FR1163732A - Piezoelectric crystal for filters and similar applications - Google Patents

Piezoelectric crystal for filters and similar applications

Info

Publication number
FR1163732A
FR1163732A FR1163732DA FR1163732A FR 1163732 A FR1163732 A FR 1163732A FR 1163732D A FR1163732D A FR 1163732DA FR 1163732 A FR1163732 A FR 1163732A
Authority
FR
France
Prior art keywords
filters
piezoelectric crystal
similar applications
applications
similar
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
Other languages
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR1163732A publication Critical patent/FR1163732A/en
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 piezo-electric 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
    • H03H9/02—Details
    • H03H9/02007—Details of bulk acoustic wave devices
    • H03H9/02015—Characteristics of piezoelectric layers, e.g. cutting angles
FR1163732D 1956-01-04 1957-01-03 Piezoelectric crystal for filters and similar applications Expired FR1163732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1163732X 1956-01-04

Publications (1)

Publication Number Publication Date
FR1163732A true FR1163732A (en) 1958-09-30

Family

ID=7728672

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1163732D Expired FR1163732A (en) 1956-01-04 1957-01-03 Piezoelectric crystal for filters and similar applications

Country Status (1)

Country Link
FR (1) FR1163732A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139793A (en) * 1976-09-14 1979-02-13 Ebauches S.A. Integral resonant support arms for piezoelectric microresonators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4139793A (en) * 1976-09-14 1979-02-13 Ebauches S.A. Integral resonant support arms for piezoelectric microresonators

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