FR2313811A1 - Filtre moyenne frequence de television fonctionnant sur le principe des ondes de surface - Google Patents

Filtre moyenne frequence de television fonctionnant sur le principe des ondes de surface

Info

Publication number
FR2313811A1
FR2313811A1 FR7616368A FR7616368A FR2313811A1 FR 2313811 A1 FR2313811 A1 FR 2313811A1 FR 7616368 A FR7616368 A FR 7616368A FR 7616368 A FR7616368 A FR 7616368A FR 2313811 A1 FR2313811 A1 FR 2313811A1
Authority
FR
France
Prior art keywords
principle
medium frequency
surface waves
filter operating
frequency television
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.)
Granted
Application number
FR7616368A
Other languages
English (en)
Other versions
FR2313811B3 (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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of FR2313811A1 publication Critical patent/FR2313811A1/fr
Application granted granted Critical
Publication of FR2313811B3 publication Critical patent/FR2313811B3/fr
Granted 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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6426—Combinations of the characteristics of different 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
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02874—Means for compensation or elimination of undesirable effects of direct coupling between input and output 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
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02881—Means for compensation or elimination of undesirable effects of diffraction of wave beam
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7616368A 1975-06-03 1976-05-31 Filtre moyenne frequence de television fonctionnant sur le principe des ondes de surface Granted FR2313811A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2524649A DE2524649C3 (de) 1975-06-03 1975-06-03 Fernseh-ZF-Filter nach dem Oberflächenwellenprinzip

Publications (2)

Publication Number Publication Date
FR2313811A1 true FR2313811A1 (fr) 1976-12-31
FR2313811B3 FR2313811B3 (fr) 1979-02-16

Family

ID=5948153

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7616368A Granted FR2313811A1 (fr) 1975-06-03 1976-05-31 Filtre moyenne frequence de television fonctionnant sur le principe des ondes de surface

Country Status (7)

Country Link
US (1) US4066985A (fr)
JP (1) JPS51148342A (fr)
BE (1) BE842554A (fr)
BR (1) BR7603394A (fr)
DE (1) DE2524649C3 (fr)
FR (1) FR2313811A1 (fr)
IT (1) IT1123055B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023109A1 (fr) * 1979-07-20 1981-01-28 Fujitsu Limited Dispositif de filtre à ondes acoustiques de surface
EP0201766A2 (fr) * 1985-05-13 1986-11-20 Siemens Aktiengesellschaft Filtre électrique fonctionnant avec des ondes acoustiques
EP0665645A1 (fr) * 1994-01-31 1995-08-02 SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG Filtre résonateur, à couplage transversal de modes, à ondes acoustiques de surface

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5931890B2 (ja) * 1976-12-08 1984-08-04 株式会社日立製作所 弾性表面波フイルタ
SU726648A1 (ru) * 1977-07-22 1980-04-05 Ордена Трудового Красного Знамени Институт Радиотехники И Электроники Ан Ссср Устройство на поверхностных акустических волнах
SU805918A1 (ru) * 1979-09-28 1982-03-30 Ордена Трудового Красного Знамени Институт Радиотехники И Электроники Ан Ссср Преобразователь поверхностных акустических волн
JPS5843609A (ja) * 1981-09-09 1983-03-14 Toshiba Corp 弾性表面波装置
US4673901A (en) * 1984-10-26 1987-06-16 Siemens Aktiengesellschaft Electrical filter operating with acoustic waves
CA1273701A (fr) * 1986-03-12 1990-09-04 Mark S. Suthers Dispositif a ondes acoustiques de surface a transducteur interdigite apodise
JPS6484909A (en) * 1987-09-25 1989-03-30 Nec Corp Surface acoustic wave device
US5023605A (en) * 1988-11-25 1991-06-11 Gte Laboratories, Inc. Patterned transducer apparatus for correcting spurious signals in said devices
TW256966B (fr) * 1994-03-04 1995-09-11 Murata Manufacturing Co
DE19925800C1 (de) * 1999-06-03 2000-12-21 Dresden Ev Inst Festkoerper Wandler für akustische Oberflächenwellen
DE19943072B4 (de) * 1999-06-03 2004-05-13 Leibniz-Institut für Festkörper- und Werkstoffforschung e.V. Akustisches Oberflächenwellenfilter
EP1198881B1 (fr) 1999-06-03 2004-07-28 Tele Filter Zweigniederlassung der Dover Germany GmbH Filtre a ondes acoustiques de surface
DE102010008774B4 (de) * 2010-02-22 2015-07-23 Epcos Ag Mikroakustisches Filter mit kompensiertem Übersprechen und Verfahren zur Kompensation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3582540A (en) * 1969-04-17 1971-06-01 Zenith Radio Corp Signal translating apparatus using surface wave acoustic device
US3858118A (en) * 1973-07-17 1974-12-31 Westinghouse Electric Corp Acoustic surface wave television tuner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023109A1 (fr) * 1979-07-20 1981-01-28 Fujitsu Limited Dispositif de filtre à ondes acoustiques de surface
EP0201766A2 (fr) * 1985-05-13 1986-11-20 Siemens Aktiengesellschaft Filtre électrique fonctionnant avec des ondes acoustiques
EP0201766A3 (en) * 1985-05-13 1988-09-21 Siemens Aktiengesellschaft Berlin Und Munchen Electrical filter operating with acoustical waves
EP0665645A1 (fr) * 1994-01-31 1995-08-02 SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG Filtre résonateur, à couplage transversal de modes, à ondes acoustiques de surface

Also Published As

Publication number Publication date
FR2313811B3 (fr) 1979-02-16
DE2524649C3 (de) 1980-11-06
JPS51148342A (en) 1976-12-20
DE2524649B2 (de) 1980-01-17
BR7603394A (pt) 1977-02-15
BE842554A (fr) 1976-10-01
DE2524649A1 (de) 1976-12-09
IT1123055B (it) 1986-04-30
US4066985A (en) 1978-01-03

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Legal Events

Date Code Title Description
ST Notification of lapse