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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
interdigital
signal
input
wave filter
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
Application number
ES9001154A
Other languages
English (en)
Inventor
Hiromi Yatsuda
Yoshiniko 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.)
Japan Radio Co Ltd
Nihon Musen KK
Original Assignee
Japan Radio Co Ltd
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.)
Filing date
Publication date
Application filed by Japan Radio Co Ltd, Nihon Musen KK filed Critical Japan Radio Co Ltd
Publication of ES2021524A6 publication Critical patent/ES2021524A6/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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)

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.
ES9001154A 1989-04-25 1990-04-24 Filtro elastico de ondas de superficie. Expired - Lifetime ES2021524A6 (es)

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)

* 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 (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
EP1249934B1 (en) * 2001-04-09 2013-07-31 Murata Manufacturing Co., Ltd. Surface acoustic wave apparatus and communications 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)

* 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 (en) * 1981-02-04 1985-11-27 Matsushita Electric Industrial 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

Also Published As

Publication number Publication date
CA2015227C (en) 1994-01-25
CA2015227A1 (en) 1990-10-25
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
GB2232546B (en) 1993-07-07
IT9020124A1 (it) 1991-10-24
SE9001471L (sv) 1990-10-26

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20101018