BE783831A - Elektromechanisch filter - Google Patents

Elektromechanisch filter

Info

Publication number
BE783831A
BE783831A BE783831A BE783831A BE783831A BE 783831 A BE783831 A BE 783831A BE 783831 A BE783831 A BE 783831A BE 783831 A BE783831 A BE 783831A BE 783831 A BE783831 A BE 783831A
Authority
BE
Belgium
Prior art keywords
elektromechanisch
filter
elektromechanisch filter
Prior art date
Application number
BE783831A
Other languages
English (en)
French (fr)
Inventor
Ltd. Mullard
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of BE783831A publication Critical patent/BE783831A/xx

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
    • H03H9/125—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
    • 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
    • H03H9/14517—Means for weighting
    • 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
    • H03H9/14517—Means for weighting
    • H03H9/1452—Means for weighting by finger overlap length, apodisation

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
BE783831A 1971-05-24 1972-05-23 Elektromechanisch filter BE783831A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1664171 1971-05-24

Publications (1)

Publication Number Publication Date
BE783831A true BE783831A (fr) 1972-11-23

Family

ID=10080983

Family Applications (1)

Application Number Title Priority Date Filing Date
BE783831A BE783831A (fr) 1971-05-24 1972-05-23 Elektromechanisch filter

Country Status (12)

Country Link
US (1) US3768032A (xx)
JP (1) JPS5320181B1 (xx)
AU (1) AU461183B2 (xx)
BE (1) BE783831A (xx)
CA (1) CA965186A (xx)
DE (1) DE2224497C3 (xx)
ES (1) ES403041A1 (xx)
FR (1) FR2138957B1 (xx)
GB (1) GB1355418A (xx)
IT (1) IT958930B (xx)
NL (1) NL7206879A (xx)
SE (1) SE380412B (xx)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3906432A (en) * 1972-07-20 1975-09-16 Ibm Grating guides for acoustic surface waves
JPS5418910B2 (xx) * 1973-08-31 1979-07-11
GB1514923A (en) * 1974-07-02 1978-06-21 Plessey Co Ltd Acoustic surface wave filters
DE2618210C3 (de) * 1976-04-26 1980-03-13 Siemens Ag, 1000 Berlin Und 8000 Muenchen Wandlerelektroden für Filter oder Verzögerungsleitungen nach dem Oberflächenwellenprinzip
JPS55157480U (xx) * 1979-04-27 1980-11-12
JPS56132807A (en) * 1980-03-24 1981-10-17 Hitachi Ltd Surface wave circuit equipment
JPS5745376U (xx) * 1980-08-27 1982-03-12
US4448805A (en) * 1980-11-17 1984-05-15 National Research Development Corporation Methods of producing devices comprising metallized regions on dielectric substrates
JPS596612A (ja) * 1982-07-05 1984-01-13 Hitachi Ltd 弾性表面波装置
GB2157522B (en) * 1984-04-09 1987-08-19 Philips Electronic Associated Electrical filter comprising an acoustic surface wave device, and method of manufacturing such a filter
CN100539228C (zh) * 2005-12-06 2009-09-09 精工爱普生株式会社 压电层压体、表面声波元件、压电谐振器及压电传动装置
JP4735840B2 (ja) 2005-12-06 2011-07-27 セイコーエプソン株式会社 圧電体積層体、表面弾性波素子、薄膜圧電共振子および圧電アクチュエータ
JPWO2007108269A1 (ja) * 2006-03-17 2009-08-06 株式会社村田製作所 弾性波共振子
EP2091146B1 (en) * 2006-11-08 2015-07-22 Skyworks Panasonic Filter Solutions Japan Co., Ltd. Surface acoustic wave resonator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289114A (en) * 1963-12-24 1966-11-29 Bell Telephone Labor Inc Tapped ultrasonic delay line and uses therefor
US3696312A (en) * 1970-06-30 1972-10-03 Ibm Cyclotron resonance devices controllable by electric fields

Also Published As

Publication number Publication date
FR2138957A1 (xx) 1973-01-05
AU4254472A (en) 1973-11-29
DE2224497A1 (de) 1972-11-30
JPS5320181B1 (xx) 1978-06-24
ES403041A1 (es) 1975-04-16
SE380412B (sv) 1975-11-03
DE2224497B2 (de) 1979-11-29
IT958930B (it) 1973-10-30
US3768032A (en) 1973-10-23
FR2138957B1 (xx) 1973-07-13
DE2224497C3 (de) 1980-09-25
NL7206879A (xx) 1972-11-28
AU461183B2 (en) 1975-05-15
GB1355418A (en) 1974-06-05
CA965186A (en) 1975-03-25

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