BE783831A - Elektromechanisch filter - Google Patents
Elektromechanisch filterInfo
- Publication number
- BE783831A BE783831A BE783831A BE783831A BE783831A BE 783831 A BE783831 A BE 783831A BE 783831 A BE783831 A BE 783831A BE 783831 A BE783831 A BE 783831A BE 783831 A BE783831 A BE 783831A
- Authority
- BE
- Belgium
- Prior art keywords
- elektromechanisch
- filter
- elektromechanisch filter
- Prior art date
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
-
- 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
- H03H9/14517—Means for weighting
-
- 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
- H03H9/14517—Means for weighting
- H03H9/1452—Means for weighting by finger overlap length, apodisation
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1664171 | 1971-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE783831A true BE783831A (fr) | 1972-11-23 |
Family
ID=10080983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE783831A BE783831A (fr) | 1971-05-24 | 1972-05-23 | Elektromechanisch filter |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US3768032A (de) |
| JP (1) | JPS5320181B1 (de) |
| AU (1) | AU461183B2 (de) |
| BE (1) | BE783831A (de) |
| CA (1) | CA965186A (de) |
| DE (1) | DE2224497C3 (de) |
| ES (1) | ES403041A1 (de) |
| FR (1) | FR2138957B1 (de) |
| GB (1) | GB1355418A (de) |
| IT (1) | IT958930B (de) |
| NL (1) | NL7206879A (de) |
| SE (1) | SE380412B (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3906432A (en) * | 1972-07-20 | 1975-09-16 | Ibm | Grating guides for acoustic surface waves |
| JPS5418910B2 (de) * | 1973-08-31 | 1979-07-11 | ||
| GB1514923A (en) * | 1974-07-02 | 1978-06-21 | Plessey Co Ltd | Acoustic surface wave filters |
| DE2618210C3 (de) * | 1976-04-26 | 1980-03-13 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Wandlerelektroden für Filter oder Verzögerungsleitungen nach dem Oberflächenwellenprinzip |
| JPS55157480U (de) * | 1979-04-27 | 1980-11-12 | ||
| JPS56132807A (en) * | 1980-03-24 | 1981-10-17 | Hitachi Ltd | Surface wave circuit equipment |
| JPS5745376U (de) * | 1980-08-27 | 1982-03-12 | ||
| JPH0559609B1 (de) * | 1980-11-17 | 1993-08-31 | British Tech Group | |
| JPS596612A (ja) * | 1982-07-05 | 1984-01-13 | Hitachi Ltd | 弾性表面波装置 |
| GB2157522B (en) * | 1984-04-09 | 1987-08-19 | Philips Electronic Associated | Electrical filter comprising an acoustic surface wave device, and method of manufacturing such a filter |
| JP4735840B2 (ja) | 2005-12-06 | 2011-07-27 | セイコーエプソン株式会社 | 圧電体積層体、表面弾性波素子、薄膜圧電共振子および圧電アクチュエータ |
| CN100539228C (zh) * | 2005-12-06 | 2009-09-09 | 精工爱普生株式会社 | 压电层压体、表面声波元件、压电谐振器及压电传动装置 |
| EP1998443B1 (de) * | 2006-03-17 | 2013-03-20 | Murata Manufacturing Co. Ltd. | Resonator für akustisch-mechanische schwingungen |
| EP2091146B1 (de) * | 2006-11-08 | 2015-07-22 | Skyworks Panasonic Filter Solutions Japan Co., Ltd. | Oberflächenwellenresonator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3289114A (en) * | 1963-12-24 | 1966-11-29 | Bell Telephone Labor Inc | Tapped ultrasonic delay line and uses therefor |
| US3696312A (en) * | 1970-06-30 | 1972-10-03 | Ibm | Cyclotron resonance devices controllable by electric fields |
-
1971
- 1971-05-24 GB GB1664171A patent/GB1355418A/en not_active Expired
-
1972
- 1972-05-19 CA CA142,540A patent/CA965186A/en not_active Expired
- 1972-05-19 DE DE2224497A patent/DE2224497C3/de not_active Expired
- 1972-05-19 US US00254881A patent/US3768032A/en not_active Expired - Lifetime
- 1972-05-19 SE SE7206577A patent/SE380412B/xx unknown
- 1972-05-20 NL NL7206879A patent/NL7206879A/xx unknown
- 1972-05-20 IT IT68608/72A patent/IT958930B/it active
- 1972-05-20 JP JP4957672A patent/JPS5320181B1/ja active Pending
- 1972-05-22 AU AU42544/72A patent/AU461183B2/en not_active Expired
- 1972-05-22 ES ES403041A patent/ES403041A1/es not_active Expired
- 1972-05-23 BE BE783831A patent/BE783831A/xx unknown
- 1972-05-24 FR FR727218435A patent/FR2138957B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2138957B1 (de) | 1973-07-13 |
| NL7206879A (de) | 1972-11-28 |
| IT958930B (it) | 1973-10-30 |
| ES403041A1 (es) | 1975-04-16 |
| DE2224497B2 (de) | 1979-11-29 |
| AU4254472A (en) | 1973-11-29 |
| AU461183B2 (en) | 1975-05-15 |
| FR2138957A1 (de) | 1973-01-05 |
| SE380412B (sv) | 1975-11-03 |
| GB1355418A (en) | 1974-06-05 |
| JPS5320181B1 (de) | 1978-06-24 |
| DE2224497C3 (de) | 1980-09-25 |
| US3768032A (en) | 1973-10-23 |
| DE2224497A1 (de) | 1972-11-30 |
| CA965186A (en) | 1975-03-25 |
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