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JPS5377439A - Piezo-filter - Google Patents

Piezo-filter

Info

Publication number
JPS5377439A
JPS5377439A JP15461376A JP15461376A JPS5377439A JP S5377439 A JPS5377439 A JP S5377439A JP 15461376 A JP15461376 A JP 15461376A JP 15461376 A JP15461376 A JP 15461376A JP S5377439 A JPS5377439 A JP S5377439A
Authority
JP
Japan
Prior art keywords
piezo
filter
frequencies
resonance
lengthes
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
JP15461376A
Other languages
Japanese (ja)
Inventor
Sadayuki Takahashi
Takeshi Inoue
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP15461376A priority Critical patent/JPS5377439A/en
Publication of JPS5377439A publication Critical patent/JPS5377439A/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 elements; 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

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

Abstract

PURPOSE:To disperse a sub-resonance frequency by providing a cut near the edge side center part of plural square plate-shaped piezo-resonators where side lengthes are different and controlling so that resonance frequencies of border main vibration or antiresonance frequencies may agree with one another.
JP15461376A 1976-12-21 1976-12-21 Piezo-filter Pending JPS5377439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15461376A JPS5377439A (en) 1976-12-21 1976-12-21 Piezo-filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15461376A JPS5377439A (en) 1976-12-21 1976-12-21 Piezo-filter

Publications (1)

Publication Number Publication Date
JPS5377439A true JPS5377439A (en) 1978-07-08

Family

ID=15588004

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15461376A Pending JPS5377439A (en) 1976-12-21 1976-12-21 Piezo-filter

Country Status (1)

Country Link
JP (1) JPS5377439A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492610A1 (en) * 1980-10-22 1982-04-23 Ngk Spark Plug Co PIEZOELECTRIC FILTER TYPE CASCADE
JPS6181016A (en) * 1984-09-28 1986-04-24 Nippon Dempa Kogyo Co Ltd piezoelectric filter
US6366182B1 (en) * 1998-06-26 2002-04-02 Murata Manufacturing Co., Ltd. Ladder-type piezoelectric filter having a substantially square resonator with the four corners cut

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2492610A1 (en) * 1980-10-22 1982-04-23 Ngk Spark Plug Co PIEZOELECTRIC FILTER TYPE CASCADE
JPS6181016A (en) * 1984-09-28 1986-04-24 Nippon Dempa Kogyo Co Ltd piezoelectric filter
US6366182B1 (en) * 1998-06-26 2002-04-02 Murata Manufacturing Co., Ltd. Ladder-type piezoelectric filter having a substantially square resonator with the four corners cut
US6580340B2 (en) * 1998-06-26 2003-06-17 Murata Manufacturing Co., Ltd. Ladder-type piezoelectric filter using resonators with nodal cuts and made from materials with equal frequency constants

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