FR1341963A - Filtre électromécanique à cristal, à vibrations au cisaillement en épaisseur - Google Patents

Filtre électromécanique à cristal, à vibrations au cisaillement en épaisseur

Info

Publication number
FR1341963A
FR1341963A FR919708A FR919708A FR1341963A FR 1341963 A FR1341963 A FR 1341963A FR 919708 A FR919708 A FR 919708A FR 919708 A FR919708 A FR 919708A FR 1341963 A FR1341963 A FR 1341963A
Authority
FR
France
Prior art keywords
modes
plate
mode
fundamental
filter
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
Application number
FR919708A
Other languages
English (en)
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.)
Toyo Tsushinki KK
Original Assignee
Toyo Tsushinki KK
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 Toyo Tsushinki KK filed Critical Toyo Tsushinki KK
Application granted granted Critical
Publication of FR1341963A publication Critical patent/FR1341963A/fr
Expired 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
    • H03H9/46—Filters
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/56—Monolithic 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
    • H03H9/0023—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
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1708—Comprising bridging elements, i.e. elements in a series path without own reference to ground and spanning branching nodes of another series path

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)
FR919708A 1961-12-27 1962-12-26 Filtre électromécanique à cristal, à vibrations au cisaillement en épaisseur Expired FR1341963A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4718961 1961-12-27

Publications (1)

Publication Number Publication Date
FR1341963A true FR1341963A (fr) 1963-11-02

Family

ID=12768143

Family Applications (1)

Application Number Title Priority Date Filing Date
FR919708A Expired FR1341963A (fr) 1961-12-27 1962-12-26 Filtre électromécanique à cristal, à vibrations au cisaillement en épaisseur

Country Status (3)

Country Link
US (1) US3396327A (fr)
FR (1) FR1341963A (fr)
GB (1) GB1023671A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279862B (de) * 1965-01-28 1968-10-10 Fujitsu Ltd Bandfilter aus piezoelektrischem, keramischem Material

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465178A (en) * 1966-09-13 1969-09-02 Us Army Driven-boundary piezoelectric crystals
US3593219A (en) * 1967-07-24 1971-07-13 Toko Inc Ceramic filter for high frequencies
US3599124A (en) * 1968-04-24 1971-08-10 Bell Telephone Labor Inc Crystal filters
US3576506A (en) * 1968-04-24 1971-04-27 Bell Telephone Labor Inc Energy translating devices
US3582836A (en) * 1969-07-01 1971-06-01 Damon Eng Inc Monolithic crystal filters
DE2001433C3 (de) * 1970-01-07 1983-06-01 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Bandpaßfilter
US3774057A (en) * 1971-04-21 1973-11-20 Nippon Electric Co Resonator for torsional vibration
US3704433A (en) * 1971-05-27 1972-11-28 Bell Telephone Labor Inc Band-elimination filter
US3739304A (en) * 1971-09-27 1973-06-12 Bell Telephone Labor Inc Resonator interconnections in monolithic crystal filters
US3763446A (en) * 1972-03-31 1973-10-02 Murata Manufacturing Co High frequency multi-resonator of trapped energy type
US3824448A (en) * 1972-12-21 1974-07-16 Rivas R De Contact potential generator system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2097458A (en) * 1931-09-24 1937-11-02 Rca Corp Filter
US2037171A (en) * 1933-06-23 1936-04-14 Bell Telephone Labor Inc Wave filter
US2248776A (en) * 1938-07-28 1941-07-08 Bell Telephone Labor Inc Wave filter
US2306909A (en) * 1939-06-09 1942-12-29 Bell Telephone Labor Inc Piezoelectric crystal apparatus
US2301828A (en) * 1940-04-12 1942-11-10 American Telephone & Telegraph Frequency sensitive elements
US2284753A (en) * 1940-08-03 1942-06-02 Bell Telephone Labor Inc Piezoelectric crystal apparatus
US2309467A (en) * 1941-07-25 1943-01-26 Bell Telephone Labor Inc Rochelle salt piezoelectric crystal apparatus
US2300075A (en) * 1941-07-25 1942-10-27 Bell Telephone Labor Inc Piezoelectric crystal controlled oscillator
US2373431A (en) * 1943-03-30 1945-04-10 Bell Telephone Labor Inc Electric wave filter
US2429639A (en) * 1945-06-14 1947-10-28 Bell Telephone Labor Inc Wave filter
US2799789A (en) * 1949-04-06 1957-07-16 John M Wolfskill Piezoelectric crystal apparatus and method of making the same
US3185943A (en) * 1956-04-23 1965-05-25 Toyotsushinki Kabushiki Kaisha One-piece mechanical filter having portions forming plural resonators and coupling means
US3297968A (en) * 1962-03-28 1967-01-10 Vibrasonics Inc Piezoelectric ceramic transformer
US3222622A (en) * 1962-08-14 1965-12-07 Clevite Corp Wave filter comprising piezoelectric wafer electroded to define a plurality of resonant regions independently operable without significant electro-mechanical interaction

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279862B (de) * 1965-01-28 1968-10-10 Fujitsu Ltd Bandfilter aus piezoelektrischem, keramischem Material

Also Published As

Publication number Publication date
GB1023671A (en) 1966-03-23
US3396327A (en) 1968-08-06

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