IT961468B - Filtro ad onda di superficie - Google Patents

Filtro ad onda di superficie

Info

Publication number
IT961468B
IT961468B IT51615/72A IT5161572A IT961468B IT 961468 B IT961468 B IT 961468B IT 51615/72 A IT51615/72 A IT 51615/72A IT 5161572 A IT5161572 A IT 5161572A IT 961468 B IT961468 B IT 961468B
Authority
IT
Italy
Prior art keywords
wave filter
surface wave
filter
wave
Prior art date
Application number
IT51615/72A
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 IT961468B publication Critical patent/IT961468B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
IT51615/72A 1971-07-21 1972-07-18 Filtro ad onda di superficie IT961468B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3417071A GB1362238A (en) 1971-07-21 1971-07-21 Acoustic surface wave devices

Publications (1)

Publication Number Publication Date
IT961468B true IT961468B (it) 1973-12-10

Family

ID=10362265

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51615/72A IT961468B (it) 1971-07-21 1972-07-18 Filtro ad onda di superficie

Country Status (10)

Country Link
US (1) US3801935A (it)
JP (1) JPS5420108B1 (it)
AU (1) AU458649B2 (it)
CA (1) CA965491A (it)
DE (1) DE2234564A1 (it)
ES (1) ES404981A1 (it)
FR (1) FR2146804A5 (it)
GB (1) GB1362238A (it)
IT (1) IT961468B (it)
NL (1) NL7209835A (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1395294A (en) * 1973-06-05 1975-05-21 Mullard Ltd Acoustic surface wave device
JPS5434519B2 (it) * 1973-08-31 1979-10-27
US4166258A (en) * 1974-08-29 1979-08-28 International Business Machines Corporation Thin-film integrated circuit with tank circuit characteristics and applications to thin-film filters and oscillators
US4223284A (en) 1977-11-07 1980-09-16 Murata Manufacturing Co., Ltd. Acoustic surface wave device
US4384264A (en) * 1979-04-24 1983-05-17 Murata Manufacturing Company Ltd. Surface acoustic wave device
US4625184A (en) * 1982-07-02 1986-11-25 Clarion Co., Ltd. Surface acoustic wave device with impedance matching network formed thereon
US4620191A (en) * 1983-06-30 1986-10-28 Halvor Skeie Surface acoustic wave passive transponder having parallel acoustic wave paths
US5363074A (en) * 1992-10-19 1994-11-08 Motorola, Inc. Saw structure having serially coupled transducers with overlapping fingers
US6801100B2 (en) * 1996-05-23 2004-10-05 Matsushita Electric Industrial Co., Ltd. Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same
US6107910A (en) 1996-11-29 2000-08-22 X-Cyte, Inc. Dual mode transmitter/receiver and decoder for RF transponder tags
US6208062B1 (en) 1997-08-18 2001-03-27 X-Cyte, Inc. Surface acoustic wave transponder configuration
US6114971A (en) * 1997-08-18 2000-09-05 X-Cyte, Inc. Frequency hopping spread spectrum passive acoustic wave identification device
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
JP2000244275A (ja) * 1999-02-19 2000-09-08 Murata Mfg Co Ltd Ｓａｗ共振子フィルタ
JP3402311B2 (ja) * 2000-05-19 2003-05-06 株式会社村田製作所 弾性表面波装置
JP5898908B2 (ja) * 2011-10-11 2016-04-06 日本電波工業株式会社 弾性波フィルタ

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600710A (en) * 1968-08-12 1971-08-17 Zenith Radio Corp Acoustic surface wave filter
US3675054A (en) * 1970-12-02 1972-07-04 Texas Instruments Inc Series connection of interdigitated surface wave transducers

Also Published As

Publication number Publication date
AU4457372A (en) 1974-01-17
CA965491A (en) 1975-04-01
NL7209835A (it) 1973-01-23
US3801935A (en) 1974-04-02
AU458649B2 (en) 1975-03-06
FR2146804A5 (it) 1973-03-02
GB1362238A (en) 1974-07-30
ES404981A1 (es) 1975-07-01
DE2234564A1 (de) 1973-02-01
JPS5420108B1 (it) 1979-07-20

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