FR2235532B1 - - Google Patents

Info

Publication number
FR2235532B1
FR2235532B1 FR7324074A FR7324074A FR2235532B1 FR 2235532 B1 FR2235532 B1 FR 2235532B1 FR 7324074 A FR7324074 A FR 7324074A FR 7324074 A FR7324074 A FR 7324074A FR 2235532 B1 FR2235532 B1 FR 2235532B1
Authority
FR
France
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
FR7324074A
Other languages
French (fr)
Other versions
FR2235532A1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7324074A priority Critical patent/FR2235532A1/en
Publication of FR2235532A1 publication Critical patent/FR2235532A1/en
Application granted granted Critical
Publication of FR2235532B1 publication Critical patent/FR2235532B1/fr
Granted 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
    • H03H9/58—Multiple crystal filters
    • H03H9/60—Electric coupling means therefor
    • 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
    • H03H9/566—Electric coupling means therefor
FR7324074A 1973-06-29 1973-06-29 Adjustable frequency piezo-electric filter - material resonance is obtained by exciting through range of impedance modes Granted FR2235532A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7324074A FR2235532A1 (en) 1973-06-29 1973-06-29 Adjustable frequency piezo-electric filter - material resonance is obtained by exciting through range of impedance modes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7324074A FR2235532A1 (en) 1973-06-29 1973-06-29 Adjustable frequency piezo-electric filter - material resonance is obtained by exciting through range of impedance modes

Publications (2)

Publication Number Publication Date
FR2235532A1 FR2235532A1 (en) 1975-01-24
FR2235532B1 true FR2235532B1 (en) 1979-01-26

Family

ID=9121839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7324074A Granted FR2235532A1 (en) 1973-06-29 1973-06-29 Adjustable frequency piezo-electric filter - material resonance is obtained by exciting through range of impedance modes

Country Status (1)

Country Link
FR (1) FR2235532A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511202A (en) * 1981-12-29 1985-04-16 Fujitsu Limited Ceramic resonator and a ceramic filter using the same
US4454444A (en) * 1982-02-22 1984-06-12 Fujitsu Limited LiTaO3 Piezoelectric resonator
GB2214348A (en) * 1988-01-07 1989-08-31 Korbashov Jury Mikhailovich Tunable piezoceramic resonator
GB0308913D0 (en) * 2003-04-17 2003-05-21 Koninkl Philips Electronics Nv Method of, and circuit for,broadening the frequency band of frequency dependentloads
KR20190067710A (en) 2017-12-07 2019-06-17 인피니언 테크놀로지스 아게 Tunable resonator element, filter circuit and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3047823A (en) * 1959-05-07 1962-07-31 Panoramic Radio Products Inc Tunable piezo-electric crystal

Also Published As

Publication number Publication date
FR2235532A1 (en) 1975-01-24

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Legal Events

Date Code Title Description
ST Notification of lapse