SE429488B - Resonatoranordning for kopplade ljudvagor - Google Patents

Resonatoranordning for kopplade ljudvagor

Info

Publication number
SE429488B
SE429488B SE7901465A SE7901465A SE429488B SE 429488 B SE429488 B SE 429488B SE 7901465 A SE7901465 A SE 7901465A SE 7901465 A SE7901465 A SE 7901465A SE 429488 B SE429488 B SE 429488B
Authority
SE
Sweden
Prior art keywords
cavity
frequency
capacitance
transducers
pole
Prior art date
Application number
SE7901465A
Other languages
English (en)
Swedish (sv)
Other versions
SE7901465L (sv
Inventor
M Redwood
F W Smith
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 SE7901465L publication Critical patent/SE7901465L/
Publication of SE429488B publication Critical patent/SE429488B/sv

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
    • H03H9/6433—Coupled resonator filters

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
SE7901465A 1978-02-23 1979-02-20 Resonatoranordning for kopplade ljudvagor SE429488B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB726378 1978-02-23

Publications (2)

Publication Number Publication Date
SE7901465L SE7901465L (sv) 1979-08-24
SE429488B true SE429488B (sv) 1983-09-05

Family

ID=9829752

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7901465A SE429488B (sv) 1978-02-23 1979-02-20 Resonatoranordning for kopplade ljudvagor

Country Status (8)

Country Link
US (1) US4247836A (fr)
JP (1) JPS5948565B2 (fr)
BE (1) BE874349A (fr)
CA (1) CA1132211A (fr)
DE (1) DE2906893A1 (fr)
FR (1) FR2418574B1 (fr)
GB (1) GB2018079B (fr)
SE (1) SE429488B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2117992B (en) * 1982-03-24 1985-09-18 Philips Electronic Associated Parallel-series acoustic wave device arrangement
US4609891A (en) * 1985-10-16 1986-09-02 Sperry Corporation Staggered SAW resonator for differential detection
DE3853513T2 (de) * 1987-11-20 1995-11-23 Oki Electric Ind Co Ltd Akustische Oberflächenwellenanordnung.
JPH03293808A (ja) * 1990-04-11 1991-12-25 Fujitsu Ltd 弾性表面波素子の製造方法
US5296824A (en) * 1991-12-02 1994-03-22 Motorola, Inc. Low loss wide bandwidth parallel channel acoustic filter
DE4214122C2 (de) * 1992-04-29 2001-02-22 Siemens Ag Zweispur-Oberflächenwellenanordnung mit verbesserter Selektionseigenschaft
JPH05315886A (ja) * 1992-05-14 1993-11-26 Matsushita Electric Ind Co Ltd 弾性表面波フィルタ
USD434512S (en) 1997-11-17 2000-11-28 John Manufacturing Limited Rechargeable emergency light
JP3963862B2 (ja) 2003-05-20 2007-08-22 富士通メディアデバイス株式会社 弾性表面波フィルタ及びそれを有する分波器
WO2009025057A1 (fr) * 2007-08-23 2009-02-26 Fujitsu Limited Filtre de branchement, module comprenant le filtre de branchement, dispositif de communication
JP5183459B2 (ja) * 2008-12-26 2013-04-17 太陽誘電株式会社 分波器、分波器用基板および電子装置
WO2010073377A1 (fr) * 2008-12-26 2010-07-01 太陽誘電株式会社 Démultiplexeur et dispositif électronique
WO2015191719A1 (fr) * 2014-06-10 2015-12-17 Massachusetts Institute Of Technology Résonateurs mems couplés non libérés et filtres de transmission
CN111010142B (zh) * 2019-12-17 2023-03-10 成都频岢微电子有限公司 一种环形无反射栅低插损声表滤波器

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3810257A (en) * 1973-02-01 1974-05-07 Texas Instruments Inc Acoustic surface wave transducer configuration for reducing triple transit signals
GB1451326A (en) * 1973-02-16 1976-09-29 Nat Res Dev Acoustic wave devices
DE2312057A1 (de) * 1973-03-10 1974-09-12 Philips Patentverwaltung Akustisches oberflaechenwellenkammsperrfilter
US3886504A (en) * 1974-05-20 1975-05-27 Texas Instruments Inc Acoustic surface wave resonator devices
FR2274171A1 (fr) * 1974-06-10 1976-01-02 Philips Nv Filtre mettant a profit des ondes de surface acoustiques

Also Published As

Publication number Publication date
FR2418574A1 (fr) 1979-09-21
DE2906893A1 (de) 1979-08-30
CA1132211A (fr) 1982-09-21
GB2018079B (en) 1982-08-18
JPS54123892A (en) 1979-09-26
SE7901465L (sv) 1979-08-24
US4247836A (en) 1981-01-27
FR2418574B1 (fr) 1987-11-13
JPS5948565B2 (ja) 1984-11-27
GB2018079A (en) 1979-10-10
BE874349A (fr) 1979-08-21

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