CA2015227A1 - Filtre a ondes acoustiques de surface - Google Patents

Filtre a ondes acoustiques de surface

Info

Publication number: CA2015227A1
Authority: CA; Canada
Prior art keywords: interdigital transducers; input; output; wave filter; elastic wave
Prior art date: 1989-04-25
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.): Granted

Application number

CA2015227A

Other languages

English (en)

Other versions

CA2015227C (fr

Inventor

Hiromi Yatsuda

Yoshihiko Takeuchi

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.)

Nihon Musen KK

Original Assignee

Nihon Musen KK

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.)

1989-04-25

Filing date

1990-04-24

Publication date

1990-10-25

1990-04-24 Application filed by Nihon Musen KK filed Critical Nihon Musen KK

1990-10-25 Publication of CA2015227A1 publication Critical patent/CA2015227A1/fr

1994-01-25 Application granted granted Critical

1994-01-25 Publication of CA2015227C publication Critical patent/CA2015227C/fr

2010-04-24 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 elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/64—Filters using surface acoustic waves
- H03H9/6423—Means for obtaining a particular transfer characteristic
- H03H9/6426—Combinations of the characteristics of different transducers

Landscapes

Physics & Mathematics (AREA)
Acoustics & Sound (AREA)
Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Superheterodyne Receivers (AREA)
Pens And Brushes (AREA)
Absorbent Articles And Supports Therefor (AREA)
Filtering Materials (AREA)

CA002015227A 1989-04-25 1990-04-24 Filtre a ondes acoustiques de surface Expired - Lifetime CA2015227C (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP1-106936		1989-04-25
JP1106936A JP2601543B2 (ja)	1989-04-25	1989-04-25	弾性表面波フィルタ

Publications (2)

Publication Number	Publication Date
CA2015227A1 true CA2015227A1 (fr)	1990-10-25
CA2015227C CA2015227C (fr)	1994-01-25

Family

ID=14446279

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002015227A Expired - Lifetime CA2015227C (fr)	1989-04-25	1990-04-24	Filtre a ondes acoustiques de surface

Country Status (10)

Country	Link
US (1)	US5175519A (fr)
JP (1)	JP2601543B2 (fr)
KR (1)	KR950000082B1 (fr)
CA (1)	CA2015227C (fr)
DE (1)	DE4013214C2 (fr)
ES (1)	ES2021524A6 (fr)
FR (1)	FR2646300B1 (fr)
GB (1)	GB2232546B (fr)
IT (1)	IT1239726B (fr)
SE (1)	SE512480C2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH04138710A (ja) *	1990-09-28	1992-05-13	Nec Corp	弾性表面波フィルタ
EP0508325A1 (fr) *	1991-04-11	1992-10-14	SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG	Ligne à retard réflective à ondes acoustiques de surface
DE4227340C2 (de) *	1991-08-22	1995-09-21	Hitachi Ltd	Oberflächenwellen-Bauelement
US5666091A (en) *	1995-03-20	1997-09-09	Hitachi Media Electronics Co., Ltd.	Structure of surface acoustic wave filter
GB2312110B (en) *	1996-03-29	2000-07-05	Advanced Saw Prod Sa	Acoustic wave filter
JPH10190394A (ja) *	1996-12-25	1998-07-21	Murata Mfg Co Ltd	弾性表面波共振子フィルタ
EP1249934B1 (fr) *	2001-04-09	2013-07-31	Murata Manufacturing Co., Ltd.	Appareil à ondes acoustiques de surface et unité de communication
KR100616655B1 (ko) *	2005-01-03	2006-08-28	삼성전기주식회사	안티 퓨즈를 이용한 표면탄성파 소자의 ｉｄｔ 전극패턴의 형성 방법 및 이에 의해 제조된 표면탄성파 소자
KR100698288B1 (ko) *	2005-02-04	2007-03-22	삼성전자주식회사	프로그래밍 가능한 표면탄성파 필터
RU2610415C1 (ru) *	2015-10-29	2017-02-10	Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом"	Многоканальная отражательная линия задержки

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3946342A (en) *	1973-08-10	1976-03-23	Texas Instruments Incorporated	Weighting surface wave filters by withdrawing electrodes
JPS553281A (en) *	1978-06-22	1980-01-11	Matsushita Electric Ind Co Ltd	Elastic surface wave filter
JPS5573123A (en) *	1978-11-27	1980-06-02	Toshiba Corp	Elastic surface wave filter
US4321567A (en) *	1980-03-24	1982-03-23	Raytheon Company	Combining series sections weighting with withdrawal weighting in SAW transducers
JPS56149818A (en) *	1980-04-23	1981-11-19	Hitachi Ltd	Elastic surface wave device
EP0057555B1 (fr) *	1981-02-04	1985-11-27	Matsushita Electric Industrial Co., Ltd.	Dispositif à ondes acoustiques de surface
JPS58154917A (ja) *	1982-03-10	1983-09-14	Hitachi Ltd	弾性表面波バンドパスフイルタ
JPS595729A (ja) *	1982-07-01	1984-01-12	Nec Corp	弾性表面波フイルタ
JPS5933920A (ja) *	1982-08-20	1984-02-24	Hitachi Ltd	弾性表面波バンドパス・フイルタ
US4491758A (en) *	1983-05-03	1985-01-01	R F Monolithics, Inc.	Surface wave device with oversampled withdrawal weighting
JPH0815248B2 (ja) *	1983-05-30	1996-02-14	松下電器産業株式会社	弾性表面波装置
US4600852A (en) *	1984-10-30	1986-07-15	Massachusetts Institute Of Technology	Wide bandwidth withdrawal weighted surface acoustic wave filters
JPS61252704A (ja) *	1985-05-01	1986-11-10	Hitachi Ltd	弾性表面波フイルタ
CA1271817A (fr) *	1986-07-16	1990-07-17	Hiromi Yatsuda	Filtre a ondes elastiques de surface
JPS63253712A (ja) *	1987-04-10	1988-10-20	Hitachi Ltd	弾性表面波バンドパスフイルタ
JPS63304707A (ja) *	1987-06-05	1988-12-13	Japan Radio Co Ltd	弾性表面波フィルタ

1989
- 1989-04-25 JP JP1106936A patent/JP2601543B2/ja not_active Expired - Lifetime
1990
- 1990-04-18 US US07/510,604 patent/US5175519A/en not_active Expired - Lifetime
- 1990-04-23 GB GB9009044A patent/GB2232546B/en not_active Expired - Lifetime
- 1990-04-24 ES ES9001154A patent/ES2021524A6/es not_active Expired - Lifetime
- 1990-04-24 IT IT20124A patent/IT1239726B/it active IP Right Grant
- 1990-04-24 SE SE9001471A patent/SE512480C2/sv not_active IP Right Cessation
- 1990-04-24 CA CA002015227A patent/CA2015227C/fr not_active Expired - Lifetime
- 1990-04-24 FR FR9005195A patent/FR2646300B1/fr not_active Expired - Lifetime
- 1990-04-25 KR KR1019900005837A patent/KR950000082B1/ko not_active IP Right Cessation
- 1990-04-25 DE DE4013214A patent/DE4013214C2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
CA2015227C (fr)	1994-01-25
DE4013214A1 (de)	1990-10-31
SE9001471D0 (sv)	1990-04-24
US5175519A (en)	1992-12-29
KR950000082B1 (ko)	1995-01-09
FR2646300B1 (fr)	1995-03-17
IT9020124A0 (it)	1990-04-24
GB9009044D0 (en)	1990-06-20
FR2646300A1 (fr)	1990-10-26
IT1239726B (it)	1993-11-15
GB2232546A (en)	1990-12-12
KR900017280A (ko)	1990-11-15
SE512480C2 (sv)	2000-03-20
JPH02284511A (ja)	1990-11-21
JP2601543B2 (ja)	1997-04-16
DE4013214C2 (de)	1996-01-18
ES2021524A6 (es)	1991-11-01
GB2232546B (en)	1993-07-07
IT9020124A1 (it)	1991-10-24
SE9001471L (sv)	1990-10-26

Publication	Publication Date	Title
EP0396123A3 (fr)	1990-12-12	Filtre passe-bande à plusieurs étages reliés en parallèle
GB1529942A (en)	1978-10-25	Electrical filters including coupled resonators
CA2015227A1 (fr)	1990-10-25	Filtre a ondes acoustiques de surface
EP0196770B1 (fr)	1991-01-30	Filtre à ondes acoustiques de surface
JPS6423612A (en)	1989-01-26	Elastic surface wave device
GB1530665A (en)	1978-11-01	Acoustic wave devices
US4160219A (en)	1979-07-03	Transducer electrodes for filters or delay lines utilizing surface wave principles
EP0936735A3 (fr)	2001-01-03	Filtre à ondes acoustiques de surface
JPS56132807A (en)	1981-10-17	Surface wave circuit equipment
GB1512790A (en)	1978-06-01	Acoustic surface wave devices
JPS553281A (en)	1980-01-11	Elastic surface wave filter
CA2139763A1 (fr)	1994-01-20	Circuit de filtres en ceramique piezoelectrique, et filtre de ce type
CA2101344A1 (fr)	1994-06-24	Methode et appareil pour regler l'impedance d'une ligne de transmission a microruban
EP0307196A3 (fr)	1990-02-28	Structures magnétostatiques couplées par le bord
US4600852A (en)	1986-07-15	Wide bandwidth withdrawal weighted surface acoustic wave filters
EP0208441A3 (fr)	1988-08-03	Atténuateur à hautes fréquences commutable
EP0840446A3 (fr)	2000-05-10	Filtre unidirectionnel à ondes acoustiques de surface
GB1396856A (en)	1975-06-11	Acoustic surface-wave devices
GB1433398A (en)	1976-04-28	Acoustic surface-wave devices
DE2235233B2 (de)	1977-07-14	Filter oder verzoegerungsleitung nach dem oberflaechenwellenprinzip
JPS6479732A (en)	1989-03-24	Crossed comb type electrode pair
CA2070811A1 (fr)	1991-06-07	Filtre transversal et methode de mise en forme d'ondes utilisant ce filtre pour la transmission de donnees via un cable coaxial
GB1499774A (en)	1978-02-01	Filter chain
JPS5417656A (en)	1979-02-09	Frequency discriminator
BULIUK	1985	Low-loss SAW bandpass filter(Polosovoi fil'tr na pav s malymi poteriami)

Legal Events

Date	Code	Title	Description
1990-04-24	EEER	Examination request
2010-04-24	MKEX	Expiry