JPS5672513A - Piezoelectric filter - Google Patents

Piezoelectric filter

Info

Publication number
JPS5672513A
JPS5672513A JP14952479A JP14952479A JPS5672513A JP S5672513 A JPS5672513 A JP S5672513A JP 14952479 A JP14952479 A JP 14952479A JP 14952479 A JP14952479 A JP 14952479A JP S5672513 A JPS5672513 A JP S5672513A
Authority
JP
Japan
Prior art keywords
supporting
plate
oscillators
terminal plate
piezoelectric
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.)
Pending
Application number
JP14952479A
Other languages
Japanese (ja)
Inventor
Kiyohiko Kondo
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14952479A priority Critical patent/JPS5672513A/en
Publication of JPS5672513A publication Critical patent/JPS5672513A/en
Pending 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
    • H03H9/02—Details
    • H03H9/05—Holders; Supports
    • H03H9/10—Mounting in enclosures
    • H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
    • H03H9/1014—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device
    • H03H9/1028—Mounting in enclosures for bulk acoustic wave [BAW] devices the enclosure being defined by a frame built on a substrate and a cap, the frame having no mechanical contact with the BAW device the BAW device being held between spring terminals
    • 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
    • H03H9/58—Multiple crystal filters
    • H03H9/60—Electric coupling means therefor
    • H03H9/605—Electric coupling means therefor consisting of a ladder configuration

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)

Abstract

PURPOSE:To reduce a fault which is not fail-safe, by providing a locating stopper for regulating so that one pair of plate spring-form conductive supporting terminals do not contact with each other in a state that the piezoelectric oscillator is not placed between. CONSTITUTION:Plural locating elastic thin pieces 13, 13' are projectingly provided in parallel and at regular intervals on one end of the supporting base 12. The piezoelectric oscillators (S1-S4, P1-P3) and the supporting terminal plate 2 are placed on the supporting bases 12, 12. The insulating plate 14 formed by insulating high molecular resin, etc. is inserted between the oscillators P1 and S2, between P2 and S3, and between P3 and S4. The displacement supply plate 15 is inserted between the supporting terminal plate and the wall surface having the input terminals T1, T2 and T3, T4 of the casing 11.
JP14952479A 1979-11-20 1979-11-20 Piezoelectric filter Pending JPS5672513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14952479A JPS5672513A (en) 1979-11-20 1979-11-20 Piezoelectric filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14952479A JPS5672513A (en) 1979-11-20 1979-11-20 Piezoelectric filter

Publications (1)

Publication Number Publication Date
JPS5672513A true JPS5672513A (en) 1981-06-16

Family

ID=15477013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14952479A Pending JPS5672513A (en) 1979-11-20 1979-11-20 Piezoelectric filter

Country Status (1)

Country Link
JP (1) JPS5672513A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767422U (en) * 1980-10-08 1982-04-22
FR2492610A1 (en) * 1980-10-22 1982-04-23 Ngk Spark Plug Co PIEZOELECTRIC FILTER TYPE CASCADE
US5057802A (en) * 1989-02-14 1991-10-15 Ngk Spark Plug Co., Ltd. Ladder-type electric filter apparatus and housing therefor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767422U (en) * 1980-10-08 1982-04-22
FR2492610A1 (en) * 1980-10-22 1982-04-23 Ngk Spark Plug Co PIEZOELECTRIC FILTER TYPE CASCADE
US5057802A (en) * 1989-02-14 1991-10-15 Ngk Spark Plug Co., Ltd. Ladder-type electric filter apparatus and housing therefor

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