DE69330309D1 - Akustisches oberflächenwellenfilter mit mehrfach-bandbreite - Google Patents
Akustisches oberflächenwellenfilter mit mehrfach-bandbreiteInfo
- Publication number
- DE69330309D1 DE69330309D1 DE69330309T DE69330309T DE69330309D1 DE 69330309 D1 DE69330309 D1 DE 69330309D1 DE 69330309 T DE69330309 T DE 69330309T DE 69330309 T DE69330309 T DE 69330309T DE 69330309 D1 DE69330309 D1 DE 69330309D1
- Authority
- DE
- Germany
- Prior art keywords
- wave filter
- surface wave
- acoustic surface
- multiple bandwidth
- bandwidth
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
-
- 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
- H03H9/6403—Programmable filters
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Electrophonic Musical Instruments (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/999,256 US5365207A (en) | 1992-12-31 | 1992-12-31 | Multi-bandwidth saw filter |
PCT/US1993/012206 WO1994016498A1 (en) | 1992-12-31 | 1993-12-14 | A multi-bandwidth saw filter |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69330309D1 true DE69330309D1 (de) | 2001-07-12 |
DE69330309T2 DE69330309T2 (de) | 2001-09-20 |
Family
ID=25546097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69330309T Expired - Fee Related DE69330309T2 (de) | 1992-12-31 | 1993-12-14 | Akustisches oberflächenwellenfilter mit mehrfach-bandbreite |
Country Status (10)
Country | Link |
---|---|
US (1) | US5365207A (de) |
EP (1) | EP0634067B1 (de) |
JP (1) | JP3071826B2 (de) |
KR (1) | KR0146233B1 (de) |
CN (1) | CN1092569A (de) |
AU (1) | AU5951994A (de) |
CA (1) | CA2130088C (de) |
DE (1) | DE69330309T2 (de) |
FI (1) | FI943985A0 (de) |
WO (1) | WO1994016498A1 (de) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100207358B1 (ko) * | 1994-10-31 | 1999-07-15 | 시바타 마사하루 | 탄성 표면파 필터 장치 및 탄성 표면파 필터 장치용 트랜스듀서 |
JPH09121138A (ja) * | 1995-08-24 | 1997-05-06 | Fujitsu Ltd | フィルタ装置及びこれを用いた無線装置 |
DE19738229A1 (de) * | 1997-09-02 | 1999-03-04 | Bilz Otto Werkzeug | Werkzeug oder Werkzeughalter |
GB2346049A (en) * | 1999-01-19 | 2000-07-26 | Roke Manor Research | Duplex filtering |
KR100387212B1 (ko) * | 1999-09-21 | 2003-06-12 | 가부시키가이샤 무라타 세이사쿠쇼 | 듀플렉서 및 통신 장치 |
US20020157106A1 (en) * | 2001-04-18 | 2002-10-24 | Robert Uskali | Cable channel search systems |
US7687971B2 (en) * | 2006-08-15 | 2010-03-30 | Northrop Grumman Corporation | Electric field control of surface acoustic wave velocity |
US7656253B2 (en) | 2007-04-18 | 2010-02-02 | Northrop Grumman Space & Mission Systems Corporation | Surface acoustic wave passband control |
JP2010193351A (ja) * | 2009-02-20 | 2010-09-02 | Alps Electric Co Ltd | 高周波機器 |
US20110012696A1 (en) * | 2009-07-20 | 2011-01-20 | Sony Ericsson Mobile Communications Ab | Switched acoustic wave resonator for tunable filters |
US8466776B2 (en) * | 2010-07-01 | 2013-06-18 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Extended range passive wireless tag system and method |
US9083300B2 (en) | 2010-09-01 | 2015-07-14 | Qualcomm Mems Technologies, Inc. | Electromechanical systems piezoelectric contour mode differential resonators and filters |
DE112010005961T5 (de) * | 2010-10-28 | 2014-02-13 | Epcos Ag | Umschaltbares Filter |
CN103152011B (zh) * | 2013-03-14 | 2016-08-24 | 北京中讯四方科技股份有限公司 | 一种基于多相位倒相横向平衡式结构的声表面波滤波器 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3750027A (en) * | 1970-08-12 | 1973-07-31 | Texas Instruments Inc | Surface wave frequency discriminators |
GB1372052A (en) * | 1971-01-05 | 1974-10-30 | Mullard Ltd | Electromechanical frequency selective devices |
US4087714A (en) * | 1971-10-18 | 1978-05-02 | Hazeltine Corporation | Three phase unidirectional transducer |
US3855556A (en) * | 1973-04-02 | 1974-12-17 | Texas Instruments Inc | Selectable frequency bandpass filter |
US3831116A (en) * | 1973-04-09 | 1974-08-20 | Raytheon Co | Surface acoustic wave filter |
US4006290A (en) * | 1974-08-12 | 1977-02-01 | Gte Sylvania Incorporated | Surface wave frequency selective device |
JPS5824973B2 (ja) * | 1975-11-22 | 1983-05-24 | 松下電器産業株式会社 | ダンセイヒヨウメンハガタフイルタ |
JPS5422745A (en) * | 1977-07-22 | 1979-02-20 | Hitachi Ltd | Elastic surface wave filter |
US4207545A (en) * | 1978-08-25 | 1980-06-10 | United Technologies Corporation | Linear SAW signal processor |
US4473888A (en) * | 1981-10-28 | 1984-09-25 | The United States Of America As Represented By The Secretary Of The Army | Saw monolithic convolver using dispersive transducers |
GB2123638B (en) * | 1982-06-22 | 1986-02-26 | Clarion Co Ltd | Surface acoustic wave device |
GB2166616B (en) * | 1984-09-21 | 1989-07-19 | Clarion Co Ltd | Surface acoustic wave device |
US4622525A (en) * | 1985-07-19 | 1986-11-11 | Sawtek, Inc. | Low loss surface acoustic wave device and method |
-
1992
- 1992-12-31 US US07/999,256 patent/US5365207A/en not_active Expired - Fee Related
-
1993
- 1993-12-14 KR KR1019940703047A patent/KR0146233B1/ko not_active IP Right Cessation
- 1993-12-14 EP EP94905396A patent/EP0634067B1/de not_active Expired - Lifetime
- 1993-12-14 DE DE69330309T patent/DE69330309T2/de not_active Expired - Fee Related
- 1993-12-14 CA CA002130088A patent/CA2130088C/en not_active Expired - Fee Related
- 1993-12-14 WO PCT/US1993/012206 patent/WO1994016498A1/en active IP Right Grant
- 1993-12-14 AU AU59519/94A patent/AU5951994A/en not_active Abandoned
- 1993-12-14 JP JP6516009A patent/JP3071826B2/ja not_active Expired - Lifetime
- 1993-12-30 CN CN93121522A patent/CN1092569A/zh active Pending
-
1994
- 1994-08-31 FI FI943985A patent/FI943985A0/fi unknown
Also Published As
Publication number | Publication date |
---|---|
JPH07504558A (ja) | 1995-05-18 |
KR0146233B1 (ko) | 1998-12-01 |
EP0634067A1 (de) | 1995-01-18 |
AU5951994A (en) | 1994-08-15 |
FI943985A (fi) | 1994-08-31 |
WO1994016498A1 (en) | 1994-07-21 |
CA2130088C (en) | 1998-04-21 |
EP0634067A4 (de) | 1996-01-31 |
CN1092569A (zh) | 1994-09-21 |
EP0634067B1 (de) | 2001-06-06 |
JP3071826B2 (ja) | 2000-07-31 |
KR950700634A (ko) | 1995-01-16 |
CA2130088A1 (en) | 1994-07-21 |
DE69330309T2 (de) | 2001-09-20 |
US5365207A (en) | 1994-11-15 |
FI943985A0 (fi) | 1994-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |