AT280357B - Elektromechanisches Filter - Google Patents

Elektromechanisches Filter

Info

Publication number
AT280357B
AT280357B AT1127967A AT1127967A AT280357B AT 280357 B AT280357 B AT 280357B AT 1127967 A AT1127967 A AT 1127967A AT 1127967 A AT1127967 A AT 1127967A AT 280357 B AT280357 B AT 280357B
Authority
AT
Austria
Prior art keywords
electromechanical filter
electromechanical
filter
Prior art date
Application number
AT1127967A
Other languages
English (en)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT280357B publication Critical patent/AT280357B/de

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
    • H03H9/562—Monolithic crystal filters comprising a ceramic piezoelectric layer

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
AT1127967A 1966-12-17 1967-12-14 Elektromechanisches Filter AT280357B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6617756A NL6617756A (de) 1966-12-17 1966-12-17

Publications (1)

Publication Number Publication Date
AT280357B true AT280357B (de) 1970-04-10

Family

ID=19798475

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1127967A AT280357B (de) 1966-12-17 1967-12-14 Elektromechanisches Filter

Country Status (11)

Country Link
US (1) US3571632A (de)
AT (1) AT280357B (de)
BE (1) BE708087A (de)
CH (1) CH470826A (de)
DE (1) DE1541956B2 (de)
DK (1) DK117004B (de)
FR (1) FR1567113A (de)
GB (1) GB1179300A (de)
NL (1) NL6617756A (de)
NO (1) NO121560B (de)
SU (1) SU361606A3 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3924145A (en) * 1974-01-02 1975-12-02 Univ Illinois Surface wave device having a ferroelectric substrate with a sinusoidal pole region
US3945099A (en) * 1975-06-06 1976-03-23 University Of Illinois Foundation Method and apparatus for making a surface wave transducer device
JPS6157108A (ja) * 1984-08-29 1986-03-24 Fujitsu Ltd 圧電セラミツク振動子
US5262696A (en) * 1991-07-05 1993-11-16 Rockwell International Corporation Biaxial transducer
US5315203A (en) * 1992-04-07 1994-05-24 Mcdonnell Douglas Corporation Apparatus for passive damping of a structure
DE4233256C1 (de) * 1992-10-02 1993-12-02 Endress Hauser Gmbh Co Schall- oder Ultraschallwandler
JPH09172344A (ja) * 1995-12-19 1997-06-30 Murata Mfg Co Ltd 圧電共振子
JP3324971B2 (ja) * 1997-09-24 2002-09-17 東洋通信機株式会社 低次高調波振動抑圧圧電振動子の製造方法
US6150703A (en) * 1998-06-29 2000-11-21 Trw Inc. Lateral mode suppression in semiconductor bulk acoustic resonator (SBAR) devices using tapered electrodes, and electrodes edge damping materials
US7053532B2 (en) * 2003-12-18 2006-05-30 Palo Alto Research Center Incorporated Radially poled piezoelectric diaphragm structures
US7084555B2 (en) * 2003-12-18 2006-08-01 Palo Alto Research Center Incorporated Piezoelectric diaphragm structure with outer edge electrode
US7176600B2 (en) * 2003-12-18 2007-02-13 Palo Alto Research Center Incorporated Poling system for piezoelectric diaphragm structures

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769867A (en) * 1947-02-07 1956-11-06 Sonotone Corp Dielectrostrictive signal and energy transducers
US2830274A (en) * 1954-01-04 1958-04-08 Gen Electric Electromechanical transducer
US2875355A (en) * 1954-05-24 1959-02-24 Gulton Ind Inc Ultrasonic zone plate focusing transducer
US2953755A (en) * 1958-11-17 1960-09-20 Oskar E Mattiat Piezoelectric ceramic filters
US2943279A (en) * 1958-11-17 1960-06-28 Oskar E Mattiat Piezoelectric band pass filter
US3018451A (en) * 1958-12-04 1962-01-23 Mattiat Oskar Piezoelectric resonator with oppositely poled ring and spot
US2969512A (en) * 1960-02-17 1961-01-24 Clevite Corp Piezoelectric ceramic resonators

Also Published As

Publication number Publication date
SU361606A3 (de) 1972-12-07
DK117004B (da) 1970-03-09
CH470826A (de) 1969-03-31
DE1541956B2 (de) 1977-07-07
US3571632A (en) 1971-03-23
BE708087A (de) 1968-06-17
NL6617756A (de) 1968-06-18
NO121560B (de) 1971-03-15
DE1541956A1 (de) 1970-11-26
FR1567113A (de) 1969-05-16
GB1179300A (en) 1970-01-28

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee