DE69102638D1 - Oberflächenwellenfilter mit niedrigem verlust. - Google Patents

Oberflächenwellenfilter mit niedrigem verlust.

Info

Publication number: DE69102638D1
Authority: DE; Germany
Prior art keywords: wave filter; surface wave; low loss; loss; low
Prior art date: 1990-04-24
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

Application number

DE69102638T

Other languages

English (en)

Other versions

DE69102638T2 (de

Inventor

Pierre Dufilie

Jean-Michel Hode

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Thales SA

Original Assignee

Thomson CSF SA

Priority date (The priority date 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 date listed.)

1990-04-24

Filing date

1991-04-12

Publication date

1994-07-28

1991-04-12 Application filed by Thomson CSF SA filed Critical Thomson CSF SA

1994-07-28 Application granted granted Critical

1994-07-28 Publication of DE69102638D1 publication Critical patent/DE69102638D1/de

1994-10-06 Publication of DE69102638T2 publication Critical patent/DE69102638T2/de

2011-04-13 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6433—Coupled resonator filters
- H03H9/644—Coupled resonator filters having two acoustic tracks
- H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
- H03H9/6459—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode
- H03H9/6463—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode the tracks being electrically cascaded
- H03H9/6466—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode the tracks being electrically cascaded each track containing more than two 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
- H03H9/02—Details
- H03H9/02535—Details of surface acoustic wave devices
- H03H9/02637—Details concerning reflective or coupling arrays
- H03H9/02685—Grating lines having particular arrangements
- H03H9/02692—Arched grating lines
- H03H9/027—U-shaped grating lines
- 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
- H03H9/02921—Measures for preventing electric discharge due to pyroelectricity
- 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
- H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
- H03H9/14505—Unidirectional SAW 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
- H03H9/6433—Coupled resonator filters

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)

DE69102638T 1990-04-24 1991-04-12 Oberflächenwellenfilter mit niedrigem verlust. Expired - Fee Related DE69102638T2 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR9005189A FR2661292B1 (fr)	1990-04-24	1990-04-24	Filtre a ondes de surface et a faibles pertes.
PCT/FR1991/000308 WO1991016763A1 (fr)	1990-04-24	1991-04-12	Filtre a ondes de surface et a faibles pertes

Publications (2)

Publication Number	Publication Date
DE69102638D1 true DE69102638D1 (de)	1994-07-28
DE69102638T2 DE69102638T2 (de)	1994-10-06

Family

ID=9396016

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69102638T Expired - Fee Related DE69102638T2 (de)	1990-04-24	1991-04-12	Oberflächenwellenfilter mit niedrigem verlust.

Country Status (7)

Country	Link
US (1)	US5307035A (de)
EP (1)	EP0526589B1 (de)
JP (1)	JP3174052B2 (de)
CA (1)	CA2080007C (de)
DE (1)	DE69102638T2 (de)
FR (1)	FR2661292B1 (de)
WO (1)	WO1991016763A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5793266A (en) *	1996-08-12	1998-08-11	Motorola Inc.	Differential input and/or differential output, transversely-coupled surface acoustic wave filter
FR2762458B1 (fr) *	1997-04-18	1999-07-09	Thomson Csf	Dispositif a ondes acoustiques de surface a couplage par proximite a entrees/sorties differentielles
FR2782568B1 (fr)	1998-08-21	2001-08-10	Thomson Csf	Filtre acoustique a deux canaux differents a compensation de rejection
JP2004297619A (ja) *	2003-03-27	2004-10-21	Kyocera Corp	弾性表面波装置
DE102005032058B4 (de) *	2005-07-08	2016-12-29	Epcos Ag	HF-Filter mit verbesserter Gegenbandunterdrückung
DE102006042616B4 (de) *	2006-09-04	2008-07-03	Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V.	Wellenleiterbauelemente auf der Grundlage akustischer Oberflächenwellen und deren Verwendung
US7994876B2 (en) *	2008-07-23	2011-08-09	Hamilton Sundstrand Corporation	Lightweight electromagnetic interference filter
JP4760931B2 (ja) *	2009-03-02	2011-08-31	株式会社デンソー	弾性表面波素子
JP7086592B2 (ja)	2016-12-21	2022-06-20	スカイワークスソリューションズ，インコーポレイテッド	過温度保護を備えた無線周波数システム、弾性表面波フィルタ及びパッケージ状モジュール

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2157522B (en) *	1984-04-09	1987-08-19	Philips Electronic Associated	Electrical filter comprising an acoustic surface wave device, and method of manufacturing such a filter

1990
- 1990-04-24 FR FR9005189A patent/FR2661292B1/fr not_active Expired - Fee Related
1991
- 1991-04-12 WO PCT/FR1991/000308 patent/WO1991016763A1/fr active IP Right Grant
- 1991-04-12 US US07/927,267 patent/US5307035A/en not_active Expired - Fee Related
- 1991-04-12 CA CA002080007A patent/CA2080007C/fr not_active Expired - Fee Related
- 1991-04-12 EP EP91919033A patent/EP0526589B1/de not_active Expired - Lifetime
- 1991-04-12 DE DE69102638T patent/DE69102638T2/de not_active Expired - Fee Related
- 1991-04-12 JP JP50848991A patent/JP3174052B2/ja not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0526589A1 (de)	1993-02-10
US5307035A (en)	1994-04-26
JP3174052B2 (ja)	2001-06-11
DE69102638T2 (de)	1994-10-06
FR2661292A1 (fr)	1991-10-25
FR2661292B1 (fr)	1995-07-21
JPH05507591A (ja)	1993-10-28
CA2080007C (fr)	2001-12-18
WO1991016763A1 (fr)	1991-10-31
EP0526589B1 (de)	1994-06-22
CA2080007A1 (fr)	1991-10-25

Publication	Publication Date	Title
DE69121151D1 (de)	1996-09-05	Filter mit Tiefenwirkung
FI890129A0 (fi)	1989-01-11	Intravenoest filter.
DE69110849D1 (de)	1995-08-03	Infusionsfilter.
DE68914779D1 (de)	1994-05-26	Akustische Oberflächenwellenfilteranordnung.
DE68916308D1 (de)	1994-07-28	Akustisches Oberflächenwellenfilter.
DE69203722D1 (de)	1995-08-31	Filter mit delta-förmig gefalteten filtermaterial.
FI914362A (fi)	1992-03-19	Digitalt filter och flerkanaldecimator.
DE68918918D1 (de)	1994-11-24	Mikrowellenfilter.
DE59008261D1 (de)	1995-02-23	Medianfilter.
DE69123620D1 (de)	1997-01-30	Akustischer Oberflächenwellenfilter mit mehreren Elektroden
DE69100625D1 (de)	1993-12-16	Akustische oberflächenwellenfilter.
DE69330309D1 (de)	2001-07-12	Akustisches oberflächenwellenfilter mit mehrfach-bandbreite
DE69102638D1 (de)	1994-07-28	Oberflächenwellenfilter mit niedrigem verlust.
DE69101610D1 (de)	1994-05-11	Filterreinigung.
DE69104167D1 (de)	1994-10-27	Frequenzvervielfacher mit niedrigem Rauschen.
DE59006918D1 (de)	1994-09-29	Webschaft mit lösbaren eckverbindungen.
DE58903754D1 (de)	1993-04-15	Oberflaechenwellenfilter.
DE3863505D1 (de)	1991-08-08	Halbwellenfilter mit seitenkupplung.
DE69110482D1 (de)	1995-07-27	Magnetostatische Wellenanordnung.
FI914289A0 (fi)	1991-09-12	Mesogeniska glysidylestrar.
DE59010646D1 (de)	1997-03-20	Oberflächenwellen-Resonator
DE4293613T1 (de)	1993-11-18	Bandfilter mit akustischer Flächenwelle
FI891851A0 (fi)	1989-04-18	Rengoerings-/avskiljningsapparat foer filter i vaot- och torrsugare.
DE59009249D1 (de)	1995-07-20	Webschaft mit lösbaren eckverbindungen.
DE69103326D1 (de)	1994-09-15	Filteranordnungen.

Legal Events

Date	Code	Title
1995-07-20	8364	No opposition during term of opposition
2000-03-16	8320	Willingness to grant licences declared (paragraph 23)
2006-02-09	8339	Ceased/non-payment of the annual fee