Country Status (8)

Country Link
US (1) US4178571A (fr)
JP (1) JPS5397391A (fr)
BE (1) BE863590A (fr)
CA (1) CA1119709A (fr)
DE (1) DE2802795A1 (fr)
FR (1) FR2379941B1 (fr)
GB (1) GB1554366A (fr)
SE (1) SE426199B (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5561126A (en) * 1978-11-01 1980-05-08 Hitachi Ltd Elastic surface wave device
US4387355A (en) * 1980-06-13 1983-06-07 Nippon Telegraph & Telephone Public Corporation Surface acoustic wave resonator
US4331943A (en) * 1980-12-22 1982-05-25 Hewlett-Packard Company Acoustic wave devices having transverse mode distortions eliminated structurally
JPS57119509A (en) * 1981-01-19 1982-07-26 Toshiba Corp Surface acoustic wave resonator
GB2117992B (en) * 1982-03-24 1985-09-18 Philips Electronic Associated Parallel-series acoustic wave device arrangement
US4609891A (en) * 1985-10-16 1986-09-02 Sperry Corporation Staggered SAW resonator for differential detection
ATE85870T1 (de) * 1988-11-11 1993-03-15 Siemens Ag Oberflaechenwellenfilter mit aenderbarem durchlassbereich.
DE3942148A1 (de) * 1989-12-20 1991-06-27 Siemens Ag Oberflaechenwellen-reflektorfilter
DE3942140A1 (de) * 1989-12-20 1991-06-27 Siemens Ag Oberflaechenwellen-reflektorfilter
FR2658013B1 (fr) * 1990-02-02 1992-04-17 Thomson Csf Filtre a ondes acoustiques de surface.
DE69319977T3 (de) * 1992-08-24 2006-06-14 Nihon Dempa Kogyo Co Akustisches Oberflächenwellenresonatorfilter
US5374908A (en) * 1992-11-25 1994-12-20 Rf Monolithics, Inc. Surface acoustic wave device for generating an output signal with only a symmetric or only an asymmetric vibration mode acoustic wave
JP3001350B2 (ja) * 1993-05-19 2000-01-24 日本電気株式会社 弾性表面波フィルタ
US5710529A (en) * 1993-10-15 1998-01-20 Ngk Insulators, Ltd. Surface acoustic wave filer device having a cascade filter structure and a piezoelectric substrate having mirror-polished surfaces
US5426339A (en) * 1994-04-01 1995-06-20 Rf Monolithics, Inc. Surface acoustic wave devices with mode changing characteristics
JP3606944B2 (ja) * 1994-04-25 2005-01-05 ノキア コーポレイション Ｓａｗフィルタ
GB2289180B (en) * 1994-04-25 1998-08-12 Advanced Saw Prod Sa Saw filter
US5545940A (en) * 1994-11-07 1996-08-13 Rf Monolithics, Inc. Multitrack transversely folded surface acoustic wave structure
FR2740908B1 (fr) * 1995-11-07 1997-11-28 Thomson Csf Transducteur a ondes acoustiques de surface attaque en differentiel
US6104260A (en) * 1997-12-22 2000-08-15 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter with first and second filter tracks and balanced or unbalanced terminals
US6836197B2 (en) * 2003-02-28 2004-12-28 Northrop Grumman Corporation Dual track SAW reflector filter using weighted reflective gratings
WO2015191719A1 (fr) * 2014-06-10 2015-12-17 Massachusetts Institute Of Technology Résonateurs mems couplés non libérés et filtres de transmission

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1351286A (en) * 1971-05-18 1974-04-24 Mullard Ltd Electromechanical if filter for television receivers
GB1357193A (en) * 1971-07-22 1974-06-19 Mullard Ltd Acoustic surface wave devices
US3810257A (en) * 1973-02-01 1974-05-07 Texas Instruments Inc Acoustic surface wave transducer configuration for reducing triple transit signals
GB1413916A (en) * 1973-09-17 1975-11-12 Mullard Ltd Acoustic surface-wave devices
US3886504A (en) * 1974-05-20 1975-05-27 Texas Instruments Inc Acoustic surface wave resonator devices
GB1529941A (en) * 1975-01-15 1978-10-25 Mullard Ltd Electrical filters including coupled resonators
US4081769A (en) * 1976-09-13 1978-03-28 Texas Instruments Incorporated Acoustic surface wave resonator with suppressed direct coupled response

Also Published As

Publication number Publication date
SE426199B (sv) 1982-12-13
CA1119709A (fr) 1982-03-09
SE7801170L (sv) 1978-08-05
JPS5397391A (en) 1978-08-25
FR2379941A1 (fr) 1978-09-01
GB1554366A (en) 1979-10-17
US4178571A (en) 1979-12-11
DE2802795A1 (de) 1978-08-10
BE863590A (fr) 1978-08-02

Similar Documents

Publication Publication Date Title
FR2379941B1 (fr) Resonateur d'ondes de surface acoustiques
BE878906A (fr) Resonateur pour ondes acoustiques
NL187091C (nl) Akoestische oppervlaktegolfresonator.
FR2405589B1 (fr) Resonateur pour ondes acoustiques
DE3068877D1 (en) Surface acoustic wave resonator device
BE860227A (fr) Dispositif engendrant des ondes de surface acoustiques
DK448583A (da) Akustisk overfladeboelgefoeler
GB2009932B (en) Pseudo continuous wave acoustic instrument
BR7906039A (pt) Transdutor de deslocamento
FR2466139B1 (fr) Dispositif reflecteur d'ondes acoustiques superficielles
FR2342537A1 (fr) Dispositif d'onde acoustique de surface
FR2466899B1 (fr) Oscillateur piezoelectrique
FR2463473B1 (fr) Dispositif d'onde acoustique de surface
BE879590A (fr) Resonateur piezoelectrique
BE863315A (fr) Transducteur
BR8005981A (pt) Transdutor piezoeletrico
GB2003353B (en) Acoustic surface wave filter
NL7810674A (nl) Akoestische oppervlakgolfinrichting.
FR2340013A1 (fr) Transducteur acoustique electromagnetique
FR2533090B1 (fr) Resonateur a ondes de surface
DD138491A3 (de) Akustisches oberflaechenwellenbauelement
IT1109754B (it) Unita' filtro ad onde acustiche di superficie
DD127872A1 (de) Akustisches oberflaechenwellenbauelement
PL201553A1 (pl) Uklad analogowego przetwornika czestotliwosci
DE3038738A1 (de) Filter based on the use of surface acoustic waves

Legal Events

Date Code Title Description
ST Notification of lapse