DE69827187D1 - Akustische Oberflächenwellenanordnung mit Nahfeldkopplung und differentiellen Ein- und Ausgängen - Google Patents
Akustische Oberflächenwellenanordnung mit Nahfeldkopplung und differentiellen Ein- und AusgängenInfo
- Publication number
- DE69827187D1 DE69827187D1 DE69827187T DE69827187T DE69827187D1 DE 69827187 D1 DE69827187 D1 DE 69827187D1 DE 69827187 T DE69827187 T DE 69827187T DE 69827187 T DE69827187 T DE 69827187T DE 69827187 D1 DE69827187 D1 DE 69827187D1
- Authority
- DE
- Germany
- Prior art keywords
- outputs
- near field
- surface wave
- field coupling
- acoustic surface
- 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
- H03H9/70—Multiple-port networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
- H03H9/72—Networks using surface acoustic waves
- H03H9/725—Duplexers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/0023—Balance-unbalance or balance-balance networks
- H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/0023—Balance-unbalance or balance-balance networks
- H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
- H03H9/0047—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks
- H03H9/0052—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically cascaded
- H03H9/0057—Balance-unbalance or balance-balance networks using surface acoustic wave devices having two acoustic tracks being electrically cascaded the balanced terminals being on the same side of the tracks
-
- 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
- H03H9/05—Holders; Supports
- H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
- H03H9/0566—Constructional combinations of supports or holders with electromechanical or other electronic elements for duplexers
- H03H9/0576—Constructional combinations of supports or holders with electromechanical or other electronic elements for duplexers including surface acoustic wave [SAW] devices
-
- 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
- H03H9/02818—Means for compensation or elimination of undesirable effects
- H03H9/02874—Means for compensation or elimination of undesirable effects of direct coupling between input and output transducers
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9704831A FR2762458B1 (fr) | 1997-04-18 | 1997-04-18 | Dispositif a ondes acoustiques de surface a couplage par proximite a entrees/sorties differentielles |
FR9704831 | 1997-04-18 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69827187D1 true DE69827187D1 (de) | 2004-12-02 |
DE69827187T2 DE69827187T2 (de) | 2005-12-01 |
Family
ID=9506090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69827187T Expired - Fee Related DE69827187T2 (de) | 1997-04-18 | 1998-04-14 | Akustische Oberflächenwellenanordnung mit Nahfeldkopplung und differentiellen Ein- und Ausgängen |
Country Status (9)
Country | Link |
---|---|
US (1) | US5936487A (de) |
EP (1) | EP0872954B1 (de) |
JP (1) | JP2957159B2 (de) |
KR (1) | KR100280593B1 (de) |
CN (1) | CN1133269C (de) |
CA (1) | CA2235058C (de) |
DE (1) | DE69827187T2 (de) |
FR (1) | FR2762458B1 (de) |
SG (1) | SG71106A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6801100B2 (en) * | 1996-05-23 | 2004-10-05 | Matsushita Electric Industrial Co., Ltd. | Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same |
DE69700938T2 (de) * | 1996-05-23 | 2000-05-04 | Matsushita Electric Ind Co Ltd | Akustischer Oberflächenwellenfilter und mehrstufiger akustischer Oberflächenwellenfilter |
US6348845B2 (en) | 1996-05-23 | 2002-02-19 | Matsushita Electric Industrial Co., Ltd. | Surface acoustic wave filter and multistage surface acoustic wave filter |
DE19638370C2 (de) * | 1996-09-19 | 2001-06-13 | Epcos Ag | Oberflächenwellenfilter für unsymmetrische/symmetrische und symmetrische/symmetrische Betriebsweise |
FR2774826B1 (fr) | 1998-02-06 | 2000-05-05 | Thomson Csf | Filtre a resonateurs a ondes acoustiques de surface |
KR20010034613A (ko) * | 1998-03-23 | 2001-04-25 | 에프코스 아게 | 표면파 음향 필터 |
FR2782568B1 (fr) | 1998-08-21 | 2001-08-10 | Thomson Csf | Filtre acoustique a deux canaux differents a compensation de rejection |
FR2785473B1 (fr) * | 1998-10-30 | 2001-01-26 | Thomson Csf | Filtre faibles pertes a ondes acoustiques de surface sur substrat de quartz de coupe optimisee |
JP3918433B2 (ja) | 1999-04-28 | 2007-05-23 | セイコーエプソン株式会社 | 横2重モードsawフィルタ |
US6255915B1 (en) | 1999-05-10 | 2001-07-03 | Research In Motion Limited | Differential surface acoustic wave filter having balanced outputs |
DE19938748B4 (de) | 1999-08-16 | 2007-02-01 | Epcos Ag | Dualmode-Oberflächenwellen-Filter mit verbesserter Symmetrie und erhöhter Sperrdämpfung |
KR100606702B1 (ko) * | 2000-01-04 | 2006-07-31 | 엘지전자 주식회사 | 도파관 표면탄성파 필터 |
US6462698B2 (en) | 2000-06-02 | 2002-10-08 | Research In Motion Limited | Wireless communication system using surface acoustic wave (SAW) single-phase unidirectional transducer (SPUDT) techniques |
US6825794B2 (en) | 2000-06-02 | 2004-11-30 | Research In Motion Limited | Wireless communication system using surface acoustic wave (SAW) second harmonic techniques |
US6798318B1 (en) * | 2001-04-27 | 2004-09-28 | Sawtek, Inc. | Hybrid leaky surface acoustic wave resonator filter |
US6861927B1 (en) | 2001-04-27 | 2005-03-01 | Sawtek, Inc. | Longitudinally coupled leaky surface acoustic wave resonator filter |
EP1263137B1 (de) * | 2001-05-31 | 2017-07-26 | Skyworks Filter Solutions Japan Co., Ltd. | Akustisches Oberflächenwellenfilter, symmetrisches Filter und Kommunikationsgerät |
TW569530B (en) * | 2001-10-03 | 2004-01-01 | Matsushita Electric Ind Co Ltd | Surface acoustic wave device and electronic components using the device |
DE10163517B4 (de) * | 2001-12-14 | 2009-12-17 | Leibniz-Institut für Festkörper- und Werkstoffforschung e.V. | Resonatorfilterkaskade |
JP4079658B2 (ja) * | 2002-03-05 | 2008-04-23 | 株式会社リコー | 2値化ウォブル信号を生成する回路、ライトクロック生成回路、2値化ウォブル信号を生成する方法、ライトクロック生成方法及び光ディスク装置 |
FR2837636B1 (fr) * | 2002-03-19 | 2004-09-24 | Thales Sa | Dispositif a ondes acoustiques d'interface en tantalate de lithium |
FR2864618B1 (fr) * | 2003-12-24 | 2006-03-03 | Temex Sa | Capteur de temperature ou de temperature et de pression interrogeable a distance |
CN102636204B (zh) * | 2012-05-08 | 2014-11-12 | 中国电子科技集团公司第五十五研究所 | 自编号声表面波无源无线谐振型传感器 |
CN106877838B (zh) * | 2017-01-16 | 2020-06-09 | 深圳华远微电科技有限公司 | 声表面波滤波器 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2628265B1 (fr) * | 1987-03-06 | 1990-12-21 | Thomson Csf | Antenne directive a transducteurs multiples notamment pour sonar |
FR2638047B1 (de) * | 1988-10-14 | 1990-11-23 | Thomson Csf | |
US5264751A (en) * | 1989-10-20 | 1993-11-23 | Thomson-Csf | Unilateral surface wave transducer |
FR2658013B1 (fr) * | 1990-02-02 | 1992-04-17 | Thomson Csf | Filtre a ondes acoustiques de surface. |
FR2661292B1 (fr) * | 1990-04-24 | 1995-07-21 | Thomson Csf | Filtre a ondes de surface et a faibles pertes. |
FR2682833B1 (fr) * | 1991-10-18 | 1993-12-03 | Thomson Csf | Filtre a ondes de surface et a trajet acoustique replie. |
FR2695771B1 (fr) * | 1992-09-15 | 1994-10-28 | Thomson Csf | Transducteur d'ondes unidirectionnel. |
US5703427A (en) * | 1993-03-19 | 1997-12-30 | Thomson-Csf | Surface-wave distributed acoustic reflection transducer and filter including such a transducer |
EP0648015B1 (de) * | 1993-10-08 | 2000-05-31 | Matsushita Electric Industrial Co., Ltd. | Akustisches Oberflächenwellenfilter |
US5365138A (en) * | 1993-12-02 | 1994-11-15 | Northern Telecom Limited | Double mode surface wave resonators |
DE4439489C1 (de) * | 1994-10-26 | 1996-01-18 | Tele Filter Tft Gmbh | Akustisches Oberflächenwellenbauelement und Verfahren zur Herstellung |
US5790000A (en) * | 1995-06-16 | 1998-08-04 | Northern Telecom Limited | Cascaded surface wave device filters providing balanced and unbalanced signal connections |
FR2739232B1 (fr) * | 1995-09-26 | 1997-10-24 | Thomson Csf | Filtre a ondes acoustiques de surface utilisant le couplage de trois voies acoustiques |
US5793266A (en) * | 1996-08-12 | 1998-08-11 | Motorola Inc. | Differential input and/or differential output, transversely-coupled surface acoustic wave filter |
-
1997
- 1997-04-18 FR FR9704831A patent/FR2762458B1/fr not_active Expired - Fee Related
-
1998
- 1998-04-09 SG SG1998000824A patent/SG71106A1/en unknown
- 1998-04-09 US US09/057,451 patent/US5936487A/en not_active Expired - Fee Related
- 1998-04-14 DE DE69827187T patent/DE69827187T2/de not_active Expired - Fee Related
- 1998-04-14 EP EP98400915A patent/EP0872954B1/de not_active Expired - Lifetime
- 1998-04-16 CA CA002235058A patent/CA2235058C/fr not_active Expired - Fee Related
- 1998-04-16 KR KR1019980013549A patent/KR100280593B1/ko not_active IP Right Cessation
- 1998-04-17 CN CN98101564A patent/CN1133269C/zh not_active Expired - Fee Related
- 1998-04-17 JP JP10107498A patent/JP2957159B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US5936487A (en) | 1999-08-10 |
DE69827187T2 (de) | 2005-12-01 |
CA2235058A1 (fr) | 1998-10-18 |
CN1197328A (zh) | 1998-10-28 |
FR2762458A1 (fr) | 1998-10-23 |
EP0872954B1 (de) | 2004-10-27 |
JPH10303683A (ja) | 1998-11-13 |
FR2762458B1 (fr) | 1999-07-09 |
CN1133269C (zh) | 2003-12-31 |
EP0872954A1 (de) | 1998-10-21 |
KR19980081450A (ko) | 1998-11-25 |
JP2957159B2 (ja) | 1999-10-04 |
CA2235058C (fr) | 2002-01-29 |
KR100280593B1 (ko) | 2001-02-01 |
SG71106A1 (en) | 2000-03-21 |
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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 |