FR2146804A5 - - Google Patents

Info

Publication number
FR2146804A5
FR2146804A5 FR7225844A FR7225844A FR2146804A5 FR 2146804 A5 FR2146804 A5 FR 2146804A5 FR 7225844 A FR7225844 A FR 7225844A FR 7225844 A FR7225844 A FR 7225844A FR 2146804 A5 FR2146804 A5 FR 2146804A5
Authority
FR
France
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
FR7225844A
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
Application granted granted Critical
Publication of FR2146804A5 publication Critical patent/FR2146804A5/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
    • 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
FR7225844A 1971-07-21 1972-07-18 Expired FR2146804A5 (fr)

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
FR2146804A5 true FR2146804A5 (fr) 1973-03-02

Family

ID=10362265

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7225844A Expired FR2146804A5 (fr) 1971-07-21 1972-07-18

Country Status (10)

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

Families Citing this family (16)

* 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 (fr) * 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
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
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
US6060815A (en) * 1997-08-18 2000-05-09 X-Cyte, Inc. Frequency mixing passive transponder
US5986382A (en) 1997-08-18 1999-11-16 X-Cyte, Inc. Surface acoustic wave transponder configuration
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
CA965491A (en) 1975-04-01
US3801935A (en) 1974-04-02
AU4457372A (en) 1974-01-17
IT961468B (it) 1973-12-10
NL7209835A (fr) 1973-01-23
ES404981A1 (es) 1975-07-01
AU458649B2 (en) 1975-03-06
JPS5420108B1 (fr) 1979-07-20
GB1362238A (en) 1974-07-30
DE2234564A1 (de) 1973-02-01

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Legal Events

Date Code Title Description
ST Notification of lapse