DE69734034D1 - Akustisches Wellenfilter - Google Patents

Akustisches Wellenfilter

Info

Publication number
DE69734034D1
DE69734034D1 DE69734034T DE69734034T DE69734034D1 DE 69734034 D1 DE69734034 D1 DE 69734034D1 DE 69734034 T DE69734034 T DE 69734034T DE 69734034 T DE69734034 T DE 69734034T DE 69734034 D1 DE69734034 D1 DE 69734034D1
Authority
DE
Germany
Prior art keywords
acoustic wave
wave filter
filter
acoustic
wave
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.)
Expired - Lifetime
Application number
DE69734034T
Other languages
English (en)
Other versions
DE69734034T2 (de
Inventor
Victor Plessky
Serguei Kondratiev
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.)
Nokia Oyj
Original Assignee
Nokia Oyj
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 Nokia Oyj filed Critical Nokia Oyj
Publication of DE69734034D1 publication Critical patent/DE69734034D1/de
Application granted granted Critical
Publication of DE69734034T2 publication Critical patent/DE69734034T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03H9/6433—Coupled resonator filters
    • H03H9/6483—Ladder SAW filters
    • 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)
DE69734034T 1996-03-29 1997-03-14 Akustisches Wellenfilter Expired - Lifetime DE69734034T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9606595 1996-03-29
GB9606595A GB2312109B (en) 1996-03-29 1996-03-29 Acoustic wave filter

Publications (2)

Publication Number Publication Date
DE69734034D1 true DE69734034D1 (de) 2005-09-29
DE69734034T2 DE69734034T2 (de) 2006-01-12

Family

ID=10791231

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69734034T Expired - Lifetime DE69734034T2 (de) 1996-03-29 1997-03-14 Akustisches Wellenfilter

Country Status (6)

Country Link
US (1) US5945893A (de)
EP (1) EP0798853B1 (de)
JP (1) JPH1075154A (de)
KR (1) KR970068146A (de)
DE (1) DE69734034T2 (de)
GB (1) GB2312109B (de)

Families Citing this family (64)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5955933A (en) * 1994-11-10 1999-09-21 Fujitsu Limited Saw resonator with improved connections
US6107899A (en) * 1996-10-21 2000-08-22 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter with grounds not connected in the package or on the piezoelectric substrate
JPH10200370A (ja) * 1997-01-10 1998-07-31 Murata Mfg Co Ltd 弾性表面波フィルタ
FR2774826B1 (fr) * 1998-02-06 2000-05-05 Thomson Csf Filtre a resonateurs a ondes acoustiques de surface
JP3206548B2 (ja) * 1998-05-14 2001-09-10 株式会社村田製作所 表面波フィルタ、共用器、通信機装置
JP3289674B2 (ja) * 1998-05-21 2002-06-10 株式会社村田製作所 表面波フィルタ装置、共用器、通信機装置
DE69938989D1 (de) * 1998-05-29 2008-08-14 Fujitsu Ltd Akustisches Oberflächenwellenfilter mit verbesserter Unterdrückung ausserhalb eines Durchlassbereichs
WO1999065141A1 (fr) * 1998-06-12 1999-12-16 Matsushita Electric Industrial Co., Ltd. Filtre a ondes de surface, et dispositif partage pour une antenne
JP2000209061A (ja) * 1999-01-12 2000-07-28 Toshiba Corp 弾性表面波素子および弾性表面波装置
DE19932649A1 (de) * 1999-07-13 2001-02-08 Epcos Ag SAW-Filter des Reaktanzfiltertyps mit verbesserter Sperrbereichsunterdrückung und Verfahren zur Optimierung der Sperrbereichsunterdrückung
US6323744B1 (en) * 2000-02-04 2001-11-27 Agere Systems Guardian Corp. Grounding of TFR ladder filters
JP2005033246A (ja) * 2003-07-07 2005-02-03 Matsushita Electric Ind Co Ltd Ｓａｗフィルタとそれを用いた電子デバイス
GB0718706D0 (en) 2007-09-25 2007-11-07 Creative Physics Ltd Method and apparatus for reducing laser speckle
US9335604B2 (en) 2013-12-11 2016-05-10 Milan Momcilo Popovich Holographic waveguide display
US11726332B2 (en) 2009-04-27 2023-08-15 Digilens Inc. Diffractive projection apparatus
US11320571B2 (en) 2012-11-16 2022-05-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view with uniform light extraction
US8233204B1 (en) 2009-09-30 2012-07-31 Rockwell Collins, Inc. Optical displays
US10795160B1 (en) 2014-09-25 2020-10-06 Rockwell Collins, Inc. Systems for and methods of using fold gratings for dual axis expansion
US11300795B1 (en) 2009-09-30 2022-04-12 Digilens Inc. Systems for and methods of using fold gratings coordinated with output couplers for dual axis expansion
US8659826B1 (en) 2010-02-04 2014-02-25 Rockwell Collins, Inc. Worn display system and method without requiring real time tracking for boresight precision
WO2012136970A1 (en) 2011-04-07 2012-10-11 Milan Momcilo Popovich Laser despeckler based on angular diversity
WO2013027004A1 (en) 2011-08-24 2013-02-28 Milan Momcilo Popovich Wearable data display
US10670876B2 (en) 2011-08-24 2020-06-02 Digilens Inc. Waveguide laser illuminator incorporating a despeckler
WO2016020630A2 (en) 2014-08-08 2016-02-11 Milan Momcilo Popovich Waveguide laser illuminator incorporating a despeckler
US8634139B1 (en) 2011-09-30 2014-01-21 Rockwell Collins, Inc. System for and method of catadioptric collimation in a compact head up display (HUD)
US9599813B1 (en) 2011-09-30 2017-03-21 Rockwell Collins, Inc. Waveguide combiner system and method with less susceptibility to glare
US9715067B1 (en) 2011-09-30 2017-07-25 Rockwell Collins, Inc. Ultra-compact HUD utilizing waveguide pupil expander with surface relief gratings in high refractive index materials
US9366864B1 (en) 2011-09-30 2016-06-14 Rockwell Collins, Inc. System for and method of displaying information without need for a combiner alignment detector
WO2013102759A2 (en) 2012-01-06 2013-07-11 Milan Momcilo Popovich Contact image sensor using switchable bragg gratings
US9523852B1 (en) 2012-03-28 2016-12-20 Rockwell Collins, Inc. Micro collimator system and method for a head up display (HUD)
CN106125308B (zh) 2012-04-25 2019-10-25 罗克韦尔柯林斯公司 用于显示图像的装置和方法
US9933684B2 (en) 2012-11-16 2018-04-03 Rockwell Collins, Inc. Transparent waveguide display providing upper and lower fields of view having a specific light output aperture configuration
US9674413B1 (en) 2013-04-17 2017-06-06 Rockwell Collins, Inc. Vision system and method having improved performance and solar mitigation
US9727772B2 (en) 2013-07-31 2017-08-08 Digilens, Inc. Method and apparatus for contact image sensing
US9244281B1 (en) 2013-09-26 2016-01-26 Rockwell Collins, Inc. Display system and method using a detached combiner
US10732407B1 (en) 2014-01-10 2020-08-04 Rockwell Collins, Inc. Near eye head up display system and method with fixed combiner
US9519089B1 (en) 2014-01-30 2016-12-13 Rockwell Collins, Inc. High performance volume phase gratings
US9244280B1 (en) 2014-03-25 2016-01-26 Rockwell Collins, Inc. Near eye display system and method for display enhancement or redundancy
WO2016020632A1 (en) 2014-08-08 2016-02-11 Milan Momcilo Popovich Method for holographic mastering and replication
US10241330B2 (en) 2014-09-19 2019-03-26 Digilens, Inc. Method and apparatus for generating input images for holographic waveguide displays
US10088675B1 (en) 2015-05-18 2018-10-02 Rockwell Collins, Inc. Turning light pipe for a pupil expansion system and method
US9715110B1 (en) 2014-09-25 2017-07-25 Rockwell Collins, Inc. Automotive head up display (HUD)
CN107873086B (zh) 2015-01-12 2020-03-20 迪吉伦斯公司 环境隔离的波导显示器
US9632226B2 (en) 2015-02-12 2017-04-25 Digilens Inc. Waveguide grating device
US10247943B1 (en) 2015-05-18 2019-04-02 Rockwell Collins, Inc. Head up display (HUD) using a light pipe
US10126552B2 (en) 2015-05-18 2018-11-13 Rockwell Collins, Inc. Micro collimator system and method for a head up display (HUD)
US11366316B2 (en) 2015-05-18 2022-06-21 Rockwell Collins, Inc. Head up display (HUD) using a light pipe
US10108010B2 (en) 2015-06-29 2018-10-23 Rockwell Collins, Inc. System for and method of integrating head up displays and head down displays
CN108474945B (zh) 2015-10-05 2021-10-01 迪吉伦斯公司 波导显示器
US10598932B1 (en) 2016-01-06 2020-03-24 Rockwell Collins, Inc. Head up display for integrating views of conformally mapped symbols and a fixed image source
US10859768B2 (en) 2016-03-24 2020-12-08 Digilens Inc. Method and apparatus for providing a polarization selective holographic waveguide device
US10890707B2 (en) 2016-04-11 2021-01-12 Digilens Inc. Holographic waveguide apparatus for structured light projection
US11513350B2 (en) 2016-12-02 2022-11-29 Digilens Inc. Waveguide device with uniform output illumination
US10545346B2 (en) 2017-01-05 2020-01-28 Digilens Inc. Wearable heads up displays
US10295824B2 (en) 2017-01-26 2019-05-21 Rockwell Collins, Inc. Head up display with an angled light pipe
CN116149058A (zh) 2017-10-16 2023-05-23 迪吉伦斯公司 用于倍增像素化显示器的图像分辨率的系统和方法
US10914950B2 (en) 2018-01-08 2021-02-09 Digilens Inc. Waveguide architectures and related methods of manufacturing
US10732569B2 (en) 2018-01-08 2020-08-04 Digilens Inc. Systems and methods for high-throughput recording of holographic gratings in waveguide cells
WO2020023779A1 (en) 2018-07-25 2020-01-30 Digilens Inc. Systems and methods for fabricating a multilayer optical structure
WO2020168348A1 (en) 2019-02-15 2020-08-20 Digilens Inc. Methods and apparatuses for providing a holographic waveguide display using integrated gratings
CN113728258A (zh) 2019-03-12 2021-11-30 迪吉伦斯公司 全息波导背光及相关制造方法
CN114207492A (zh) 2019-06-07 2022-03-18 迪吉伦斯公司 带透射光栅和反射光栅的波导及其生产方法
EP4004646A4 (de) 2019-07-29 2023-09-06 Digilens Inc. Verfahren und vorrichtung zum multiplizieren der bildauflösung und des sichtfeldes einer pixelierten anzeige
KR20220054386A (ko) 2019-08-29 2022-05-02 디지렌즈 인코포레이티드. 진공 브래그 격자 및 이의 제조 방법

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US33957A (en) * 1861-12-17 Improved mode of operating giffard s injector
US4353046A (en) * 1980-11-04 1982-10-05 R F Monolithics, Inc. Surface acoustic wave device with reflectors
JPH01157109A (ja) * 1987-12-14 1989-06-20 Hitachi Ltd 弾性表面波共振器
JPH0817304B2 (ja) * 1988-06-23 1996-02-21 東光株式会社 表面弾性波共振器および多重モードフィルタ
JPH02198211A (ja) * 1989-01-26 1990-08-06 Nippon Mining Co Ltd 表面弾性波共振子
US5223762A (en) * 1990-12-27 1993-06-29 Murata Manufacturing Co., Ltd. Surface acoustic wave filter
JPH0555855A (ja) * 1991-08-28 1993-03-05 Murata Mfg Co Ltd 弾性表面波フイルタ
JP2800905B2 (ja) * 1991-10-28 1998-09-21 富士通株式会社 弾性表面波フィルタ
US5313177A (en) * 1992-04-06 1994-05-17 Motorola, Inc. Method and apparatus for an acoustic wave filter
DE4227362C2 (de) * 1992-08-19 1996-01-25 Dresden Ev Inst Festkoerper Akustisches Oberflächenwellenbauelement
US5374908A (en) * 1992-11-25 1994-12-20 Rf Monolithics, Inc. Surface acoustic wave device for generating an output signal with only a symmetric or only an asymmetric vibration mode acoustic wave
GB2280807B (en) * 1993-08-04 1997-10-22 Advanced Saw Prod Sa Saw filter
DE4431612C2 (de) * 1993-09-06 1998-07-16 Sanyo Electric Co Akustisches Oberflächenwellenfilter
DE69412424T2 (de) * 1993-11-05 1998-12-24 Matsushita Electric Ind Co Ltd Akustisches Oberflächenwellenfilter
JP3424971B2 (ja) * 1994-01-20 2003-07-07 松下電器産業株式会社 弾性表面波フィルタ
US5471178A (en) * 1994-02-03 1995-11-28 Motorola, Inc. Ladder filter and method for producing conjugately matched impedance
US5434466A (en) * 1994-05-31 1995-07-18 Motorola, Inc. Acoustic wave filter with reduced bulk-wave scattering loss and method
JP3237387B2 (ja) * 1994-04-12 2001-12-10 株式会社村田製作所 弾性表面波共振子フィルタ
US5955933A (en) * 1994-11-10 1999-09-21 Fujitsu Limited Saw resonator with improved connections
GB2296614B (en) * 1994-12-23 1999-09-15 Advanced Saw Prod Sa Saw filter
DE19516903C2 (de) * 1995-05-09 1997-03-06 Dresden Ev Inst Festkoerper Resonatorfilter
JP3243976B2 (ja) * 1995-08-14 2002-01-07 株式会社村田製作所 弾性表面波フィルタ
GB2306821B (en) * 1995-11-03 2000-05-31 Advanced Saw Prod Sa Electro-acoustic device

Also Published As

Publication number Publication date
EP0798853B1 (de) 2005-08-24
GB2312109B (en) 2000-08-02
GB9606595D0 (en) 1996-06-05
GB2312109A (en) 1997-10-15
KR970068146A (de) 1997-10-13
JPH1075154A (ja) 1998-03-17
EP0798853A1 (de) 1997-10-01
DE69734034T2 (de) 2006-01-12
US5945893A (en) 1999-08-31

Similar Documents

Publication Publication Date Title
DE69734034D1 (de) Akustisches Wellenfilter
DE69734033D1 (de) Akustisches Wellenfilter
DE69533389D1 (de) Akustisches Oberflächenwellenfilter
DE69840784D1 (de) Akustisches Volumenwellenfilter
DE69506138D1 (de) Akustisches Oberflächenwellenfilter
DE69835987D1 (de) Akustische Oberflächenwellenfilter
DE69619741T2 (de) Akustisches Oberflächenwellenfilter
DE69735746D1 (de) Akustische Oberflächenwellenanordnung
DE69513904T2 (de) Akustische Oberflächenwellenanordnung
KR970703063A (ko) 탄성표면파필터
DE69620524D1 (de) Oberflächenwellenfilter
DE69636897D1 (de) Akustischer Oberflächenwellenfilter
DE69716238T2 (de) Akustische oberflächenwellenanordnung
DE69934765D1 (de) Akustisches Oberflächenwellenfilter
DE69713370T2 (de) Akustische oberflächenwellenfilter
DE69522066T2 (de) Akustische Oberflächenwellenanordnung
DE59913935D1 (de) Akustisches oberflächenwellenfilter
DE69506137D1 (de) Akustisches Oberflächenwellenfilter
DE69625734D1 (de) Akustischer Oberflächenwellenfilter
DE69723957D1 (de) Akustische oberflächenwellenanordnung
DE69522065T2 (de) Akustische Oberflächenwellenanordnung
DE19983034T1 (de) Akustisches Oberflächenwellenfilter
DE69635332D1 (de) Akustisches oberflächenwellenfilter
DE69733237D1 (de) Akustische Oberflächenwellenanordnung
DE69821690D1 (de) Mehrstufiges akustisches Oberflächenwellenfilter

Legal Events

Date Code Title Description
8364 No opposition during term of opposition