SE512480C2 - Ytljudvågsfilter med utgående och ingående sammanflätade givare samt motbelägna kontaktdon. - Google Patents

Ytljudvågsfilter med utgående och ingående sammanflätade givare samt motbelägna kontaktdon.

Info

Publication number
SE512480C2
SE512480C2 SE9001471A SE9001471A SE512480C2 SE 512480 C2 SE512480 C2 SE 512480C2 SE 9001471 A SE9001471 A SE 9001471A SE 9001471 A SE9001471 A SE 9001471A SE 512480 C2 SE512480 C2 SE 512480C2
Authority
SE
Sweden
Prior art keywords
interlaced
sensors
retracted
input
fingers
Prior art date
Application number
SE9001471A
Other languages
English (en)
Swedish (sv)
Other versions
SE9001471D0 (sv
SE9001471L (sv
Inventor
Hiromi Yatsuda
Yoshihiko Takeuchi
Original Assignee
Japan Radio Co Ltd
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 filed Critical Japan Radio Co Ltd
Publication of SE9001471D0 publication Critical patent/SE9001471D0/xx
Publication of SE9001471L publication Critical patent/SE9001471L/
Publication of SE512480C2 publication Critical patent/SE512480C2/sv

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)
SE9001471A 1989-04-25 1990-04-24 Ytljudvågsfilter med utgående och ingående sammanflätade givare samt motbelägna kontaktdon. SE512480C2 (sv)

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 (3)

Publication Number Publication Date
SE9001471D0 SE9001471D0 (sv) 1990-04-24
SE9001471L SE9001471L (sv) 1990-10-26
SE512480C2 true SE512480C2 (sv) 2000-03-20

Family

ID=14446279

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9001471A SE512480C2 (sv) 1989-04-25 1990-04-24 Ytljudvågsfilter med utgående och ingående sammanflätade givare samt motbelägna kontaktdon.

Country Status (10)

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

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
DE19610806A1 (de) * 1995-03-20 1996-10-10 Hitachi Media Electron Kk Oberflächenwellen-Filter und Antennenweiche
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
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
GB2193060B (en) * 1986-07-16 1991-04-03 Japan Radio Co Ltd 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
IT9020124A1 (it) 1991-10-24
IT9020124A0 (it) 1990-04-24
US5175519A (en) 1992-12-29
GB2232546A (en) 1990-12-12
JPH02284511A (ja) 1990-11-21
CA2015227C (en) 1994-01-25
ES2021524A6 (es) 1991-11-01
DE4013214A1 (de) 1990-10-31
GB2232546B (en) 1993-07-07
DE4013214C2 (de) 1996-01-18
FR2646300B1 (fr) 1995-03-17
SE9001471D0 (sv) 1990-04-24
SE9001471L (sv) 1990-10-26
KR900017280A (ko) 1990-11-15
KR950000082B1 (ko) 1995-01-09
JP2601543B2 (ja) 1997-04-16
CA2015227A1 (en) 1990-10-25
IT1239726B (it) 1993-11-15
FR2646300A1 (fr) 1990-10-26
GB9009044D0 (en) 1990-06-20

Similar Documents

Publication Publication Date Title
KR100301781B1 (ko) 탄성표면파장치를위한가감보정된테이퍼변환기.
US4492940A (en) Acoustic surface-wave bandpass filter
US4746882A (en) Saw multiplexer using tapered transducers
US7023300B2 (en) Surface wave devices with low passband ripple
EP0483940B1 (en) Group single-phase unidirectional transducers with 3/8 lambda and 5/8 lambda sampling
SE512480C2 (sv) Ytljudvågsfilter med utgående och ingående sammanflätade givare samt motbelägna kontaktdon.
US4079342A (en) Fanned multistrip coupler filters
US4143343A (en) Acoustic surface wave interaction device
US5670920A (en) Multi-track SAW filter with reflectors and reversed polarity IDT connections
US5818310A (en) Series-block and line-width weighted saw filter device
KR100634637B1 (ko) 표면파 공진기를 갖춘 리액턴스 필터
US4396851A (en) Surface acoustic wave device
EP1400015B1 (en) Spatial harmonic transducers for surface wave devices
US4365220A (en) Surface wave circuit device
EP0158402B1 (en) Electrical filter comprising an acoustic surface wave device, and method of manufacturing such a filter
EP0169607B1 (en) Surface-propagating acoustic wave device
CA2062463A1 (en) Surface acoustic wave device for band-pass filter having small insertion loss and predetermined pass-band characteristics for broad band
GB2097212A (en) Acoustic wave bandpass electrical filters
US4123681A (en) Wide band proportional transducer array
EP0255263A2 (en) Transducer
US4600852A (en) Wide bandwidth withdrawal weighted surface acoustic wave filters
EP0254427B1 (en) Surface acoustic wave filters
US4539502A (en) Magnetic feedthrough cancelling surface acoustic wave device
US4258342A (en) Elastic surface wave device
US6559739B2 (en) String weighted surface acoustic wave transducer

Legal Events

Date Code Title Description
NUG Patent has lapsed