DE3483398D1 - Elektromechanisches filter mit mechanisch gekoppelten resonatoren. - Google Patents

Elektromechanisches filter mit mechanisch gekoppelten resonatoren.

Info

Publication number
DE3483398D1
DE3483398D1 DE8484301264T DE3483398T DE3483398D1 DE 3483398 D1 DE3483398 D1 DE 3483398D1 DE 8484301264 T DE8484301264 T DE 8484301264T DE 3483398 T DE3483398 T DE 3483398T DE 3483398 D1 DE3483398 D1 DE 3483398D1
Authority
DE
Germany
Prior art keywords
mechanically coupled
coupled resonators
electromechanical filter
electromechanical
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 - Fee Related
Application number
DE8484301264T
Other languages
English (en)
Inventor
Takashi Gounji
Teruo Kawatsu
Yoshihiko Kasai
Chikao Takeuchi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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
Priority claimed from JP3293683A external-priority patent/JPS59160308A/ja
Priority claimed from JP3293783A external-priority patent/JPS59160309A/ja
Priority claimed from JP3530283A external-priority patent/JPS59161113A/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE3483398D1 publication Critical patent/DE3483398D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03H9/562—Monolithic crystal filters comprising a ceramic piezoelectric layer
DE8484301264T 1983-03-02 1984-02-27 Elektromechanisches filter mit mechanisch gekoppelten resonatoren. Expired - Fee Related DE3483398D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3293683A JPS59160308A (ja) 1983-03-02 1983-03-02 メカニカルフィルタ用圧電セラミック振動子およびそれを用いるメカニカルフィルタ
JP3293783A JPS59160309A (ja) 1983-03-02 1983-03-02 メカニカルフイルタ
JP3530283A JPS59161113A (ja) 1983-03-04 1983-03-04 メカニカルフイルタ

Publications (1)

Publication Number Publication Date
DE3483398D1 true DE3483398D1 (de) 1990-11-22

Family

ID=27287910

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484301264T Expired - Fee Related DE3483398D1 (de) 1983-03-02 1984-02-27 Elektromechanisches filter mit mechanisch gekoppelten resonatoren.

Country Status (4)

Country Link
US (1) US4555682A (de)
EP (1) EP0118272B1 (de)
DE (1) DE3483398D1 (de)
NO (1) NO165619C (de)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157108A (ja) * 1984-08-29 1986-03-24 Fujitsu Ltd 圧電セラミツク振動子
US4633204A (en) * 1984-08-29 1986-12-30 Fujitsu Limited Mechanical filter
US5006824A (en) * 1986-04-07 1991-04-09 Rockwell International Corporation Third mode torsional F-M resonator
US5187458A (en) * 1989-09-21 1993-02-16 Nihon Musen Kabushiki Kaisha Composite longitudinal vibration mechanical filter having central frequency deviation elimination means and method of manufacturing same
DE4322144C2 (de) * 1992-07-03 1997-06-05 Murata Manufacturing Co Vibratoreinheit
CN1034535C (zh) * 1993-05-31 1997-04-09 株式会社村田制作所 片型压电共振动元件
US5621263A (en) * 1993-08-09 1997-04-15 Murata Manufacturing Co., Ltd. Piezoelectric resonance component
GB2281159B (en) * 1993-08-17 1997-10-01 Murata Manufacturing Co Ladder-type filter
US5648746A (en) * 1993-08-17 1997-07-15 Murata Manufacturing Co., Ltd. Stacked diezoelectric resonator ladder-type filter with at least one width expansion mode resonator
JP3114526B2 (ja) * 1994-10-17 2000-12-04 株式会社村田製作所 チップ型圧電共振部品
US6424074B2 (en) * 1999-01-14 2002-07-23 The Regents Of The University Of Michigan Method and apparatus for upconverting and filtering an information signal utilizing a vibrating micromechanical device
US20060049717A1 (en) * 2004-09-08 2006-03-09 Frank Liebenow Transformer
US20110068834A1 (en) * 2005-01-07 2011-03-24 Trustees Of Boston University Electro-mechanical oscillating devices and associated methods
CN204886627U (zh) * 2015-07-31 2015-12-16 瑞声光电科技(常州)有限公司 振动电机
KR102138339B1 (ko) * 2018-10-24 2020-07-27 주식회사 엠플러스 사운드 진동 액츄에이터
EP3939708B1 (de) * 2019-03-12 2023-11-08 Alps Alpine Co., Ltd. Elektromagnetische antriebsvorrichtung und betriebsvorrichtung
WO2021115585A1 (en) * 2019-12-11 2021-06-17 Lofelt Gmbh Linear vibration actuator having moving coil and moving magnet
US11831215B2 (en) * 2021-05-06 2023-11-28 Aac Microtech (Changzhou) Co., Ltd. Linear vibration motor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250569B (de) * 1967-09-14 Telefunken Patentverwertungsgesellschaft mbH, Ulm/Donau Mechanisches Filter, das mehrere rechteckfor mige Resonanzkorper aufweist
US3189852A (en) * 1962-04-14 1965-06-15 Toko Radio Coil Kenkyusho Kk Electro-mechanical filters
US3437849A (en) * 1966-11-21 1969-04-08 Motorola Inc Temperature compensation of electrical devices
DE2945243A1 (de) * 1978-11-13 1980-05-14 Fujitsu Ltd Biegeschwingungswandler
US4317093A (en) * 1979-03-01 1982-02-23 Antonio Lungo Electric filter and method of manufacture
JPS5646319A (en) * 1979-09-22 1981-04-27 Yasushi Suzuki Mechanical filter
US4306204A (en) * 1980-04-07 1981-12-15 Rockwell International Corporation Bandpass mechanical filter

Also Published As

Publication number Publication date
EP0118272B1 (de) 1990-10-17
NO165619B (no) 1990-11-26
NO840713L (no) 1984-09-03
EP0118272A2 (de) 1984-09-12
NO165619C (no) 1991-03-06
US4555682A (en) 1985-11-26
EP0118272A3 (en) 1986-07-09

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee