FI19991825A - Pietsoelektrisk filter av flerlagrig typ - Google Patents

Pietsoelektrisk filter av flerlagrig typ

Info

Publication number
FI19991825A
FI19991825A FI991825A FI19991825A FI19991825A FI 19991825 A FI19991825 A FI 19991825A FI 991825 A FI991825 A FI 991825A FI 19991825 A FI19991825 A FI 19991825A FI 19991825 A FI19991825 A FI 19991825A
Authority
FI
Finland
Prior art keywords
layer piezoelectric
piezoelectric filter
filter
layer
piezoelectric
Prior art date
Application number
FI991825A
Other languages
English (en)
Finnish (fi)
Inventor
Eiji Ozeki
Tatsuo Ogawa
Original Assignee
Ngk Spark Plug Co
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 Ngk Spark Plug Co filed Critical Ngk Spark Plug Co
Publication of FI19991825A publication Critical patent/FI19991825A/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
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • 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
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/581—Multiple crystal filters comprising ceramic piezoelectric layers
    • 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
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
    • H03H9/1035—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by two sealing substrates sandwiching the piezoelectric layer of the BAW device
    • 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
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • 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
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/60—Electric coupling means therefor
    • H03H9/605—Electric coupling means therefor consisting of a ladder configuration

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FI991825A 1998-08-28 1999-08-27 Pietsoelektrisk filter av flerlagrig typ FI19991825A (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10242757A JP2000077971A (ja) 1998-08-28 1998-08-28 積層型圧電フィルタ

Publications (1)

Publication Number Publication Date
FI19991825A true FI19991825A (sv) 2000-02-28

Family

ID=17093824

Family Applications (1)

Application Number Title Priority Date Filing Date
FI991825A FI19991825A (sv) 1998-08-28 1999-08-27 Pietsoelektrisk filter av flerlagrig typ

Country Status (4)

Country Link
US (1) US6225877B1 (sv)
JP (1) JP2000077971A (sv)
KR (1) KR20000017614A (sv)
FI (1) FI19991825A (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002076837A (ja) * 2000-08-31 2002-03-15 Ngk Spark Plug Co Ltd 積層型圧電フィルタ
US8814996B2 (en) * 2010-12-01 2014-08-26 University Of South Carolina Methods and sensors for the detection of active carbon filters degradation with EMIS-ECIS PWAS
WO2019050158A1 (ko) * 2017-09-11 2019-03-14 엘지전자 주식회사 화합물 태양전지 모듈 및 그 제조 방법

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5412579A (en) 1977-06-29 1979-01-30 Nippon Telegr & Teleph Corp <Ntt> Light output stabilizing method
JPS6211314A (ja) * 1985-07-09 1987-01-20 Murata Mfg Co Ltd ３素子型圧電フイルタ
JP2524969Y2 (ja) * 1987-11-27 1997-02-05 日本特殊陶業株式会社 梯子型電気濾波回路装置
JPH0397314A (ja) * 1989-09-09 1991-04-23 Murata Mfg Co Ltd 積層型圧電共振部品
JPH044603A (ja) * 1990-04-21 1992-01-09 Murata Mfg Co Ltd チップ型圧電部品
US5109176A (en) * 1990-11-16 1992-04-28 Motorola, Inc. Mounting for multiple crystal filter blanks
JPH04284015A (ja) * 1991-03-13 1992-10-08 Murata Mfg Co Ltd ラダー型フィルタ
JPH06224687A (ja) * 1993-01-28 1994-08-12 Murata Mfg Co Ltd ラダー型フィルタ
JP3141723B2 (ja) * 1995-04-11 2001-03-05 株式会社村田製作所 幅モードを利用した共振子及び共振部品
JP3061167B2 (ja) * 1995-06-29 2000-07-10 富士通テン株式会社 音量調整回路
JPH0918285A (ja) * 1995-06-30 1997-01-17 Kyocera Corp ラダー型フィルタ
JPH10135764A (ja) * 1996-10-29 1998-05-22 Murata Mfg Co Ltd 圧電共振装置
JPH10284985A (ja) * 1997-04-01 1998-10-23 Murata Mfg Co Ltd 圧電フィルタ
EP0897217A3 (en) * 1997-08-12 2001-09-19 NGK Spark Plug Co. Ltd. Energy trapping type piezoelectric filter

Also Published As

Publication number Publication date
JP2000077971A (ja) 2000-03-14
KR20000017614A (ko) 2000-03-25
US6225877B1 (en) 2001-05-01

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Legal Events

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