ES2063378T3 - Filtro reflector de ondas superficiales. - Google Patents
Filtro reflector de ondas superficiales.Info
- Publication number
- ES2063378T3 ES2063378T3 ES90916031T ES90916031T ES2063378T3 ES 2063378 T3 ES2063378 T3 ES 2063378T3 ES 90916031 T ES90916031 T ES 90916031T ES 90916031 T ES90916031 T ES 90916031T ES 2063378 T3 ES2063378 T3 ES 2063378T3
- Authority
- ES
- Spain
- Prior art keywords
- pct
- date
- surface wave
- wave reflector
- sec
- 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
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
- H03H9/6489—Compensation of undesirable effects
-
- 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
- H03H9/02834—Means for compensation or elimination of undesirable effects of temperature influence
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
- Aerials With Secondary Devices (AREA)
- Television Systems (AREA)
- Optical Filters (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
LA INVENCION SE REFIERE A UN FILTRO DE ONDAS SUPERFICIALES CON REFLEJO DE LA TRAYECTORIA (5,7) DE LAS ONDAS ACUSTICAS PARA LA REDUCCION DE LAS DIMENSIONES DEL SUBSTRATO (2). LOS REFLEJOS ESTAN ELEGIDOS DE TAL MODO QUE ESTAN EXCLUIDAS INFLUENCIAS PERTURBADORAS DEBIDAS A LA TEMPERATURA. MEDIANTE EL EMPLEO DE UN FILTRO DE ESTA CLASE COMO FILTRO PARCIAL DE UN FILTRO COMBINADO SE PUEDE MEJORAR AUN MAS LA DIAFONIA.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893937871 DE3937871A1 (de) | 1989-11-14 | 1989-11-14 | Oberflaechenwellen-reflektorfilter |
DE19904018784 DE4018784A1 (de) | 1990-06-12 | 1990-06-12 | Oberflaechenwellen-reflektorfilter |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2063378T3 true ES2063378T3 (es) | 1995-01-01 |
Family
ID=25887058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90916031T Expired - Lifetime ES2063378T3 (es) | 1989-11-14 | 1990-11-14 | Filtro reflector de ondas superficiales. |
Country Status (9)
Country | Link |
---|---|
US (1) | US5365206A (es) |
EP (1) | EP0571365B1 (es) |
JP (1) | JP3137642B2 (es) |
AT (1) | ATE113425T1 (es) |
CA (1) | CA2068531A1 (es) |
DE (1) | DE59007583D1 (es) |
ES (1) | ES2063378T3 (es) |
FI (1) | FI922183A0 (es) |
WO (1) | WO1991007818A1 (es) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2036950B1 (es) * | 1991-11-28 | 1996-02-16 | Alcatel Standard Electrica | Filtro de ondas acusticas superficiales resonante de bajas perdidas utilizando acoplador-reflector multistrip |
DE4431612C2 (de) * | 1993-09-06 | 1998-07-16 | Sanyo Electric Co | Akustisches Oberflächenwellenfilter |
US5646584A (en) * | 1994-04-25 | 1997-07-08 | Advanced Saw Products Sa | Saw filter including electrodes of opposing polarity |
US5986382A (en) | 1997-08-18 | 1999-11-16 | X-Cyte, Inc. | Surface acoustic wave transponder configuration |
JP3315646B2 (ja) * | 1998-06-19 | 2002-08-19 | 富士通株式会社 | 弾性表面波フィルタ |
JP2001136048A (ja) | 1999-11-09 | 2001-05-18 | Nec Corp | 弾性表面波フィルタ |
TW498614B (en) * | 1999-12-09 | 2002-08-11 | Matsushita Electric Ind Co Ltd | Elastic surface wave device and communications equipment using the elastic surface wave device |
JP2001308675A (ja) * | 2000-04-26 | 2001-11-02 | Murata Mfg Co Ltd | 表面波フィルタ及び共用器、通信機装置 |
DE10113788A1 (de) | 2001-03-21 | 2002-09-26 | Zeiss Carl | Beugungsoptische Komponente, Beleuchtungssystem und Belichtungssystem mit einer solchen beugungsoptischen Komponente und Belichtungsverfahren unter Verwendung eines solchen Belichtungssystems |
US6836197B2 (en) * | 2003-02-28 | 2004-12-28 | Northrop Grumman Corporation | Dual track SAW reflector filter using weighted reflective gratings |
US6842091B2 (en) * | 2003-02-28 | 2005-01-11 | Northrop Grumman Corporation | Weighted SAW reflector grating using dithered acoustic reflectors |
DE102006039515B4 (de) * | 2006-08-23 | 2012-02-16 | Epcos Ag | Drehbewegungssensor mit turmartigen Schwingstrukturen |
DE102006048879B4 (de) * | 2006-10-16 | 2018-02-01 | Snaptrack, Inc. | Elektroakustisches Bauelement |
WO2014054269A1 (ja) | 2012-10-01 | 2014-04-10 | パナソニック株式会社 | 弾性波素子とこれを用いた弾性波センサ |
US9331669B2 (en) | 2014-07-25 | 2016-05-03 | Resonant Inc. | High rejection surface acoustic wave duplexer |
US9077312B1 (en) * | 2014-07-25 | 2015-07-07 | Resonant Inc. | High rejection surface acoustic wave filter |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3559115A (en) * | 1968-02-28 | 1971-01-26 | Zenith Radio Corp | Surface-wave filter reflection cancellation |
US3983517A (en) * | 1974-12-20 | 1976-09-28 | Hughes Aircraft Company | Surface acoustic wave multi-channel filter |
US4166228A (en) * | 1978-03-17 | 1979-08-28 | Sperry Rand Corporation | Temperature compensated reflective array for surface acoustic wave processing |
US4206426A (en) * | 1978-11-29 | 1980-06-03 | Sperry Corporation | Multiple pole surface wave acoustic filters employing angled grooved distributed reflector arrays |
JPS5669919A (en) * | 1979-11-09 | 1981-06-11 | Seiko Epson Corp | Surface elastic wave filter |
US4319154A (en) * | 1979-12-26 | 1982-03-09 | Sperry Corporation | Temperature insensitive reflective array S.A.W. device |
JPS5758408A (en) * | 1980-09-26 | 1982-04-08 | Fujitsu Ltd | Surface elastic wave filter |
US4331943A (en) * | 1980-12-22 | 1982-05-25 | Hewlett-Packard Company | Acoustic wave devices having transverse mode distortions eliminated structurally |
DE3209962A1 (de) * | 1982-03-18 | 1983-09-29 | Siemens AG, 1000 Berlin und 8000 München | Mit akustischen wellen arbeitendes elektronisches bauelement |
DE3230038A1 (de) * | 1982-08-12 | 1984-02-16 | Siemens AG, 1000 Berlin und 8000 München | Mit reflektierten akustischen wellen arbeitendes elektronisches bauelement |
JPS59122109A (ja) * | 1982-12-28 | 1984-07-14 | Nec Corp | エラステイツク・コンボルバ |
JPS59139714A (ja) * | 1984-01-20 | 1984-08-10 | Sony Corp | 表面波素子 |
WO1986001655A1 (en) * | 1984-09-03 | 1986-03-13 | Epprecht, Georg | Converter for surface-acoustic waves (saw) |
-
1990
- 1990-11-14 ES ES90916031T patent/ES2063378T3/es not_active Expired - Lifetime
- 1990-11-14 AT AT90916031T patent/ATE113425T1/de not_active IP Right Cessation
- 1990-11-14 WO PCT/DE1990/000876 patent/WO1991007818A1/de active IP Right Grant
- 1990-11-14 EP EP90916031A patent/EP0571365B1/de not_active Expired - Lifetime
- 1990-11-14 JP JP02514710A patent/JP3137642B2/ja not_active Expired - Fee Related
- 1990-11-14 CA CA002068531A patent/CA2068531A1/en not_active Abandoned
- 1990-11-14 DE DE59007583T patent/DE59007583D1/de not_active Expired - Lifetime
- 1990-11-14 US US07/856,044 patent/US5365206A/en not_active Expired - Lifetime
-
1992
- 1992-05-13 FI FI922183A patent/FI922183A0/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
FI922183A (fi) | 1992-05-13 |
US5365206A (en) | 1994-11-15 |
JPH05501486A (ja) | 1993-03-18 |
JP3137642B2 (ja) | 2001-02-26 |
FI922183A0 (fi) | 1992-05-13 |
EP0571365B1 (de) | 1994-10-26 |
WO1991007818A1 (de) | 1991-05-30 |
ATE113425T1 (de) | 1994-11-15 |
CA2068531A1 (en) | 1991-05-15 |
EP0571365A1 (de) | 1993-12-01 |
DE59007583D1 (de) | 1994-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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