DE69215727D1 - Akustische Oberflächenwellenanordnung für Bandpassfilter mit geringer Einfügungsdämpfung und vorbestimmter Bandpasskennlinie für Breitbandigkeit - Google Patents

Akustische Oberflächenwellenanordnung für Bandpassfilter mit geringer Einfügungsdämpfung und vorbestimmter Bandpasskennlinie für Breitbandigkeit

Info

Publication number
DE69215727D1
DE69215727D1 DE69215727T DE69215727T DE69215727D1 DE 69215727 D1 DE69215727 D1 DE 69215727D1 DE 69215727 T DE69215727 T DE 69215727T DE 69215727 T DE69215727 T DE 69215727T DE 69215727 D1 DE69215727 D1 DE 69215727D1
Authority
DE
Germany
Prior art keywords
broadband
bandpass
insertion loss
surface wave
low insertion
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
DE69215727T
Other languages
English (en)
Other versions
DE69215727T2 (de
Inventor
Yoshio Satoh
Tsutomu Miyashita
Osamu Ikata
Mitsuo Takamatsu
Takashi Matsuda
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.)
Taiyo Yuden Co Ltd
Original Assignee
Fujitsu 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
Priority claimed from JP3066119A external-priority patent/JP2867728B2/ja
Priority claimed from JP3217432A external-priority patent/JPH0563502A/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of DE69215727D1 publication Critical patent/DE69215727D1/de
Application granted granted Critical
Publication of DE69215727T2 publication Critical patent/DE69215727T2/de
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 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
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE69215727T 1991-03-29 1992-03-10 Akustische Oberflächenwellenanordnung für Bandpassfilter mit geringer Einfügungsdämpfung und vorbestimmter Bandpasskennlinie für Breitbandigkeit Expired - Lifetime DE69215727T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP3066119A JP2867728B2 (ja) 1991-03-29 1991-03-29 弾性表面波素子
JP3217432A JPH0563502A (ja) 1991-08-28 1991-08-28 弾性表面波素子

Publications (2)

Publication Number Publication Date
DE69215727D1 true DE69215727D1 (de) 1997-01-23
DE69215727T2 DE69215727T2 (de) 1997-04-03

Family

ID=26407293

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69215727T Expired - Lifetime DE69215727T2 (de) 1991-03-29 1992-03-10 Akustische Oberflächenwellenanordnung für Bandpassfilter mit geringer Einfügungsdämpfung und vorbestimmter Bandpasskennlinie für Breitbandigkeit

Country Status (5)

Country Link
US (1) US5300902A (de)
EP (1) EP0506249B1 (de)
KR (1) KR960005384B1 (de)
CA (1) CA2062463C (de)
DE (1) DE69215727T2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3254779B2 (ja) * 1993-01-05 2002-02-12 株式会社村田製作所 多電極形弾性表面波装置
JP3237387B2 (ja) * 1994-04-12 2001-12-10 株式会社村田製作所 弾性表面波共振子フィルタ
JPH07283682A (ja) 1994-04-13 1995-10-27 Murata Mfg Co Ltd 弾性表面波共振子フィルタ
US5499003A (en) * 1994-10-03 1996-03-12 Motorola, Inc. Differential saw filter including series coupled resonant/antiresonant tracks
DE19610806A1 (de) * 1995-03-20 1996-10-10 Hitachi Media Electron Kk Oberflächenwellen-Filter und Antennenweiche
JPH08265087A (ja) * 1995-03-22 1996-10-11 Mitsubishi Electric Corp 弾性表面波フィルタ
EP0746095B1 (de) * 1995-05-29 2007-02-14 SANYO ELECTRIC Co., Ltd. Akustischer Oberflächenwellenfilter
US6407650B1 (en) 1999-08-27 2002-06-18 Board Of Regents The University Of Texas System Surface acoustic wave shaping system
JP6134550B2 (ja) 2013-03-22 2017-05-24 スカイワークスフィルターソリューションズジャパン株式会社 弾性波装置およびそれを用いたアンテナ共用器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57202114A (en) * 1981-06-05 1982-12-10 Hitachi Ltd Band pass filter
JPS58154917A (ja) * 1982-03-10 1983-09-14 Hitachi Ltd 弾性表面波バンドパスフイルタ
JPS6059809A (ja) * 1983-09-12 1985-04-06 Oki Electric Ind Co Ltd 表面弾性波フィルタ
JPS6423612A (en) * 1987-07-20 1989-01-26 Hitachi Ltd Elastic surface wave device
JPH071859B2 (ja) * 1988-03-11 1995-01-11 国際電気株式会社 弾性表面波フィルタ
JP2748009B2 (ja) * 1989-01-31 1998-05-06 キンセキ株式会社 表面弾性波共振子フィルタ
JPH02238706A (ja) * 1989-03-13 1990-09-21 Hitachi Ltd 弾性表面波バンドパスフィルタ
JPH036913A (ja) * 1989-06-05 1991-01-14 Hitachi Ltd 弾性表面波フィルタ及びそれを用いた移動無線装置
JPH03270309A (ja) * 1990-03-19 1991-12-02 Fujitsu Ltd 多電極構成型弾性表面波素子

Also Published As

Publication number Publication date
US5300902A (en) 1994-04-05
EP0506249B1 (de) 1996-12-11
CA2062463C (en) 1996-01-16
EP0506249A1 (de) 1992-09-30
KR920019071A (ko) 1992-10-22
DE69215727T2 (de) 1997-04-03
CA2062463A1 (en) 1992-09-30
KR960005384B1 (ko) 1996-04-24

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TAIYO YUDEN CO., LTD., TOKIO/TOKYO, JP

8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE