NL62574C - - Google Patents

Info

Publication number
NL62574C
NL62574C NL62574DA NL62574C NL 62574 C NL62574 C NL 62574C NL 62574D A NL62574D A NL 62574DA NL 62574 C NL62574 C NL 62574C
Authority
NL
Netherlands
Application number
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.)
Publication of NL62574C publication Critical patent/NL62574C/xx

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
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
    • H03H9/02023—Characteristics of piezoelectric layers, e.g. cutting angles consisting of quartz
    • 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
    • H03H9/0095—Balance-unbalance or balance-balance networks using bulk acoustic wave devices
    • 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
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
    • H03H9/21—Crystal tuning forks
    • H03H9/215—Crystal tuning forks consisting of quartz
    • 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
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
    • 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
    • H03H9/56—Monolithic crystal filters

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
NL62574D 1936-02-21 NL62574C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US65022A US2185599A (en) 1936-02-21 1936-02-21 Piezoelectric apparatus

Publications (1)

Publication Number Publication Date
NL62574C true NL62574C (en)

Family

ID=22059823

Family Applications (1)

Application Number Title Priority Date Filing Date
NL62574D NL62574C (en) 1936-02-21

Country Status (6)

Country Link
US (1) US2185599A (en)
BE (1) BE420034A (en)
CH (1) CH202081A (en)
FR (1) FR820481A (en)
GB (1) GB479979A (en)
NL (1) NL62574C (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE759014C (en) * 1939-08-30 1953-03-23 Siemens & Halske A G Piezoelectric transmitter crystal
DE767884C (en) * 1941-04-03 1954-05-31 Telefunken Gmbh Filters, phase rotator or the like of electrical communications engineering
DE763329C (en) * 1941-04-29 1954-10-18 Siemens & Halske A G Quartz crystal executing bending vibrations
US2666196A (en) * 1949-06-07 1954-01-12 Bell Telephone Labor Inc Frequency station calling system using bifurcated piezoelectric elements
US2988728A (en) * 1953-07-06 1961-06-13 United Geophysical Corp Piezoelectric hydrophone
US2990525A (en) * 1957-12-12 1961-06-27 Bell Telephone Labor Inc Wave filter
US3582836A (en) * 1969-07-01 1971-06-01 Damon Eng Inc Monolithic crystal filters
JPS5851687B2 (en) * 1976-10-22 1983-11-17 セイコーインスツルメンツ株式会社 Tuning fork crystal oscillator
JPS55112017A (en) * 1979-02-20 1980-08-29 Seiko Epson Corp Electrode of tuning fork type crystal oscillator
DE3379623D1 (en) * 1982-06-04 1989-05-18 Statek Corp Extensional mode piezoelectric microresonator
JP3858639B2 (en) * 2000-08-31 2006-12-20 株式会社村田製作所 Piezoelectric resonator and electronic device

Also Published As

Publication number Publication date
BE420034A (en)
GB479979A (en) 1938-02-15
US2185599A (en) 1940-01-02
CH202081A (en) 1938-12-31
FR820481A (en) 1937-11-12

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