FR2403689A1 - Dispositif a ondes elastiques de surface pour le traitement de signaux haute frequence - Google Patents
Dispositif a ondes elastiques de surface pour le traitement de signaux haute frequenceInfo
- Publication number
- FR2403689A1 FR2403689A1 FR7728303A FR7728303A FR2403689A1 FR 2403689 A1 FR2403689 A1 FR 2403689A1 FR 7728303 A FR7728303 A FR 7728303A FR 7728303 A FR7728303 A FR 7728303A FR 2403689 A1 FR2403689 A1 FR 2403689A1
- Authority
- FR
- France
- Prior art keywords
- treatment
- high frequency
- wave device
- frequency signals
- elastic 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.)
- Withdrawn
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
- H03H9/30—Time-delay networks
- H03H9/42—Time-delay networks using surface acoustic waves
- H03H9/44—Frequency dependent delay lines, e.g. dispersive delay lines
-
- 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
- H03H9/02779—Continuous surface reflective arrays
-
- 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
- H03H9/0296—Surface acoustic wave [SAW] devices having both acoustic and non-acoustic properties
- H03H9/02968—Surface acoustic wave [SAW] devices having both acoustic and non-acoustic properties with optical devices
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Abstract
Dispositif à ondes de surfaces pour le traitement d'ondes haute fréquence. Dans les dispositifs de l'invention le traitement est effectué directement sur les ondes qui se propagent. Des zones de discontinuité de vitesse de propagation sont réalisées sur la surface de propagation. Le traitement effectué dépend du nombre et des dimensions de ces zones. Ces dispositifs permettent d'obtenir des filtres à ondes de surface, filtres de bande, lignes dispersives... qui fonctionnent à des fréquence supérieures à celles des filtres classiques.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7728303A FR2403689A1 (fr) | 1977-09-20 | 1977-09-20 | Dispositif a ondes elastiques de surface pour le traitement de signaux haute frequence |
US05/942,622 US4217564A (en) | 1977-09-20 | 1978-09-15 | Elastic surface wave device for treating high frequency signals |
DE19782840928 DE2840928A1 (de) | 1977-09-20 | 1978-09-20 | Mit akustischen oberflaechenwellen arbeitende vorrichtung zur verarbeitung von hochfrequenzwellen |
GB7837541A GB2005103B (en) | 1977-09-20 | 1978-09-20 | Elastic surface wave device for treating high frequency signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7728303A FR2403689A1 (fr) | 1977-09-20 | 1977-09-20 | Dispositif a ondes elastiques de surface pour le traitement de signaux haute frequence |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2403689A1 true FR2403689A1 (fr) | 1979-04-13 |
Family
ID=9195568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7728303A Withdrawn FR2403689A1 (fr) | 1977-09-20 | 1977-09-20 | Dispositif a ondes elastiques de surface pour le traitement de signaux haute frequence |
Country Status (4)
Country | Link |
---|---|
US (1) | US4217564A (fr) |
DE (1) | DE2840928A1 (fr) |
FR (1) | FR2403689A1 (fr) |
GB (1) | GB2005103B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468255A1 (fr) * | 1979-10-22 | 1981-04-30 | United Kingdom Government | Dispositifs a ondes acoustiques de surface et systemes comportant de tels dispositifs |
FR2571907A1 (fr) * | 1984-10-15 | 1986-04-18 | Clarion Co Ltd | Dispositif a onde acoustique de surface |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4330768A (en) * | 1980-10-02 | 1982-05-18 | The United States Of America As Represented By The Secretary Of The Navy | Dispersion compensated acoustic surface waveguides using diffused substrates |
GB2117593B (en) * | 1982-03-31 | 1985-11-27 | Marconi Co Ltd | Adjusting the frequency response of surface acoustic wave devices |
US4725841A (en) * | 1983-06-30 | 1988-02-16 | X-Cyte, Inc. | System for interrogating a passive transponder carrying phase-encoded information |
US4625207A (en) * | 1983-06-30 | 1986-11-25 | X-Cyte Inc. | Surface acoustic wave passive transponder having amplitude and phase-modifying surface pads |
GB2156619A (en) * | 1984-03-22 | 1985-10-09 | Era Patents Ltd | Variable surface acoustic wave device |
US4748364A (en) * | 1984-10-15 | 1988-05-31 | Clarion Co., Ltd. | Surface acoustic wave device |
US5010270A (en) * | 1986-12-22 | 1991-04-23 | Raytheon Company | Saw device |
US5091051A (en) * | 1986-12-22 | 1992-02-25 | Raytheon Company | Saw device method |
US5519365A (en) * | 1991-03-29 | 1996-05-21 | Electronic Decisions Inc. | Waveguide for an acoustic charge transport device |
US6107910A (en) | 1996-11-29 | 2000-08-22 | X-Cyte, Inc. | Dual mode transmitter/receiver and decoder for RF transponder tags |
US6060815A (en) * | 1997-08-18 | 2000-05-09 | X-Cyte, Inc. | Frequency mixing passive transponder |
US6208062B1 (en) | 1997-08-18 | 2001-03-27 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
US5986382A (en) | 1997-08-18 | 1999-11-16 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
US6114971A (en) * | 1997-08-18 | 2000-09-05 | X-Cyte, Inc. | Frequency hopping spread spectrum passive acoustic wave identification device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737811A (en) * | 1970-02-13 | 1973-06-05 | Mini Of Aviat Supply In Her Br | Acoustic surface wave device wherein acoustic surface waves may be propagated with an electric field dependent velocity |
US3963997A (en) * | 1973-10-30 | 1976-06-15 | Thomson-Csf | Device for the directive transmission of elastic surface waves and process for making the same |
GB1474605A (en) * | 1975-05-14 | 1977-05-25 | Secr Defence | Surface acoustic wave devices |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3845420A (en) * | 1973-03-02 | 1974-10-29 | Raytheon Co | Surface acoustic wave phase control device |
US3831115A (en) * | 1973-07-20 | 1974-08-20 | Bell Telephone Labor Inc | Acoustic surface waveguide with graded profile cross section |
-
1977
- 1977-09-20 FR FR7728303A patent/FR2403689A1/fr not_active Withdrawn
-
1978
- 1978-09-15 US US05/942,622 patent/US4217564A/en not_active Expired - Lifetime
- 1978-09-20 DE DE19782840928 patent/DE2840928A1/de not_active Withdrawn
- 1978-09-20 GB GB7837541A patent/GB2005103B/en not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737811A (en) * | 1970-02-13 | 1973-06-05 | Mini Of Aviat Supply In Her Br | Acoustic surface wave device wherein acoustic surface waves may be propagated with an electric field dependent velocity |
US3963997A (en) * | 1973-10-30 | 1976-06-15 | Thomson-Csf | Device for the directive transmission of elastic surface waves and process for making the same |
GB1474605A (en) * | 1975-05-14 | 1977-05-25 | Secr Defence | Surface acoustic wave devices |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2468255A1 (fr) * | 1979-10-22 | 1981-04-30 | United Kingdom Government | Dispositifs a ondes acoustiques de surface et systemes comportant de tels dispositifs |
FR2571907A1 (fr) * | 1984-10-15 | 1986-04-18 | Clarion Co Ltd | Dispositif a onde acoustique de surface |
Also Published As
Publication number | Publication date |
---|---|
DE2840928A1 (de) | 1979-03-22 |
GB2005103A (en) | 1979-04-11 |
GB2005103B (en) | 1982-07-21 |
US4217564A (en) | 1980-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |