IT1016742B - Dispositivo ad onde acustiche di superficie - Google Patents

Dispositivo ad onde acustiche di superficie

Info

Publication number
IT1016742B
IT1016742B IT69428/74A IT6942874A IT1016742B IT 1016742 B IT1016742 B IT 1016742B IT 69428/74 A IT69428/74 A IT 69428/74A IT 6942874 A IT6942874 A IT 6942874A IT 1016742 B IT1016742 B IT 1016742B
Authority
IT
Italy
Prior art keywords
acoustic wave
surface acoustic
wave device
wave
acoustic
Prior art date
Application number
IT69428/74A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1016742B publication Critical patent/IT1016742B/it

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
    • H03H9/14517—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)
IT69428/74A 1973-08-03 1974-07-31 Dispositivo ad onde acustiche di superficie IT1016742B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3694073A GB1396856A (en) 1973-08-03 1973-08-03 Acoustic surface-wave devices

Publications (1)

Publication Number Publication Date
IT1016742B true IT1016742B (it) 1977-06-20

Family

ID=10392430

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69428/74A IT1016742B (it) 1973-08-03 1974-07-31 Dispositivo ad onde acustiche di superficie

Country Status (10)

Country Link
US (1) US3968460A (it)
JP (1) JPS5615612B2 (it)
BE (1) BE818398A (it)
CA (1) CA1020269A (it)
DE (1) DE2435835C2 (it)
ES (1) ES428850A1 (it)
FR (1) FR2239815B1 (it)
GB (1) GB1396856A (it)
IT (1) IT1016742B (it)
SE (1) SE392376B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2319245A1 (fr) * 1975-07-24 1977-02-18 Thomson Csf Transducteur perfectionne pour filtre a ondes de surface a fonction de transfert asymetrique et filtre comportant un tel transducteur
DE3021013A1 (de) * 1980-06-03 1981-12-17 Franz Prof. Dr.-Ing. Wien Seifert Interdigitalwandler fuer oberflaechenwellen-(saw)einrichtung und volumenwellen-(ssb)einrichtung
DE3209948A1 (de) * 1982-03-18 1983-09-22 Siemens AG, 1000 Berlin und 8000 München Verbesserung an einem pulskompressionsfilter nach art einer dispersiven verzoegerungsleitung
DE3121516A1 (de) * 1981-05-29 1983-01-05 Siemens AG, 1000 Berlin und 8000 München Pulskompressionsfilter nach art einer dispersiven verzoegerungsleitung
DE4019004A1 (de) * 1990-06-13 1991-12-19 Siemens Ag Interdigitalwandler mit fingerbreiten-wichtung fuer oberflaechenwellenanordnungen
US8952863B2 (en) * 2010-12-17 2015-02-10 Nokia Corporation Strain-tunable antenna and associated methods

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3699364A (en) * 1971-06-04 1972-10-17 Hughes Aircraft Co Acoustic surface wave device having improved transducer structure

Also Published As

Publication number Publication date
FR2239815A1 (it) 1975-02-28
FR2239815B1 (it) 1978-04-28
US3968460A (en) 1976-07-06
DE2435835C2 (de) 1984-02-16
JPS5615612B2 (it) 1981-04-11
SE392376B (sv) 1977-03-21
GB1396856A (en) 1975-06-11
DE2435835A1 (de) 1975-03-13
JPS5046061A (it) 1975-04-24
SE7409840L (it) 1975-02-04
ES428850A1 (es) 1976-09-01
AU7196574A (en) 1976-02-05
CA1020269A (en) 1977-11-01
BE818398A (fr) 1975-02-03

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