FR2280251A1 - Filtre a ondes elastiques de surfaces comportant un transducteur a structure antisymetrique - Google Patents
Filtre a ondes elastiques de surfaces comportant un transducteur a structure antisymetriqueInfo
- Publication number
- FR2280251A1 FR2280251A1 FR7425663A FR7425663A FR2280251A1 FR 2280251 A1 FR2280251 A1 FR 2280251A1 FR 7425663 A FR7425663 A FR 7425663A FR 7425663 A FR7425663 A FR 7425663A FR 2280251 A1 FR2280251 A1 FR 2280251A1
- Authority
- FR
- France
- Prior art keywords
- antisymetric
- wave filter
- elastic wave
- filter containing
- surface elastic
- 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
- H03H9/64—Filters using surface acoustic waves
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/08—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of resonators or networks using surface acoustic waves
-
- 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
- H03H9/02897—Means for compensation or elimination of undesirable effects of strain or mechanical damage, e.g. strain due to bending influence
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7425663A FR2280251A1 (fr) | 1974-07-24 | 1974-07-24 | Filtre a ondes elastiques de surfaces comportant un transducteur a structure antisymetrique |
DE19752532757 DE2532757A1 (de) | 1974-07-24 | 1975-07-22 | Mit elastischen oberflaechenwellen arbeitendes filter |
GB30885/75A GB1514998A (en) | 1974-07-24 | 1975-07-23 | Surface elastic wave filter |
CA232,074A CA1038942A (fr) | 1974-07-24 | 1975-07-23 | Filtre pour onde de surface elastique |
BE156527A BE831641A (fr) | 1974-07-24 | 1975-07-23 | Filtre a ondes elastiques de surface |
JP9067375A JPS5536206B2 (fr) | 1974-07-24 | 1975-07-24 | |
PL18224175A PL97791B1 (pl) | 1974-07-24 | 1975-07-24 | Filtr sprezystych fal powierzchniowych |
US05/753,351 US4096456A (en) | 1974-07-24 | 1976-12-21 | Surface elastic wave filter |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7425663A FR2280251A1 (fr) | 1974-07-24 | 1974-07-24 | Filtre a ondes elastiques de surfaces comportant un transducteur a structure antisymetrique |
US59757475A | 1975-07-21 | 1975-07-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2280251A1 true FR2280251A1 (fr) | 1976-02-20 |
FR2280251B1 FR2280251B1 (fr) | 1978-05-05 |
Family
ID=26218447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7425663A Granted FR2280251A1 (fr) | 1974-07-24 | 1974-07-24 | Filtre a ondes elastiques de surfaces comportant un transducteur a structure antisymetrique |
Country Status (7)
Country | Link |
---|---|
US (1) | US4096456A (fr) |
JP (1) | JPS5536206B2 (fr) |
BE (1) | BE831641A (fr) |
CA (1) | CA1038942A (fr) |
DE (1) | DE2532757A1 (fr) |
FR (1) | FR2280251A1 (fr) |
GB (1) | GB1514998A (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1273701A (fr) * | 1986-03-12 | 1990-09-04 | Mark S. Suthers | Dispositif a ondes acoustiques de surface a transducteur interdigite apodise |
JPH0353137A (ja) * | 1989-07-20 | 1991-03-07 | Yakichi Higo | 応力測定法 |
JPH03260224A (ja) * | 1990-03-09 | 1991-11-20 | Shikoku Sogo Kenkyusho:Kk | 電柱支持装置 |
US7898498B2 (en) * | 2008-03-20 | 2011-03-01 | Honeywell International Inc. | Transducer for high-frequency antenna coupling and related apparatus and method |
US8451176B2 (en) * | 2009-06-11 | 2013-05-28 | Honeywell International Inc. | Method for achieving intrinsic safety compliance in wireless devices using isolated overlapping grounds and related apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2238845A1 (de) * | 1972-08-07 | 1974-02-14 | Siemens Ag | Filter oder verzoegerungsleitung mit oberflaechenwellen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3582838A (en) * | 1966-09-27 | 1971-06-01 | Zenith Radio Corp | Surface wave devices |
US3675163A (en) * | 1970-08-26 | 1972-07-04 | Clinton S Hartmann | Cascaded f. m. correlators for long pulses |
JPS519648A (fr) * | 1974-07-15 | 1976-01-26 | Nippon Telegraph & Telephone |
-
1974
- 1974-07-24 FR FR7425663A patent/FR2280251A1/fr active Granted
-
1975
- 1975-07-22 DE DE19752532757 patent/DE2532757A1/de not_active Ceased
- 1975-07-23 BE BE156527A patent/BE831641A/fr unknown
- 1975-07-23 GB GB30885/75A patent/GB1514998A/en not_active Expired
- 1975-07-23 CA CA232,074A patent/CA1038942A/fr not_active Expired
- 1975-07-24 JP JP9067375A patent/JPS5536206B2/ja not_active Expired
-
1976
- 1976-12-21 US US05/753,351 patent/US4096456A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2238845A1 (de) * | 1972-08-07 | 1974-02-14 | Siemens Ag | Filter oder verzoegerungsleitung mit oberflaechenwellen |
Also Published As
Publication number | Publication date |
---|---|
BE831641A (fr) | 1975-11-17 |
JPS5136848A (fr) | 1976-03-27 |
US4096456A (en) | 1978-06-20 |
FR2280251B1 (fr) | 1978-05-05 |
JPS5536206B2 (fr) | 1980-09-19 |
DE2532757A1 (de) | 1976-02-12 |
CA1038942A (fr) | 1978-09-19 |
GB1514998A (en) | 1978-06-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |