BE827295A - Filtre d'ondes de surface - Google Patents

Filtre d'ondes de surface

Info

Publication number
BE827295A
BE827295A BE2054231A BE2054231A BE827295A BE 827295 A BE827295 A BE 827295A BE 2054231 A BE2054231 A BE 2054231A BE 2054231 A BE2054231 A BE 2054231A BE 827295 A BE827295 A BE 827295A
Authority
BE
Belgium
Prior art keywords
wave filter
surface wave
filter
wave
Prior art date
Application number
BE2054231A
Other languages
English (en)
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 filed Critical
Publication of BE827295A publication Critical patent/BE827295A/fr

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
    • H03H9/0023—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output
    • H03H9/0028—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices
    • H03H9/0033—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having one acoustic track only
    • H03H9/0038—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns, or networks having balanced input and output using surface acoustic wave devices having one acoustic track only the balanced terminals being on the same side of the track
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
BE2054231A 1974-04-01 1975-03-28 Filtre d'ondes de surface BE827295A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US457060A US3868608A (en) 1974-04-01 1974-04-01 Surface wave filter

Publications (1)

Publication Number Publication Date
BE827295A true BE827295A (fr) 1975-07-16

Family

ID=23815285

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2054231A BE827295A (fr) 1974-04-01 1975-03-28 Filtre d'ondes de surface

Country Status (4)

Country Link
US (1) US3868608A (fr)
BE (1) BE827295A (fr)
CA (1) CA1041618A (fr)
DE (1) DE2513672A1 (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4006290A (en) * 1974-08-12 1977-02-01 Gte Sylvania Incorporated Surface wave frequency selective device
FR2310029A1 (fr) * 1975-04-30 1976-11-26 Thomson Csf Dispositif a ondes elastiques de surface permettant l'elimination des echos a transits multiples
US3986126A (en) * 1975-05-15 1976-10-12 International Business Machines Corporation Serial pulse-code-modulated retiming system
US4107626A (en) * 1976-12-20 1978-08-15 Gould Inc. Digital output force sensor using surface acoustic waves
US4804251A (en) * 1977-03-10 1989-02-14 Imo Delaval Inc. Electrode structures and electrooptic light gate systems
US4533217A (en) * 1979-04-30 1985-08-06 Transamerica Delaval Inc. Light gate assemblies, elements and manufacturing methods
US4328497A (en) * 1980-08-11 1982-05-04 Westinghouse Electric Corp. Method and system for jamming analysis and transmission selection
US4365520A (en) * 1981-01-07 1982-12-28 Gould Inc. Strain gage transducers
JPS5843609A (ja) * 1981-09-09 1983-03-14 Toshiba Corp 弾性表面波装置
DE3517254A1 (de) * 1985-05-13 1986-11-13 Siemens AG, 1000 Berlin und 8000 München Mit akustischen wellen arbeitendes elektrisches filter
DE3709692A1 (de) * 1987-03-25 1988-10-06 Siemens Ag Oberflaechenwellen-filteranordnung mit reduziertem kapazitivem und insbesondere induktivem uebersprechen
DE4019004A1 (de) * 1990-06-13 1991-12-19 Siemens Ag Interdigitalwandler mit fingerbreiten-wichtung fuer oberflaechenwellenanordnungen
US5309126A (en) * 1991-11-18 1994-05-03 Motorola, Inc. Spatially varying multiple electrode acoustic wave filter and method therefor
US5585770A (en) * 1993-06-30 1996-12-17 Motorola, Inc. Three terminal surface acoustic wave (SAW) device
DE19610806A1 (de) * 1995-03-20 1996-10-10 Hitachi Media Electron Kk Oberflächenwellen-Filter und Antennenweiche
US5835990A (en) * 1995-06-16 1998-11-10 Northern Telecom Limited Longitudinally coupled double mode surface wave resonators
GB2306821B (en) 1995-11-03 2000-05-31 Advanced Saw Prod Sa Electro-acoustic device
JP2003060484A (ja) * 2001-08-14 2003-02-28 Murata Mfg Co Ltd 弾性表面波装置
EP1481474A1 (fr) * 2002-03-06 2004-12-01 Matsushita Electric Industrial Co., Ltd. Filtre a ondes de surface, circuit de type equilibre et appareil de communication
RU2195071C1 (ru) * 2002-04-12 2002-12-20 Зао Нпп "Элко" Режекторный фильтр на поверхностных акустических волнах
RU2242839C2 (ru) * 2002-05-15 2004-12-20 Ооо "Бутис - М" Устройство на поверхностных акустических волнах
DE10305379A1 (de) * 2003-02-10 2004-08-19 Epcos Ag Frontendschaltung
DE10317969B4 (de) * 2003-04-17 2005-06-16 Epcos Ag Duplexer mit erweiterter Funktionalität
US8222721B2 (en) * 2003-09-15 2012-07-17 Silicon Laboratories Inc. Integrated circuit suitable for use in radio receivers
US7446629B2 (en) * 2004-08-04 2008-11-04 Matsushita Electric Industrial Co., Ltd. Antenna duplexer, and RF module and communication apparatus using the same

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665211A (en) * 1970-01-11 1972-05-23 North American Rockwell Surface acoustic wave computer logic elements
US3750027A (en) * 1970-08-12 1973-07-31 Texas Instruments Inc Surface wave frequency discriminators

Also Published As

Publication number Publication date
US3868608A (en) 1975-02-25
DE2513672A1 (de) 1975-10-02
CA1041618A (fr) 1978-10-31

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