DE69516561D1 - Symmetrisches akustisches Oberflächenwellenfilter - Google Patents

Symmetrisches akustisches Oberflächenwellenfilter

Info

Publication number
DE69516561D1
DE69516561D1 DE69516561T DE69516561T DE69516561D1 DE 69516561 D1 DE69516561 D1 DE 69516561D1 DE 69516561 T DE69516561 T DE 69516561T DE 69516561 T DE69516561 T DE 69516561T DE 69516561 D1 DE69516561 D1 DE 69516561D1
Authority
DE
Germany
Prior art keywords
acoustic wave
surface acoustic
wave filter
symmetrical surface
symmetrical
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
DE69516561T
Other languages
English (en)
Other versions
DE69516561T2 (de
Inventor
Yutaka Taguchi
Kazuo Eda
Shunichi Seki
Keiji Onishi
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69516561D1 publication Critical patent/DE69516561D1/de
Publication of DE69516561T2 publication Critical patent/DE69516561T2/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
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE1995616561 1994-02-22 1995-02-17 Symmetrisches akustisches Oberflächenwellenfilter Expired - Lifetime DE69516561T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2402794 1994-02-22

Publications (2)

Publication Number Publication Date
DE69516561D1 true DE69516561D1 (de) 2000-06-08
DE69516561T2 DE69516561T2 (de) 2001-01-25

Family

ID=12127047

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995616561 Expired - Lifetime DE69516561T2 (de) 1994-02-22 1995-02-17 Symmetrisches akustisches Oberflächenwellenfilter

Country Status (2)

Country Link
EP (1) EP0668655B1 (de)
DE (1) DE69516561T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638627B4 (de) * 1996-09-20 2007-09-27 Epcos Ag Oberflächenwellen(OFW)-Filter
JP2001223554A (ja) * 2000-02-07 2001-08-17 Murata Mfg Co Ltd 弾性表面波フィルタ
JP3389911B2 (ja) * 2000-02-07 2003-03-24 株式会社村田製作所 弾性表面波フィルタ、共用器及び通信機

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4785270A (en) * 1987-12-30 1988-11-15 Motorola Inc. Monolithic lattice saw filter

Also Published As

Publication number Publication date
DE69516561T2 (de) 2001-01-25
EP0668655B1 (de) 2000-05-03
EP0668655A1 (de) 1995-08-23

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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: PANASONIC CORP., KADOMA, OSAKA, JP