DE69432134D1 - Akustisches Oberflächenwellenfilter - Google Patents

Akustisches Oberflächenwellenfilter

Info

Publication number: DE69432134D1
Authority: DE; Germany
Prior art keywords: wave filter; surface wave; acoustic surface; acoustic; filter
Prior art date: 1993-08-04
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

Application number

DE69432134T

Other languages

English (en)

Other versions

DE69432134T2 (de

Inventor

Dongpei Chen

Clinton S Hartmann

Serguei Kondratiev

Victor Plessky

Mohammed A Sharif

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.)

TDK Electronics AG

Original Assignee

Tekelec Temex

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.)

1993-08-04

Filing date

1994-07-20

Publication date

2003-03-27

1994-07-20 Application filed by Tekelec Temex filed Critical Tekelec Temex

2003-03-27 Publication of DE69432134D1 publication Critical patent/DE69432134D1/de

2003-10-09 Application granted granted Critical

2003-10-09 Publication of DE69432134T2 publication Critical patent/DE69432134T2/de

2014-07-21 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- H03H9/6483—Ladder SAW filters
- 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
- H03H9/6493—Side lobe suppression

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

DE69432134T 1993-08-04 1994-07-20 Akustisches Oberflächenwellenfilter Expired - Lifetime DE69432134T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB9316142A GB2280807B (en)	1993-08-04	1993-08-04	Saw filter

Publications (2)

Publication Number	Publication Date
DE69432134D1 true DE69432134D1 (de)	2003-03-27
DE69432134T2 DE69432134T2 (de)	2003-10-09

Family

ID=10739946

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69432134T Expired - Lifetime DE69432134T2 (de)	1993-08-04	1994-07-20	Akustisches Oberflächenwellenfilter

Country Status (5)

Country	Link
US (1)	US5610566A (de)
EP (1)	EP0637873B1 (de)
JP (1)	JPH0766677A (de)
DE (1)	DE69432134T2 (de)
GB (1)	GB2280807B (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2312109B (en) *	1996-03-29	2000-08-02	Advanced Saw Prod Sa	Acoustic wave filter
DE69722168T2 (de) *	1997-02-12	2003-12-18	Oki Electric Ind Co Ltd	Akustische Oberflächenwellenfilter mit erzeugten Dämpfungspolen durch Impedanzschaltungen
US5933062A (en) *	1997-11-04	1999-08-03	Motorola Inc.	Acoustic wave ladder filter with effectively increased coupling coefficient and method of providing same
JP3371849B2 (ja) *	1999-04-28	2003-01-27	株式会社村田製作所	Ｓａｗ共振子、複合ｓａｗフィルタ及びｓａｗフィルタ
FI116188B (fi) *	1999-06-08	2005-09-30	Valtion Teknillinen	Menetelmä ja laitteisto kohteiden sähkömagneettisen energian muuttamiseksi
DE10007178A1 (de) *	2000-02-17	2001-08-23	Epcos Ag	Oberflächenwellenfilter mit Reaktanzelementen
JP3467472B2 (ja) *	2000-11-15	2003-11-17	富士通株式会社	弾性表面波フィルタ
US6861927B1 (en)	2001-04-27	2005-03-01	Sawtek, Inc.	Longitudinally coupled leaky surface acoustic wave resonator filter
US6798318B1 (en)	2001-04-27	2004-09-28	Sawtek, Inc.	Hybrid leaky surface acoustic wave resonator filter
US20030016735A1 (en) *	2001-07-23	2003-01-23	Edmonson Peter J.	Communication system for two-way exchange of information
US6710677B2 (en) *	2002-02-12	2004-03-23	Nortel Networks Limited	Band reject filters
US6924715B2 (en) *	2002-02-12	2005-08-02	Nortel Networks Limited	Band reject filters
DE102009002497B4 (de)	2009-04-20	2011-06-16	Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V.	Verfahren zur Ermittlung elektrischer und mechanischer Materialeigenschaften

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4006290A (en) *	1974-08-12	1977-02-01	Gte Sylvania Incorporated	Surface wave frequency selective device
US4166258A (en) *	1974-08-29	1979-08-28	International Business Machines Corporation	Thin-film integrated circuit with tank circuit characteristics and applications to thin-film filters and oscillators
JPS51142943A (en) *	1975-06-03	1976-12-08	Nippon Telegr & Teleph Corp <Ntt>	Elastic surface-wave filter
JPS5219044A (en) *	1975-08-04	1977-01-14	Nippon Telegr & Teleph Corp <Ntt>	Surface acoustic wave filter
JPS5997216A (ja) *	1982-11-26	1984-06-05	Nec Corp	弾性表面波フイルタ
US4785270A (en) *	1987-12-30	1988-11-15	Motorola Inc.	Monolithic lattice saw filter
JPH03222511A (ja) *	1990-01-29	1991-10-01	Oki Electric Ind Co Ltd	Ｓａｗ共振器フィルタ
JP2888493B2 (ja) *	1990-06-21	1999-05-10	株式会社村田製作所	縦型２重モード弾性表面波フィルタ
US5093638A (en) *	1990-11-05	1992-03-03	Motorola, Inc.	Unbalanced saw filter
JP2800905B2 (ja) *	1991-10-28	1998-09-21	富士通株式会社	弾性表面波フィルタ
US5254962A (en) *	1992-06-19	1993-10-19	Motorola, Inc.	Combined acoustic wave device and ceramic block filter structure
EP0600705B1 (de) *	1992-12-01	1999-01-20	Japan Radio Co., Ltd	Akustischer Oberflächenwellenfilter und mobiles Kommunikationssystem mit solchem Filter
JP3139225B2 (ja) *	1993-07-08	2001-02-26	株式会社村田製作所	弾性表面波フィルタ
JP3189508B2 (ja) *	1993-07-08	2001-07-16	株式会社村田製作所	弾性表面波フィルタ

1993
- 1993-08-04 GB GB9316142A patent/GB2280807B/en not_active Expired - Fee Related
1994
- 1994-07-20 DE DE69432134T patent/DE69432134T2/de not_active Expired - Lifetime
- 1994-07-20 EP EP94305351A patent/EP0637873B1/de not_active Expired - Lifetime
- 1994-07-26 US US08/280,607 patent/US5610566A/en not_active Expired - Lifetime
- 1994-08-04 JP JP6183264A patent/JPH0766677A/ja active Pending

Also Published As

Publication number	Publication date
EP0637873A2 (de)	1995-02-08
GB2280807B (en)	1997-10-22
GB9316142D0 (en)	1993-09-22
EP0637873B1 (de)	2003-02-19
DE69432134T2 (de)	2003-10-09
JPH0766677A (ja)	1995-03-10
GB2280807A (en)	1995-02-08
EP0637873A3 (de)	1995-07-05
US5610566A (en)	1997-03-11

Publication	Publication Date	Title
DE69424737D1 (de)	2000-07-06	Akustisches Oberflächenwellenfilter
DE69403281D1 (de)	1997-06-26	Akustisches Oberflächenwellenfilter
DE69408048D1 (de)	1998-02-26	Akustisches Oberflächenwellenfilter
DE69412424D1 (de)	1998-09-17	Akustisches Oberflächenwellenfilter
DE69533389D1 (de)	2004-09-23	Akustisches Oberflächenwellenfilter
DE69216769D1 (de)	1997-02-27	Akustischer Oberflächenwellenfilter
DE69506138D1 (de)	1999-01-07	Akustisches Oberflächenwellenfilter
DE69317026D1 (de)	1998-03-26	Akustisches Oberflächenwellen Bauelement
DE69619741D1 (de)	2002-04-18	Akustisches Oberflächenwellenfilter
DE69513904D1 (de)	2000-01-20	Akustische Oberflächenwellenanordnung
KR970703063A (ko)	1997-06-10	탄성표면파필터
DE69620524D1 (de)	2002-05-16	Oberflächenwellenfilter
DE69835987D1 (de)	2006-11-09	Akustische Oberflächenwellenfilter
DE69636897D1 (de)	2007-03-29	Akustischer Oberflächenwellenfilter
DE69316786D1 (de)	1998-03-12	Elastische Oberflächenwellenfilter
DE69319977D1 (de)	1998-09-03	Akustisches Oberflächenwellenresonatorfilter
DE69607510D1 (de)	2000-05-11	Akustisches Oberflächenwellenresonatorfilter
DE69321799D1 (de)	1998-12-03	Akustische Oberflächenwellenanordnung
DE69522066D1 (de)	2001-09-13	Akustische Oberflächenwellenanordnung
DE69305758D1 (de)	1996-12-12	Akustische Oberflächenwellenanordnung
DE69100625D1 (de)	1993-12-16	Akustische oberflächenwellenfilter.
DE69321860D1 (de)	1998-12-10	Akustische Oberflächenwellenanordnung
DE69713370D1 (de)	2002-07-18	Akustische oberflächenwellenfilter
DE69506137D1 (de)	1999-01-07	Akustisches Oberflächenwellenfilter
DE69432134D1 (de)	2003-03-27	Akustisches Oberflächenwellenfilter

Legal Events

Date	Code	Title	Description
2004-03-18	8364	No opposition during term of opposition
2007-11-29	8328	Change in the person/name/address of the agent	Representative=s name: EPPING HERMANN FISCHER, PATENTANWALTSGESELLSCHAFT
2008-05-15	8327	Change in the person/name/address of the patent owner	Owner name: ALEX TEMEX MULTIMEDIA, SEVRES, FR
2008-05-15	8328	Change in the person/name/address of the agent	Representative=s name: DERZEIT KEIN VERTRETER BESTELLT
2008-06-26	8327	Change in the person/name/address of the patent owner	Owner name: TEMEX, SOPHIA ANTIPOLIS, FR
2009-10-22	8327	Change in the person/name/address of the patent owner	Owner name: EPCOS AG, 81669 MUENCHEN, DE