KR950700634A - 다중 대역폭 표면 탄성파 필터(A multi-bandwidth SAW filter) - Google Patents
다중 대역폭 표면 탄성파 필터(A multi-bandwidth SAW filter)Info
- Publication number
- KR950700634A KR950700634A KR1019940703047A KR19940703047A KR950700634A KR 950700634 A KR950700634 A KR 950700634A KR 1019940703047 A KR1019940703047 A KR 1019940703047A KR 19940703047 A KR19940703047 A KR 19940703047A KR 950700634 A KR950700634 A KR 950700634A
- Authority
- KR
- South Korea
- Prior art keywords
- saw filter
- bandwidth saw
- bandwidth
- filter
- saw
- Prior art date
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 (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/999,256 US5365207A (en) | 1992-12-31 | 1992-12-31 | Multi-bandwidth saw filter |
US999.256 | 1992-12-31 | ||
PCT/US1993/012206 WO1994016498A1 (en) | 1992-12-31 | 1993-12-14 | A multi-bandwidth saw filter |
Publications (2)
Publication Number | Publication Date |
---|---|
KR950700634A true KR950700634A (ko) | 1995-01-16 |
KR0146233B1 KR0146233B1 (ko) | 1998-12-01 |
Family
ID=25546097
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940703047A KR0146233B1 (ko) | 1992-12-31 | 1993-12-14 | 다중 대역폭 탄성 표면파 필터 |
Country Status (10)
Country | Link |
---|---|
US (1) | US5365207A (ko) |
EP (1) | EP0634067B1 (ko) |
JP (1) | JP3071826B2 (ko) |
KR (1) | KR0146233B1 (ko) |
CN (1) | CN1092569A (ko) |
AU (1) | AU5951994A (ko) |
CA (1) | CA2130088C (ko) |
DE (1) | DE69330309T2 (ko) |
FI (1) | FI943985A (ko) |
WO (1) | WO1994016498A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100240007B1 (ko) * | 1995-08-24 | 2000-01-15 | 아끼구사 나오유끼 | 필터장치 및 이를 사용한 무선장치(filter device and dual-band radio system in which the filter device is used) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5663695A (en) * | 1994-10-31 | 1997-09-02 | Ngk Insulators, Ltd. | Surface acoustic wave filter device and transducer therefor |
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 |
US6483399B1 (en) * | 1999-09-21 | 2002-11-19 | Murata Manufacturing Co., Ltd. | Duplexer and communication apparatus with first and second filters, the second filter having plural switch selectable saw filters |
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 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 KR KR1019940703047A patent/KR0146233B1/ko not_active IP Right Cessation
- 1993-12-14 AU AU59519/94A patent/AU5951994A/en not_active Abandoned
- 1993-12-14 WO PCT/US1993/012206 patent/WO1994016498A1/en active IP Right Grant
- 1993-12-14 JP JP6516009A patent/JP3071826B2/ja not_active Expired - Lifetime
- 1993-12-14 EP EP94905396A patent/EP0634067B1/en not_active Expired - Lifetime
- 1993-12-30 CN CN93121522A patent/CN1092569A/zh active Pending
-
1994
- 1994-08-31 FI FI943985A patent/FI943985A/fi unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100240007B1 (ko) * | 1995-08-24 | 2000-01-15 | 아끼구사 나오유끼 | 필터장치 및 이를 사용한 무선장치(filter device and dual-band radio system in which the filter device is used) |
US6115592A (en) * | 1995-08-24 | 2000-09-05 | Fujitsu Limited | Filter device and dual-band radio system in which the filter device is used |
Also Published As
Publication number | Publication date |
---|---|
CN1092569A (zh) | 1994-09-21 |
KR0146233B1 (ko) | 1998-12-01 |
JP3071826B2 (ja) | 2000-07-31 |
DE69330309D1 (de) | 2001-07-12 |
JPH07504558A (ja) | 1995-05-18 |
FI943985A0 (fi) | 1994-08-31 |
CA2130088C (en) | 1998-04-21 |
EP0634067A1 (en) | 1995-01-18 |
EP0634067A4 (en) | 1996-01-31 |
AU5951994A (en) | 1994-08-15 |
WO1994016498A1 (en) | 1994-07-21 |
US5365207A (en) | 1994-11-15 |
FI943985A (fi) | 1994-08-31 |
EP0634067B1 (en) | 2001-06-06 |
DE69330309T2 (de) | 2001-09-20 |
CA2130088A1 (en) | 1994-07-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ITTO930317A0 (it) | Filtro a cartuccia | |
DE69334045D1 (de) | Faltenfilter | |
FI932661A0 (fi) | Vaerme- och fuktvaexlande filter | |
DE59301127D1 (de) | Filtervorrichtung | |
DK163989D0 (da) | Filter | |
KR950700634A (ko) | 다중 대역폭 표면 탄성파 필터(A multi-bandwidth SAW filter) | |
DE69308410D1 (de) | Filter | |
IT9048225A0 (it) | Segatrice a nastro | |
NO952358L (no) | Filtersigarett | |
FI934732A0 (fi) | Dielektrisk filter | |
DE69314580D1 (de) | Optischer Filter | |
DE69327991D1 (de) | Filter | |
NO931290D0 (no) | Optisk filter | |
DK0560503T3 (da) | Et filter | |
NO962743D0 (no) | Filteranordning | |
KR950007483U (ko) | 소우필터(SaW filter) | |
KR960025857U (ko) | 쏘우필터 | |
KR960006506U (ko) | 쏘필터 | |
KR960032923U (ko) | 쏘 필터 | |
KR950015832U (ko) | 소우필터(Saw filter)의 전극 | |
KR940002945U (ko) | 톱자루 | |
FI934413A0 (fi) | Suodatin | |
SE9203195D0 (sv) | Filter | |
SE9200651D0 (sv) | Filtersanerare | |
DK107592D0 (da) | Filter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
LAPS | Lapse due to unpaid annual fee |