DE69307201D1 - Akustische Oberflächenwellenanordnung, Demodulator und Kommunikationssystem mit dieser akustischen Oberflächenwellenanordnung - Google Patents
Akustische Oberflächenwellenanordnung, Demodulator und Kommunikationssystem mit dieser akustischen OberflächenwellenanordnungInfo
- Publication number
- DE69307201D1 DE69307201D1 DE69307201T DE69307201T DE69307201D1 DE 69307201 D1 DE69307201 D1 DE 69307201D1 DE 69307201 T DE69307201 T DE 69307201T DE 69307201 T DE69307201 T DE 69307201T DE 69307201 D1 DE69307201 D1 DE 69307201D1
- Authority
- DE
- Germany
- Prior art keywords
- surface wave
- acoustic surface
- wave arrangement
- demodulator
- communication system
- 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
- H03H9/02—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
- H03H9/14561—Arched, curved or ring 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
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6406—Filters characterised by a particular frequency characteristic
- H03H9/6416—SAW matched filters, e.g. surface acoustic wave compressors, chirped or coded surface acoustic wave 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
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/6486—Coupled resonator filters having crossing or intersecting acoustic tracks, e.g. intersection in a perpendicular or diagonal orientation
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19280892 | 1992-06-29 | ||
JP5182213A JPH0677759A (ja) | 1992-06-29 | 1993-06-29 | 弾性表面波素子及びそれを用いた復調装置及び通信システム |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69307201D1 true DE69307201D1 (de) | 1997-02-20 |
DE69307201T2 DE69307201T2 (de) | 1997-05-15 |
Family
ID=26501094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69307201T Expired - Fee Related DE69307201T2 (de) | 1992-06-29 | 1993-06-29 | Akustische Oberflächenwellenanordnung, Demodulator und Kommunikationssystem mit dieser akustischen Oberflächenwellenanordnung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5374863A (de) |
EP (1) | EP0577089B1 (de) |
JP (1) | JPH0677759A (de) |
DE (1) | DE69307201T2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5734326A (en) * | 1994-11-28 | 1998-03-31 | The United States Of America As Represented By The Secretary Of The Army | Recognition tag for use in a system for identifying distant items |
JPH0998061A (ja) * | 1995-07-24 | 1997-04-08 | Canon Inc | Sawマッチドフィルタ及びこれを用いた受信装置及び通信システム |
DE19911369C2 (de) | 1999-03-15 | 2003-04-03 | Nanotron Ges Fuer Mikrotechnik | Oberflächen-Wellen-Wandler-Einrichtung sowie Identifikationssystem hiermit |
US6407650B1 (en) * | 1999-08-27 | 2002-06-18 | Board Of Regents The University Of Texas System | Surface acoustic wave shaping system |
GB2363011B (en) * | 2000-05-31 | 2002-04-17 | Acoustical Tech Sg Pte Ltd | Surface acoustic wave device |
US6919669B2 (en) * | 2002-03-15 | 2005-07-19 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Electro-active device using radial electric field piezo-diaphragm for sonic applications |
DE102006042616B4 (de) * | 2006-09-04 | 2008-07-03 | Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. | Wellenleiterbauelemente auf der Grundlage akustischer Oberflächenwellen und deren Verwendung |
JP4760931B2 (ja) * | 2009-03-02 | 2011-08-31 | 株式会社デンソー | 弾性表面波素子 |
DE102009002631B4 (de) * | 2009-04-24 | 2015-08-20 | Michael Förg | Piezoelektrischer Antrieb und Mikroventil mit einem solchen |
US10848124B2 (en) * | 2016-10-19 | 2020-11-24 | University Of Massachusetts | Piezoelectric transducer device with resonance region |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3845419A (en) * | 1973-04-02 | 1974-10-29 | G Nudd | Acoustic surface wave device |
JPS5434519B2 (de) * | 1973-08-31 | 1979-10-27 | ||
US3882433A (en) * | 1974-02-15 | 1975-05-06 | Zenith Radio Corp | Swif with transducers having varied duty factor fingers for trap enhancement |
US4075582A (en) * | 1976-06-14 | 1978-02-21 | International Business Machines Corporation | Surface acoustic wave device |
US4166987A (en) * | 1978-02-15 | 1979-09-04 | Bell Telephone Laboratories, Incorporated | Surface acoustic wave multistrip coupler |
US4506239A (en) * | 1982-10-25 | 1985-03-19 | Motorola, Inc. | Compound surface acoustic wave matched filters |
EP0373404B1 (de) * | 1988-12-15 | 1997-01-29 | Canon Kabushiki Kaisha | Oberflächenschallwellenfaltungsvorrichtung mit mehreren Wellenleiterwegen zur Erzeugung von Faltungssignalen mit gegenseitig verschiedenen Phasen |
JPH02189015A (ja) * | 1989-01-17 | 1990-07-25 | Clarion Co Ltd | 弾性表面波装置 |
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 |
US5200663A (en) * | 1990-08-29 | 1993-04-06 | Canon Kabushiki Kaisha | Surface acoustic wave device provided with output transducer split into a plurality of portions, and communication system using the same |
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 |
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 |
-
1993
- 1993-06-29 US US08/083,432 patent/US5374863A/en not_active Expired - Fee Related
- 1993-06-29 EP EP93110389A patent/EP0577089B1/de not_active Expired - Lifetime
- 1993-06-29 JP JP5182213A patent/JPH0677759A/ja active Pending
- 1993-06-29 DE DE69307201T patent/DE69307201T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0577089B1 (de) | 1997-01-08 |
DE69307201T2 (de) | 1997-05-15 |
EP0577089A1 (de) | 1994-01-05 |
JPH0677759A (ja) | 1994-03-18 |
US5374863A (en) | 1994-12-20 |
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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 |