SE439865B - Resonatoranordning for akustiska vagor - Google Patents

Resonatoranordning for akustiska vagor

Info

Publication number
SE439865B
SE439865B SE7810348A SE7810348A SE439865B SE 439865 B SE439865 B SE 439865B SE 7810348 A SE7810348 A SE 7810348A SE 7810348 A SE7810348 A SE 7810348A SE 439865 B SE439865 B SE 439865B
Authority
SE
Sweden
Prior art keywords
wave
acoustic
cavity
pair
electrodes
Prior art date
Application number
SE7810348A
Other languages
English (en)
Swedish (sv)
Other versions
SE7810348L (sv
Inventor
M Redwood
R Stevens
P D White
R F Mitchell
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
Publication of SE7810348L publication Critical patent/SE7810348L/xx
Publication of SE439865B publication Critical patent/SE439865B/sv

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46Filters
    • H03H9/64Filters using surface acoustic waves
    • H03H9/6423Means for obtaining a particular transfer characteristic
    • H03H9/6433Coupled resonator filters
    • H03H9/6436Coupled resonator filters having one acoustic track only
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02Details
    • H03H9/02535Details of surface acoustic wave devices
    • H03H9/02818Means for compensation or elimination of undesirable effects
    • H03H9/02842Means for compensation or elimination of undesirable effects of reflections
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03HIMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/25Constructional features of resonators using surface acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
SE7810348A 1977-10-06 1978-10-03 Resonatoranordning for akustiska vagor SE439865B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4165477 1977-10-06

Publications (2)

Publication Number Publication Date
SE7810348L SE7810348L (sv) 1979-04-07
SE439865B true SE439865B (sv) 1985-07-01

Family

ID=10420684

Family Applications (2)

Application Number Title Priority Date Filing Date
SE7810348A SE439865B (sv) 1977-10-06 1978-10-03 Resonatoranordning for akustiska vagor
SE8304537A SE453447B (sv) 1977-10-06 1983-08-22 Resonatoranordning for akustiska vagor

Family Applications After (1)

Application Number Title Priority Date Filing Date
SE8304537A SE453447B (sv) 1977-10-06 1983-08-22 Resonatoranordning for akustiska vagor

Country Status (9)

Country Link
US (1) US4254387A (fr)
JP (1) JPS5937606B2 (fr)
AU (1) AU517561B2 (fr)
BE (1) BE871010A (fr)
CA (1) CA1126829A (fr)
DE (1) DE2843231A1 (fr)
FR (1) FR2405589B1 (fr)
GB (1) GB2009550B (fr)
SE (2) SE439865B (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5773514A (en) * 1980-10-25 1982-05-08 Fujitsu Ltd Surface acoustic wave filter
JPS58154917A (ja) * 1982-03-10 1983-09-14 Hitachi Ltd 弾性表面波バンドパスフイルタ
GB2117992B (en) * 1982-03-24 1985-09-18 Philips Electronic Associated Parallel-series acoustic wave device arrangement
JPH0714133B2 (ja) * 1985-04-03 1995-02-15 東洋通信機株式会社 Idt励振型2ポート共振器
JPS61230419A (ja) * 1985-04-03 1986-10-14 Toyo Commun Equip Co Ltd 2ポ−トidt励振型共振器及び共振器フイルタ
US4616197A (en) * 1985-12-05 1986-10-07 R. F. Monolithics, Inc. Resonator
JPS62284509A (ja) * 1986-06-02 1987-12-10 Murata Mfg Co Ltd 弾性表面波共振子
JPS632414A (ja) * 1986-06-21 1988-01-07 Alps Electric Co Ltd 弾性表面波共振子
JPH01122780A (ja) * 1987-11-06 1989-05-16 Hitachi Ltd 車両の操舵輪操作角度表示装置
DE3832944A1 (de) * 1988-09-28 1990-04-05 Siemens Ag Oberflaechenwellen-interdigitalwandler und oberflaechenwellen-filter mit symmetrischer oder vorgebbar unsymmetrischer uebertragungscharakteristik zwischen eingang und ausgang
DE3832943A1 (de) * 1988-09-28 1990-03-29 Siemens Ag Oberflaechenwellenfilter
DE3833101A1 (de) * 1988-09-29 1990-04-05 Siemens Ag Wandler mit weglasswichtung fuer oberflaechenwellenfilter
DE3942148A1 (de) * 1989-12-20 1991-06-27 Siemens Ag Oberflaechenwellen-reflektorfilter
DE3942140A1 (de) * 1989-12-20 1991-06-27 Siemens Ag Oberflaechenwellen-reflektorfilter
JP3077052B2 (ja) * 1995-12-27 2000-08-14 株式会社村田製作所 弾性表面波共振子フィルタ装置
DE19638634C2 (de) * 1996-09-20 2001-03-01 Siemens Ag Mit akustischen Oberflächenwellen arbeitende Sensoranordnung
US5952765A (en) * 1996-11-26 1999-09-14 Trw Inc. Reduced coupling saw filter
DE19938748B4 (de) * 1999-08-16 2007-02-01 Epcos Ag Dualmode-Oberflächenwellen-Filter mit verbesserter Symmetrie und erhöhter Sperrdämpfung
US20040103614A1 (en) * 2002-12-03 2004-06-03 Hanks Jeffrey Alan Composite for storm protection
RU2633658C2 (ru) * 2016-03-09 2017-10-16 Акционерное общество "Научно-производственное предприятие "Радар ммс" Резонатор на поверхностных акустических волнах

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886504A (en) * 1974-05-20 1975-05-27 Texas Instruments Inc Acoustic surface wave resonator devices
US3961293A (en) * 1975-02-03 1976-06-01 Texas Instruments Incorporated Multi-resonant surface wave resonator
GB1513466A (en) * 1975-09-19 1978-06-07 Mullard Ltd Acoustic surface wave devices

Also Published As

Publication number Publication date
AU517561B2 (en) 1981-08-06
SE8304537L (sv) 1983-08-22
SE453447B (sv) 1988-02-01
SE7810348L (sv) 1979-04-07
AU4041578A (en) 1980-04-17
GB2009550B (en) 1982-05-06
DE2843231A1 (de) 1979-04-12
US4254387A (en) 1981-03-03
FR2405589A1 (fr) 1979-05-04
BE871010A (fr) 1979-04-04
SE8304537D0 (sv) 1983-08-22
JPS5937606B2 (ja) 1984-09-11
JPS5460842A (en) 1979-05-16
FR2405589B1 (fr) 1985-09-27
GB2009550A (en) 1979-06-13
CA1126829A (fr) 1982-06-29

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