DE69423062D1 - Akustische Oberflächenwellenanordnung - Google Patents
Akustische OberflächenwellenanordnungInfo
- Publication number
- DE69423062D1 DE69423062D1 DE69423062T DE69423062T DE69423062D1 DE 69423062 D1 DE69423062 D1 DE 69423062D1 DE 69423062 T DE69423062 T DE 69423062T DE 69423062 T DE69423062 T DE 69423062T DE 69423062 D1 DE69423062 D1 DE 69423062D1
- Authority
- DE
- Germany
- Prior art keywords
- acoustic wave
- surface acoustic
- wave arrangement
- arrangement
- 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.)
- Expired - Lifetime
Links
- 238000010897 surface acoustic wave method Methods 0.000 title 1
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
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02543—Characteristics of substrate, e.g. cutting angles
-
- 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
- H03H9/1455—Transducers of particular shape or position constituted of N parallel or series 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
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6426—Combinations of the characteristics of different transducers
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21350693 | 1993-08-06 | ||
JP21350793 | 1993-08-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69423062D1 true DE69423062D1 (de) | 2000-03-30 |
DE69423062T2 DE69423062T2 (de) | 2000-06-29 |
Family
ID=26519836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69423062T Expired - Lifetime DE69423062T2 (de) | 1993-08-06 | 1994-08-08 | Akustische Oberflächenwellenanordnung |
Country Status (3)
Country | Link |
---|---|
US (1) | US5585684A (de) |
EP (1) | EP0637872B1 (de) |
DE (1) | DE69423062T2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3227645B2 (ja) * | 1996-09-17 | 2001-11-12 | 株式会社村田製作所 | 弾性表面波装置 |
DE19638370C2 (de) * | 1996-09-19 | 2001-06-13 | Epcos Ag | Oberflächenwellenfilter für unsymmetrische/symmetrische und symmetrische/symmetrische Betriebsweise |
JP3568025B2 (ja) * | 1999-05-14 | 2004-09-22 | 株式会社村田製作所 | 表面波装置及び通信機装置 |
JP2001267885A (ja) * | 2000-03-17 | 2001-09-28 | Fujitsu Media Device Kk | 弾性表面波装置 |
JP3480445B2 (ja) * | 2001-01-10 | 2003-12-22 | 株式会社村田製作所 | 弾性表面波装置 |
JP3384403B2 (ja) * | 2001-03-01 | 2003-03-10 | 株式会社村田製作所 | 弾性表面波装置、通信装置 |
JP3864850B2 (ja) * | 2001-08-09 | 2007-01-10 | 株式会社村田製作所 | 弾性表面波フィルタ、通信装置 |
JP3826877B2 (ja) * | 2002-01-22 | 2006-09-27 | 株式会社村田製作所 | 弾性表面波装置およびそれを有する通信装置 |
WO2008038459A1 (fr) * | 2006-09-25 | 2008-04-03 | Murata Manufacturing Co., Ltd. | Filtre d'onde acoustique limite |
KR101655302B1 (ko) * | 2009-09-22 | 2016-09-07 | 삼성전자주식회사 | 표면 탄성파 센서 시스템 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS583307A (ja) * | 1981-06-29 | 1983-01-10 | Toyo Commun Equip Co Ltd | 弾性表面波多重モ−ドフィルタ |
EP0166880B1 (de) * | 1984-06-05 | 1990-01-03 | Kabushiki Kaisha Toshiba | Akustische Oberflächen-Wellen-Anordnung |
JPS61285814A (ja) * | 1985-06-12 | 1986-12-16 | Toyo Commun Equip Co Ltd | 縦型2重モ−ドsawフイルタ |
JPH03296316A (ja) * | 1990-04-13 | 1991-12-27 | Nikko Kyodo Co Ltd | 弾性表面波共振子フィルタ |
JP3244094B2 (ja) * | 1992-03-13 | 2002-01-07 | キンセキ株式会社 | 弾性表面波装置 |
JPH05259802A (ja) * | 1992-03-16 | 1993-10-08 | Japan Energy Corp | 弾性表面波装置 |
-
1994
- 1994-08-08 EP EP94305875A patent/EP0637872B1/de not_active Expired - Lifetime
- 1994-08-08 DE DE69423062T patent/DE69423062T2/de not_active Expired - Lifetime
-
1995
- 1995-12-06 US US08/567,805 patent/US5585684A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69423062T2 (de) | 2000-06-29 |
EP0637872A2 (de) | 1995-02-08 |
US5585684A (en) | 1996-12-17 |
EP0637872A3 (de) | 1995-12-13 |
EP0637872B1 (de) | 2000-02-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |