JP2004515149A - フィルタの、もしくはフィルタに関連する改善 - Google Patents

フィルタの、もしくはフィルタに関連する改善 Download PDF

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Publication number
JP2004515149A
JP2004515149A JP2002546291A JP2002546291A JP2004515149A JP 2004515149 A JP2004515149 A JP 2004515149A JP 2002546291 A JP2002546291 A JP 2002546291A JP 2002546291 A JP2002546291 A JP 2002546291A JP 2004515149 A JP2004515149 A JP 2004515149A
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JP
Japan
Prior art keywords
fbars
filter
fbar
series
parallel
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Withdrawn
Application number
JP2002546291A
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English (en)
Japanese (ja)
Inventor
スウ，チンシン
カービー，ポール・ビー
小室　栄樹
伊村　正明
ホワットモア，ロジャー・ダブリュー
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TDK Corp
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TDK Corp
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Publication date
Application filed by TDK Corp filed Critical TDK Corp
Publication of JP2004515149A publication Critical patent/JP2004515149A/ja
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
    • H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
    • H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
    • H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
    • H03H9/171—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator implemented with thin-film techniques, i.e. of the film bulk acoustic resonator [FBAR] type
    • H03H9/172—Means for mounting on a substrate, i.e. means constituting the material interface confining the waves to a volume
    • H03H9/174—Membranes
    • 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
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic crystal filters
    • H03H9/566—Electric coupling means therefor
    • H03H9/568—Electric coupling means therefor consisting of a ladder configuration

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  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
JP2002546291A 2000-11-29 2001-07-11 フィルタの、もしくはフィルタに関連する改善 Withdrawn JP2004515149A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0029090.8A GB0029090D0 (en) 2000-11-29 2000-11-29 Improvements in or relating to filters
PCT/GB2001/003141 WO2002045265A1 (en) 2000-11-29 2001-07-11 Improvements in or relating to filters

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2003316522A Division JP2004007847A (ja) 2000-11-29 2003-09-09 薄膜バルク波共振子フィルタ

Publications (1)

Publication Number Publication Date
JP2004515149A true JP2004515149A (ja) 2004-05-20

Family

ID=9904094

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2002546291A Withdrawn JP2004515149A (ja) 2000-11-29 2001-07-11 フィルタの、もしくはフィルタに関連する改善
JP2003316522A Withdrawn JP2004007847A (ja) 2000-11-29 2003-09-09 薄膜バルク波共振子フィルタ

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2003316522A Withdrawn JP2004007847A (ja) 2000-11-29 2003-09-09 薄膜バルク波共振子フィルタ

Country Status (7)

Country Link
US (2) US7187254B2 (https=)
EP (1) EP1340315B1 (https=)
JP (2) JP2004515149A (https=)
AU (1) AU2001269334A1 (https=)
DE (1) DE60131888T2 (https=)
GB (1) GB0029090D0 (https=)
WO (1) WO2002045265A1 (https=)

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Also Published As

Publication number Publication date
DE60131888T2 (de) 2008-12-04
DE60131888D1 (de) 2008-01-24
EP1340315B1 (en) 2007-12-12
JP2004007847A (ja) 2004-01-08
US7187254B2 (en) 2007-03-06
US20040150295A1 (en) 2004-08-05
EP1340315A1 (en) 2003-09-03
US20040061416A1 (en) 2004-04-01
AU2001269334A1 (en) 2002-06-11
GB0029090D0 (en) 2001-01-10
US7199504B2 (en) 2007-04-03
WO2002045265A1 (en) 2002-06-06

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