ATE427583T1 - Abstimmbare filteranordnung - Google Patents

Abstimmbare filteranordnung

Info

Publication number
ATE427583T1
ATE427583T1 AT01927867T AT01927867T ATE427583T1 AT E427583 T1 ATE427583 T1 AT E427583T1 AT 01927867 T AT01927867 T AT 01927867T AT 01927867 T AT01927867 T AT 01927867T AT E427583 T1 ATE427583 T1 AT E427583T1
Authority
AT
Austria
Prior art keywords
filter arrangement
tunable
tunable filter
capacitor
capacitance
Prior art date
Application number
AT01927867T
Other languages
English (en)
Inventor
Mareike Klee
Robert Milsom
Hans Libl
Rainer Kiewitt
Uwe Mackens
Delden Martinus Van
Wilhelm Hermann
Olaf Wunnicke
Original Assignee
Nxp Bv
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 Nxp Bv filed Critical Nxp Bv
Application granted granted Critical
Publication of ATE427583T1 publication Critical patent/ATE427583T1/de

Links

Classifications

    • 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
    • H03H9/562—Monolithic crystal filters comprising a ceramic piezoelectric layer
    • 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
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02086—Means for compensation or elimination of undesirable effects
    • H03H9/02094—Means for compensation or elimination of undesirable effects of adherence
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02086—Means for compensation or elimination of undesirable effects
    • H03H9/02149—Means for compensation or elimination of undesirable effects of ageing changes of characteristics, e.g. electro-acousto-migration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/05—Holders or supports
    • H03H9/0538—Constructional combinations of supports or holders with electromechanical or other electronic elements
    • H03H9/0542—Constructional combinations of supports or holders with electromechanical or other electronic elements consisting of a lateral arrangement
    • 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

Landscapes

  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Filters And Equalizers (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
AT01927867T 2000-04-06 2001-04-04 Abstimmbare filteranordnung ATE427583T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00302923 2000-04-06

Publications (1)

Publication Number Publication Date
ATE427583T1 true ATE427583T1 (de) 2009-04-15

Family

ID=8172893

Family Applications (1)

Application Number Title Priority Date Filing Date
AT01927867T ATE427583T1 (de) 2000-04-06 2001-04-04 Abstimmbare filteranordnung

Country Status (7)

Country Link
US (1) US6653913B2 (de)
EP (1) EP1290790B1 (de)
JP (1) JP5175016B2 (de)
CN (1) CN100407574C (de)
AT (1) ATE427583T1 (de)
DE (1) DE60138188D1 (de)
WO (1) WO2001078230A1 (de)

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Also Published As

Publication number Publication date
WO2001078230A1 (en) 2001-10-18
JP5175016B2 (ja) 2013-04-03
JP2003530705A (ja) 2003-10-14
CN1383609A (zh) 2002-12-04
CN100407574C (zh) 2008-07-30
EP1290790B1 (de) 2009-04-01
EP1290790A1 (de) 2003-03-12
US6653913B2 (en) 2003-11-25
US20010048352A1 (en) 2001-12-06
DE60138188D1 (de) 2009-05-14

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