FI922772A - Ytvaogsreflektorfilter. - Google Patents

Ytvaogsreflektorfilter. Download PDF

Info

Publication number
FI922772A
FI922772A FI922772A FI922772A FI922772A FI 922772 A FI922772 A FI 922772A FI 922772 A FI922772 A FI 922772A FI 922772 A FI922772 A FI 922772A FI 922772 A FI922772 A FI 922772A
Authority
FI
Finland
Prior art keywords
pct
date jun
sec
input
output
Prior art date
Application number
FI922772A
Other languages
English (en)
Other versions
FI922772A0 (fi
Inventor
Werner Ruile
Giuliano Visintini
Juergen Machui
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 FI922772A publication Critical patent/FI922772A/fi
Publication of FI922772A0 publication Critical patent/FI922772A0/fi

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
    • H03H9/02637—Details concerning reflective or coupling arrays
    • 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
    • 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
    • H03H9/6433—Coupled resonator filters
    • H03H9/6436—Coupled resonator filters having one acoustic track only
    • 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
    • H03H9/6489—Compensation of undesirable effects

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Luminescent Compositions (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Aerials With Secondary Devices (AREA)
FI922772A 1989-12-20 1992-06-16 Ytvaogsreflektorfilter. FI922772A0 (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3942148A DE3942148A1 (de) 1989-12-20 1989-12-20 Oberflaechenwellen-reflektorfilter
PCT/EP1990/002192 WO1991009464A1 (de) 1989-12-20 1990-12-14 Oberflächenwellen-reflektorfilter

Publications (2)

Publication Number Publication Date
FI922772A true FI922772A (fi) 1992-06-16
FI922772A0 FI922772A0 (fi) 1992-06-16

Family

ID=6395931

Family Applications (1)

Application Number Title Priority Date Filing Date
FI922772A FI922772A0 (fi) 1989-12-20 1992-06-16 Ytvaogsreflektorfilter.

Country Status (9)

Country Link
US (1) US5351022A (fi)
EP (1) EP0506777B1 (fi)
JP (1) JPH04506443A (fi)
AT (1) ATE120905T1 (fi)
CA (1) CA2070675A1 (fi)
DE (2) DE3942148A1 (fi)
ES (1) ES2070486T3 (fi)
FI (1) FI922772A0 (fi)
WO (1) WO1991009464A1 (fi)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4212517C2 (de) * 1992-04-14 1995-02-23 Siemens Ag Oberflächenwellenanordnung mit mindestens zwei in Richtung der Hauptwellenausbreitung benachbarten Oberflächenwellen-Strukturen
DE4213800A1 (de) * 1992-04-27 1993-10-28 Siemens Ag Gewichteter Reflektor für eine Oberflächenwellenanordnung
JPH05315886A (ja) * 1992-05-14 1993-11-26 Matsushita Electric Ind Co Ltd 弾性表面波フィルタ
JP3254779B2 (ja) * 1993-01-05 2002-02-12 株式会社村田製作所 多電極形弾性表面波装置
JP3298251B2 (ja) * 1993-08-24 2002-07-02 株式会社村田製作所 弾性表面波装置
US5434466A (en) * 1994-05-31 1995-07-18 Motorola, Inc. Acoustic wave filter with reduced bulk-wave scattering loss and method
US5600287A (en) * 1994-02-03 1997-02-04 Motorola, Inc. Acoustic wave filter with reduced bulk-wave scattering loss, ladder filter incorporating same and method
US5835990A (en) * 1995-06-16 1998-11-10 Northern Telecom Limited Longitudinally coupled double mode surface wave resonators
DE19548042C2 (de) * 1995-12-21 1999-11-04 Siemens Matsushita Components Mit akustischen Oberflächenwellen arbeitendes Filter -OFW-Filter-
US5760664A (en) * 1996-11-26 1998-06-02 Motorola Inc. Acoustic wave filter with double reflective gratings and method for producing the same
JP3154402B2 (ja) * 1997-11-12 2001-04-09 日本電気株式会社 Ｓａｗフィルタ
DE59913935D1 (de) 1998-03-23 2006-11-30 Epcos Ag Akustisches oberflächenwellenfilter
US6847272B2 (en) * 2003-02-28 2005-01-25 Northrop Grumman Corporation Weighted SAW reflector using distributed acoustic reflective dots
DE102006039515B4 (de) * 2006-08-23 2012-02-16 Epcos Ag Drehbewegungssensor mit turmartigen Schwingstrukturen
DE102006048879B4 (de) * 2006-10-16 2018-02-01 Snaptrack, Inc. Elektroakustisches Bauelement

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1057802A (en) * 1962-08-13 1967-02-08 Yawata Iron & Steel Company Ultrasonic internal flaw detecting apparatus for hot metal
GB1473661A (en) * 1974-07-12 1977-05-18 Microwave & Electronic Syst Surface acoustic wave device
GB1513466A (en) * 1975-09-19 1978-06-07 Mullard Ltd Acoustic surface wave devices
GB1554366A (en) * 1977-02-04 1979-10-17 Philips Electronic Associated Acoustic surface wave devices
US4254387A (en) * 1977-10-06 1981-03-03 U.S. Philips Corporation Acoustic wave devices
GB2030407B (en) * 1978-09-22 1982-12-08 Philips Electronic Associated Acustic wave resonators and filters
US4263571A (en) * 1978-11-15 1981-04-21 Hitachi, Ltd. Surface acoustic wave filter
JPS5610725A (en) * 1979-07-09 1981-02-03 Murata Mfg Co Ltd Elastic surface wave device
DE3209962A1 (de) * 1982-03-18 1983-09-29 Siemens AG, 1000 Berlin und 8000 München Mit akustischen wellen arbeitendes elektronisches bauelement
GB2117992B (en) * 1982-03-24 1985-09-18 Philips Electronic Associated Parallel-series acoustic wave device arrangement
DE3230038A1 (de) * 1982-08-12 1984-02-16 Siemens AG, 1000 Berlin und 8000 München Mit reflektierten akustischen wellen arbeitendes elektronisches bauelement
DE3404618A1 (de) * 1984-02-09 1985-08-14 Siemens AG, 1000 Berlin und 8000 München Mit reflektierten akustischen wellen arbeitendes elektronik-bauelement
DE3517254A1 (de) * 1985-05-13 1986-11-13 Siemens AG, 1000 Berlin und 8000 München Mit akustischen wellen arbeitendes elektrisches filter
DE3529916A1 (de) * 1985-08-21 1987-02-26 Siemens Ag Dispersiver interdigital-wandler fuer mit akustischen wellen arbeitenden anordnungen
GB8615522D0 (en) * 1986-06-25 1986-07-30 Gen Electric Co Plc Surface acoustic wave filters
JPH01157109A (ja) * 1987-12-14 1989-06-20 Hitachi Ltd 弾性表面波共振器
JP3126026B2 (ja) * 1989-12-28 2001-01-22 キンセキ株式会社 弾性表面波共振子フィルタ

Also Published As

Publication number Publication date
EP0506777B1 (de) 1995-04-05
CA2070675A1 (en) 1991-06-21
ES2070486T3 (es) 1995-06-01
JPH04506443A (ja) 1992-11-05
EP0506777A1 (de) 1992-10-07
ATE120905T1 (de) 1995-04-15
DE3942148A1 (de) 1991-06-27
WO1991009464A1 (de) 1991-06-27
DE59008866D1 (de) 1995-05-11
FI922772A0 (fi) 1992-06-16
US5351022A (en) 1994-09-27

Similar Documents

Publication Publication Date Title
FI922772A0 (fi) Ytvaogsreflektorfilter.
DE69213748D1 (de) System zur tonaufnahme sowie gerät zur tonaufnahme und -wiedergabe
BR9916202A (pt) Filtro digital programável de baixa potência
MX9503581A (es) Aparato de interconexion optica que tiene una banda de paso amplia y substancialmente plana.
ATE312370T1 (de) Lichtimpulskontrolle mittels programmierbarer akustooptischer vorrichtung
DE3277097D1 (en) Splice-free fiber optic recirculating memory
ATE68713T1 (de) Uebertragungssystem.
ATE120904T1 (de) Oberflächenwellen-reflektorfilter.
DE69601724T2 (de) Grusskarte oder dergleichen mit lautsprecher
TW233392B (en) A variable propagation delay digital signal inverter
BR9811615A (pt) Processos e aparelhos para reduzir espalhamento em um sinal digital de entrada que inclui uma primeira seqaência de valores de amostra, e, para processar informação de sinal acústico
FI922183A (fi) Reflektorfilter foer ytvaogor.
EP0772291A3 (en) Method and system for increasing the power efficiency of a balanced amplifier/antenna combination
DE69531597D1 (de) Testmethode und flipflop mit mutter- und tochtereinheit umfassender elektronischer schaltkreis
NO902397L (no) Hydroakustisk sonarsystem.
ATE188827T1 (de) Videosignalverarbeitung
SE8405878L (sv) Anordning for eliminering av brum i en signal
SE9503545D0 (sv) Förafrande vid telefonsystem
SU582592A1 (ru) Приемник тональных сигналов
TW362308B (en) Signal processing method
ES2015483A6 (es) Transductor interdigital de ondas superficiales y filtro de ondas superficiales con caracteristica de transmision simetrica o asimetrica predeterminable entre entrada y salida.
JPS5755660A (en) Voice and data separating circuit
SU836777A1 (ru) Акустоэлектронное устройство на поверхностныхАКуСТичЕСКиХ ВОлНАХ
ATE65137T1 (de) Optimaler parametrischer signalprozessor.
SE9403875D0 (sv) Drivsteg

Legal Events

Date Code Title Description
FD Application lapsed