DE69332837D1 - Akustische Oberflächenwellenanordnung - Google Patents
Akustische OberflächenwellenanordnungInfo
- Publication number
- DE69332837D1 DE69332837D1 DE69332837T DE69332837T DE69332837D1 DE 69332837 D1 DE69332837 D1 DE 69332837D1 DE 69332837 T DE69332837 T DE 69332837T DE 69332837 T DE69332837 T DE 69332837T DE 69332837 D1 DE69332837 D1 DE 69332837D1
- Authority
- DE
- Germany
- Prior art keywords
- acoustic wave
- surface acoustic
- wave arrangement
- arrangement
- 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 - Fee Related
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
- H03H9/643—Means for obtaining a particular transfer characteristic the transfer characteristic being determined by reflective or coupling array characteristics
-
- 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
- H03H9/02685—Grating lines having particular arrangements
- H03H9/02771—Reflector banks
-
- 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
- H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger 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
- H03H9/02—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
- H03H9/14564—Shifted fingers transducers
- H03H9/14567—Stepped-fan shaped 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
- H03H9/02—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
- H03H9/1457—Transducers having different finger widths
-
- 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
- H03H9/6426—Combinations of the characteristics of different transducers
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4234535A JPH0685597A (ja) | 1992-09-02 | 1992-09-02 | 弾性表面波装置 |
JP23453592 | 1992-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69332837D1 true DE69332837D1 (de) | 2003-05-08 |
DE69332837T2 DE69332837T2 (de) | 2004-02-05 |
Family
ID=16972552
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69321799T Expired - Fee Related DE69321799T2 (de) | 1992-09-02 | 1993-08-30 | Akustische Oberflächenwellenanordnung |
DE69332837T Expired - Fee Related DE69332837T2 (de) | 1992-09-02 | 1993-08-30 | Akustische Oberflächenwellenanordnung |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69321799T Expired - Fee Related DE69321799T2 (de) | 1992-09-02 | 1993-08-30 | Akustische Oberflächenwellenanordnung |
Country Status (4)
Country | Link |
---|---|
US (5) | US5396199A (de) |
EP (2) | EP0585863B1 (de) |
JP (1) | JPH0685597A (de) |
DE (2) | DE69321799T2 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0685597A (ja) * | 1992-09-02 | 1994-03-25 | Mitsubishi Electric Corp | 弾性表面波装置 |
JPH08265087A (ja) * | 1995-03-22 | 1996-10-11 | Mitsubishi Electric Corp | 弾性表面波フィルタ |
DK0758818T3 (da) * | 1995-08-15 | 2000-07-24 | Cts Corp | Overfladeskimmende massebølgesubstat og anordning indeholdende samme |
JP3106924B2 (ja) * | 1995-08-31 | 2000-11-06 | 株式会社村田製作所 | 表面波共振子 |
JPH09167936A (ja) | 1995-10-13 | 1997-06-24 | Fujitsu Ltd | 弾性表面波装置 |
US6745627B1 (en) | 1996-05-21 | 2004-06-08 | Honeywell International Inc. | Electrostatic drive for accelerometer |
US5948981A (en) * | 1996-05-21 | 1999-09-07 | Alliedsignal Inc. | Vibrating beam accelerometer |
US6003370A (en) * | 1996-05-30 | 1999-12-21 | Minolta Co., Ltd. | Elastic surface wave gyroscope |
US6144288A (en) * | 1997-03-28 | 2000-11-07 | Eaton Corporation | Remote wireless switch sensing circuit using RF transceiver in combination with a SAW chirp processor |
US5948982A (en) * | 1998-02-23 | 1999-09-07 | Alliedsignal Inc. | Vibrating beam accelerometers and methods of forming vibrating beam accelerometers |
US6528286B1 (en) | 1998-05-29 | 2003-03-04 | Genentech, Inc. | Mammalian cell culture process for producing glycoproteins |
JP2000114918A (ja) | 1998-10-05 | 2000-04-21 | Mitsubishi Electric Corp | 表面弾性波装置及びその製造方法 |
US6650207B1 (en) * | 2000-04-24 | 2003-11-18 | Mitsubishi Denki Kabushiki Kaisha | Longitudinally coupled surface acoustic wave filter with linearly weighted reflectors |
US6380828B1 (en) * | 2000-07-24 | 2002-04-30 | Nortel Networks Limited | Surface wave devices with static electric field |
US6791236B1 (en) * | 2000-10-11 | 2004-09-14 | Yuri Abramov | Method utilizing the saw velocity dispersion effect for weighting by shaping the electrode fingers of a saw interdigital transducer and apparatus produced thereby |
JP3764731B2 (ja) * | 2002-10-18 | 2006-04-12 | 富士通メディアデバイス株式会社 | 多重モード弾性表面波フィルタ及び分波器 |
US9429463B2 (en) | 2013-03-04 | 2016-08-30 | International Road Dynamics, Inc. | System and method for measuring moving vehicle information using electrical time domain reflectometry |
US9077312B1 (en) * | 2014-07-25 | 2015-07-07 | Resonant Inc. | High rejection surface acoustic wave filter |
US9331669B2 (en) * | 2014-07-25 | 2016-05-03 | Resonant Inc. | High rejection surface acoustic wave duplexer |
CN113810017A (zh) * | 2015-12-24 | 2021-12-17 | 株式会社村田制作所 | 弹性波装置 |
CN109462384B (zh) * | 2018-12-28 | 2024-07-19 | 河北时硕微芯科技有限公司 | 一种声表滤波器及制作方法 |
IT202100006932A1 (it) * | 2021-03-23 | 2022-09-23 | Univ Degli Studi Di Firenze | Trasduttore ad ultrasuoni interdigitato |
Family Cites Families (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1328343A (en) * | 1969-09-17 | 1973-08-30 | Mullard Ltd | Electro mechanical filters |
US3818379A (en) * | 1972-12-04 | 1974-06-18 | Hughes Aircraft Co | Acoustic surface wave device |
GB1474605A (en) * | 1975-05-14 | 1977-05-25 | Secr Defence | Surface acoustic wave devices |
DE2618210C3 (de) * | 1976-04-26 | 1980-03-13 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Wandlerelektroden für Filter oder Verzögerungsleitungen nach dem Oberflächenwellenprinzip |
US4130813A (en) * | 1977-05-23 | 1978-12-19 | Raytheon Company | Surface wave device having enhanced reflectivity gratings |
US4206380A (en) * | 1978-12-22 | 1980-06-03 | Hitachi, Ltd. | Piezoelectric surface acoustic wave device with suppression of reflected signals |
SU945951A1 (ru) * | 1979-03-21 | 1982-07-23 | Ордена Трудового Красного Знамени Институт Радиотехники И Электроники Ан Ссср | Фильтр на поверхностных акустических волнах |
SU792553A1 (ru) * | 1979-04-05 | 1980-12-30 | Предприятие П/Я В-8941 | Полосовой фильтр на поверхностных акустических волнах |
JPS55158720A (en) * | 1979-05-28 | 1980-12-10 | Clarion Co Ltd | Surface elastic wave device |
GB2068672B (en) * | 1979-12-24 | 1984-11-07 | Clarion Co Ltd | Surface-acoustic-wave parametric device |
US4336515A (en) * | 1980-10-10 | 1982-06-22 | Zenith Radio Corporation | Acoustic filter with harmonic rejection |
US4370633A (en) * | 1981-01-19 | 1983-01-25 | U.S. Philips Corporation | Acoustic wave bandpass electrical filters |
GB2097212A (en) * | 1981-04-22 | 1982-10-27 | Philips Electronic Associated | Acoustic wave bandpass electrical filters |
JPS5848516A (ja) * | 1981-09-18 | 1983-03-22 | Toshiba Corp | 弾性表面波装置 |
US4473888A (en) * | 1981-10-28 | 1984-09-25 | The United States Of America As Represented By The Secretary Of The Army | Saw monolithic convolver using dispersive transducers |
GB2127249A (en) * | 1982-09-20 | 1984-04-04 | Philips Electronic Associated | Acoustic surface wave device |
US4544857A (en) * | 1983-08-29 | 1985-10-01 | Nec Corporation | High electromechanical-coupling coefficient surface acoustic wave device |
JPS6212206A (ja) * | 1985-07-10 | 1987-01-21 | Hitachi Ltd | 弾性表面波共振子 |
JPS6231212A (ja) * | 1985-08-02 | 1987-02-10 | Hitachi Ltd | 弾性表面波装置 |
JPS6423612A (en) * | 1987-07-20 | 1989-01-26 | Hitachi Ltd | Elastic surface wave device |
JP2606708B2 (ja) * | 1987-11-17 | 1997-05-07 | 日本無線株式会社 | 弾性表面波フィルタ |
JPH01137718A (ja) * | 1987-11-24 | 1989-05-30 | Toshiba Corp | 弾性表面波用トランスデューサ |
JPH01292908A (ja) * | 1988-05-20 | 1989-11-27 | Hitachi Ltd | 弾性表面波フィルタ |
DE4010310A1 (de) * | 1990-03-30 | 1991-10-02 | Siemens Ag | Oberflaechenwellenwandler, insbesondere in splitfinger-ausfuehrung, mit unterdrueckung von reflexionen endstaendiger wandlerfinger |
US5164628A (en) * | 1990-05-21 | 1992-11-17 | Canon Kabushiki Kaisha | Elastic surface wave convolva having wave width converting means and communication system using same |
DE4019004A1 (de) * | 1990-06-13 | 1991-12-19 | Siemens Ag | Interdigitalwandler mit fingerbreiten-wichtung fuer oberflaechenwellenanordnungen |
US5185548A (en) * | 1990-10-11 | 1993-02-09 | Canon Kabushiki Kaisha | Surface acoustic wave device with reflected wave at side edges on waveguide suppressed and communication system using the same |
US5061871A (en) * | 1991-01-25 | 1991-10-29 | R. F. Monolithics, Inc. | Electrode structure with constant velocity and zero reflectivity |
JP2847438B2 (ja) * | 1991-03-29 | 1999-01-20 | 三井金属鉱業株式会社 | 弾性表面波素子 |
US5438306A (en) * | 1992-07-02 | 1995-08-01 | Kazuhiko Yamanouchi | Surface acoustic wave filter device with symmetrical electrode arrangement |
JPH06260881A (ja) * | 1992-07-24 | 1994-09-16 | Mitsui Mining & Smelting Co Ltd | 弾性表面波コンボルバ |
JPH0685597A (ja) * | 1992-09-02 | 1994-03-25 | Mitsubishi Electric Corp | 弾性表面波装置 |
-
1992
- 1992-09-02 JP JP4234535A patent/JPH0685597A/ja active Pending
-
1993
- 1993-08-27 US US08/112,474 patent/US5396199A/en not_active Expired - Fee Related
- 1993-08-30 DE DE69321799T patent/DE69321799T2/de not_active Expired - Fee Related
- 1993-08-30 EP EP93113854A patent/EP0585863B1/de not_active Expired - Lifetime
- 1993-08-30 DE DE69332837T patent/DE69332837T2/de not_active Expired - Fee Related
- 1993-08-30 EP EP96112618A patent/EP0741451B1/de not_active Expired - Lifetime
-
1994
- 1994-05-12 US US08/241,995 patent/US5485051A/en not_active Expired - Fee Related
-
1995
- 1995-06-06 US US08/470,700 patent/US5565825A/en not_active Expired - Fee Related
- 1995-06-06 US US08/470,699 patent/US5670921A/en not_active Expired - Fee Related
-
1997
- 1997-02-19 US US08/801,033 patent/US5705964A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5565825A (en) | 1996-10-15 |
EP0741451B1 (de) | 2003-04-02 |
US5705964A (en) | 1998-01-06 |
DE69321799T2 (de) | 1999-05-12 |
EP0585863A1 (de) | 1994-03-09 |
US5396199A (en) | 1995-03-07 |
US5670921A (en) | 1997-09-23 |
US5485051A (en) | 1996-01-16 |
JPH0685597A (ja) | 1994-03-25 |
DE69321799D1 (de) | 1998-12-03 |
EP0741451A3 (de) | 1996-12-27 |
EP0585863B1 (de) | 1998-10-28 |
EP0741451A2 (de) | 1996-11-06 |
DE69332837T2 (de) | 2004-02-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |