ES2021524A6 - Filtro elastico de ondas de superficie. - Google Patents
Filtro elastico de ondas de superficie.Info
- Publication number
- ES2021524A6 ES2021524A6 ES9001154A ES9001154A ES2021524A6 ES 2021524 A6 ES2021524 A6 ES 2021524A6 ES 9001154 A ES9001154 A ES 9001154A ES 9001154 A ES9001154 A ES 9001154A ES 2021524 A6 ES2021524 A6 ES 2021524A6
- Authority
- ES
- Spain
- Prior art keywords
- transducers
- wave filter
- elastic wave
- interdigital transducers
- input
- 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
-
- 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
- H03H9/6426—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)
- Filtering Materials (AREA)
- Pens And Brushes (AREA)
- Absorbent Articles And Supports Therefor (AREA)
Abstract
FILTRO ELASTICO DE ONDAS DE SUPERFICIE QUE INCLUYE UNA PLURALIDAD DE TRANSDUCTORES INTERDIGITALES PARA RECIBIR UNA SEÑAL DE ENTRADA DE ALTA FRECUENCIA, Y UNA PLURALIDAD DE TRANSDUCTORES INTERDIGITALES DE SALIDA PARA GENERAR UNA SEÑAL DE SALIDA DERIVADA DE LA SEÑAL DE ENTRADA Y QUE TIENE CARACTERISTICAS DE FRECUENCIA PREDETERMINADAS. CADA UNO DE LOS TRANSDUCTORES INTERDIGITALES DE ENTRADA Y SALIDA TIENE UN PAR DE CONECTADORES ENFRENTADOS PARA RECIBIR LA SEÑAL DE ENTRADA Y EXTRAER LA SEÑAL DE SALIDA, RESPECTIVAMENTE, Y UN PAR DE GRUPOS DE PATILLAS DE ELECTRODO INTERCALADAS QUE SE EXTIENDEN DESDE LOS CONECTORES. LOS TRANSDUCTORES INTERDIGITALES DE ENTRADA Y/O DE SALIDA INCLUYEN TRANSDUCTORES INTERDIGITALES DE PATILLAS RETIRADAS CON PATILLAS DE ELECTRODO RETIRADAS SELECTIVAMENTE EN POSICIONES DIFERENTES. CON TAL PONDERACION DE RETIRADA, LOS TRANSDUCTORES INTERDIGITALES TIENEN CARACTERISTICAS DE LOBULO LATERAL, ES DECIR, CARACTERISTICAS DE BLOQUEO DE FRECUENCIA DIFERENTES, DE MODO QUE EL FILTROELASTICO DE ONDAS DE SUPERFICIE TRABAJA CON UNA MAYOR SUPRESION DE LOBULO LATERAL.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1106936A JP2601543B2 (ja) | 1989-04-25 | 1989-04-25 | 弾性表面波フィルタ |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2021524A6 true ES2021524A6 (es) | 1991-11-01 |
Family
ID=14446279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9001154A Expired - Lifetime ES2021524A6 (es) | 1989-04-25 | 1990-04-24 | Filtro elastico de ondas de superficie. |
Country Status (10)
Country | Link |
---|---|
US (1) | US5175519A (es) |
JP (1) | JP2601543B2 (es) |
KR (1) | KR950000082B1 (es) |
CA (1) | CA2015227C (es) |
DE (1) | DE4013214C2 (es) |
ES (1) | ES2021524A6 (es) |
FR (1) | FR2646300B1 (es) |
GB (1) | GB2232546B (es) |
IT (1) | IT1239726B (es) |
SE (1) | SE512480C2 (es) |
Families Citing this family (10)
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 (de) * | 1991-04-11 | 1992-10-14 | SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG | Reflektive Verzögerungsleitung in Oberflächenwellentechnik |
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 |
US6815868B2 (en) * | 2001-04-09 | 2004-11-09 | Murata Manufacturing Co., Ltd. | Surface acoustic wave apparatus and communication unit |
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)
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 |
DE3267639D1 (en) * | 1981-02-04 | 1986-01-09 | Matsushita Electric Ind Co Ltd | Surface acoustic wave device |
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 (en) * | 1986-07-16 | 1990-07-17 | Hiromi Yatsuda | Surface elastic wave filter |
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 FR FR9005195A patent/FR2646300B1/fr not_active Expired - Lifetime
- 1990-04-24 SE SE9001471A patent/SE512480C2/sv not_active IP Right Cessation
- 1990-04-24 CA CA002015227A patent/CA2015227C/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
- 1990-04-25 DE DE4013214A patent/DE4013214C2/de not_active Expired - Lifetime
- 1990-04-25 KR KR1019900005837A patent/KR950000082B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2015227C (en) | 1994-01-25 |
FR2646300B1 (fr) | 1995-03-17 |
SE9001471L (sv) | 1990-10-26 |
US5175519A (en) | 1992-12-29 |
IT1239726B (it) | 1993-11-15 |
GB9009044D0 (en) | 1990-06-20 |
IT9020124A0 (it) | 1990-04-24 |
KR950000082B1 (ko) | 1995-01-09 |
GB2232546A (en) | 1990-12-12 |
JP2601543B2 (ja) | 1997-04-16 |
CA2015227A1 (en) | 1990-10-25 |
DE4013214A1 (de) | 1990-10-31 |
DE4013214C2 (de) | 1996-01-18 |
KR900017280A (ko) | 1990-11-15 |
FR2646300A1 (fr) | 1990-10-26 |
IT9020124A1 (it) | 1991-10-24 |
JPH02284511A (ja) | 1990-11-21 |
SE9001471D0 (sv) | 1990-04-24 |
SE512480C2 (sv) | 2000-03-20 |
GB2232546B (en) | 1993-07-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20101018 |