FR2334239A1 - Filtre de frequence a ondes elastiques de volume et oscillateur haute frequence utilisant un tel filtre - Google Patents
Filtre de frequence a ondes elastiques de volume et oscillateur haute frequence utilisant un tel filtreInfo
- Publication number
- FR2334239A1 FR2334239A1 FR7537317A FR7537317A FR2334239A1 FR 2334239 A1 FR2334239 A1 FR 2334239A1 FR 7537317 A FR7537317 A FR 7537317A FR 7537317 A FR7537317 A FR 7537317A FR 2334239 A1 FR2334239 A1 FR 2334239A1
- Authority
- FR
- France
- Prior art keywords
- filter
- elastic wave
- high frequency
- volume elastic
- frequency oscillator
- 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.)
- Granted
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
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)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7537317A FR2334239A1 (fr) | 1975-12-05 | 1975-12-05 | Filtre de frequence a ondes elastiques de volume et oscillateur haute frequence utilisant un tel filtre |
US05/746,127 US4074213A (en) | 1975-12-05 | 1976-11-30 | Elastic bulk wave frequency filter |
GB50377/76A GB1526380A (en) | 1975-12-05 | 1976-12-02 | Elastic bulk wave frequency filter |
DE19762654968 DE2654968A1 (de) | 1975-12-05 | 1976-12-03 | Frequenzfilter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7537317A FR2334239A1 (fr) | 1975-12-05 | 1975-12-05 | Filtre de frequence a ondes elastiques de volume et oscillateur haute frequence utilisant un tel filtre |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2334239A1 true FR2334239A1 (fr) | 1977-07-01 |
FR2334239B1 FR2334239B1 (fr) | 1979-06-15 |
Family
ID=9163383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7537317A Granted FR2334239A1 (fr) | 1975-12-05 | 1975-12-05 | Filtre de frequence a ondes elastiques de volume et oscillateur haute frequence utilisant un tel filtre |
Country Status (4)
Country | Link |
---|---|
US (1) | US4074213A (fr) |
DE (1) | DE2654968A1 (fr) |
FR (1) | FR2334239A1 (fr) |
GB (1) | GB1526380A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2128429A (en) * | 1982-09-17 | 1984-04-26 | Marconi Co Ltd | An oscillator |
GB2128436B (en) * | 1982-09-17 | 1986-07-09 | Marconi Co Ltd | A bragg cell |
US4573027A (en) * | 1984-05-30 | 1986-02-25 | The United States Of America As Represented By The Secretary Of The Air Force | Bulk acoustic resonator tracking filter |
US4692722A (en) * | 1984-10-12 | 1987-09-08 | Loral Corporation | Compact frequency dispersive bulk acoustic wave channelizer |
JPS61244112A (ja) * | 1985-04-23 | 1986-10-30 | Asahi Glass Co Ltd | 超音波遅延線 |
US4771231A (en) * | 1987-11-16 | 1988-09-13 | Westinghouse Electric Corp. | Microwave oscillator with optical readout of resonance phenomena |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB988102A (en) * | 1962-08-03 | 1965-04-07 | Marconi Co Ltd | Improvements in or relating to wave-energy delay cells |
US3522557A (en) * | 1963-07-19 | 1970-08-04 | Bell Telephone Labor Inc | Acoustic delay line |
FR657592A (fr) * | 1963-12-24 | 1929-06-06 | Perfectionnements aux conduits de fumée | |
US3562676A (en) * | 1967-12-18 | 1971-02-09 | Bell Telephone Labor Inc | Folded path perpendicular diffraction delay line |
-
1975
- 1975-12-05 FR FR7537317A patent/FR2334239A1/fr active Granted
-
1976
- 1976-11-30 US US05/746,127 patent/US4074213A/en not_active Expired - Lifetime
- 1976-12-02 GB GB50377/76A patent/GB1526380A/en not_active Expired
- 1976-12-03 DE DE19762654968 patent/DE2654968A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
FR2334239B1 (fr) | 1979-06-15 |
US4074213A (en) | 1978-02-14 |
DE2654968A1 (de) | 1977-06-16 |
GB1526380A (en) | 1978-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |