FR903247A - Circuit générateur d'oscillations électriques à haute fréquence - Google Patents

Circuit générateur d'oscillations électriques à haute fréquence

Info

Publication number
FR903247A
FR903247A FR903247DA FR903247A FR 903247 A FR903247 A FR 903247A FR 903247D A FR903247D A FR 903247DA FR 903247 A FR903247 A FR 903247A
Authority
FR
France
Prior art keywords
high frequency
generator circuit
frequency electrical
electrical oscillations
oscillations generator
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
Application number
Other languages
English (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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Application granted granted Critical
Publication of FR903247A publication Critical patent/FR903247A/fr
Expired 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
    • H03H9/545—Filters comprising resonators of piezoelectric or electrostrictive material including active elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
    • 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
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
FR903247D 1943-04-12 1944-04-07 Circuit générateur d'oscillations électriques à haute fréquence Expired FR903247A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH587399X 1943-04-12

Publications (1)

Publication Number Publication Date
FR903247A true FR903247A (fr) 1945-09-27

Family

ID=4521893

Family Applications (1)

Application Number Title Priority Date Filing Date
FR903247D Expired FR903247A (fr) 1943-04-12 1944-04-07 Circuit générateur d'oscillations électriques à haute fréquence

Country Status (3)

Country Link
US (1) US2444998A (fr)
FR (1) FR903247A (fr)
GB (1) GB587399A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2471085A (en) * 1947-06-28 1949-05-24 Sinclair Refining Co Fluid catalyst process for the conversion of hydrocarbons
US2702427A (en) * 1948-03-13 1955-02-22 Roberts Shepard Method of making electromechanically sensitive material
US2878454A (en) * 1953-09-03 1959-03-17 Motorola Inc Piezoelectric crystal filter
US2939089A (en) * 1958-01-06 1960-05-31 Philco Corp Signal generating circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1996504A (en) * 1933-04-12 1935-04-02 Bell Telephone Labor Inc Wave filter
US1994220A (en) * 1934-01-03 1935-03-12 Hormel August Metal sheet drying oven
US2306555A (en) * 1940-05-23 1942-12-29 Research Corp Method for frequency control

Also Published As

Publication number Publication date
GB587399A (en) 1947-04-24
US2444998A (en) 1948-07-13

Similar Documents

Publication Publication Date Title
FR988420A (fr) Disjoncteurs
FR950714A (fr) Générateur d'impulsions à haute fréquence
FR932218A (fr) Transformateur d'impédance à haute fréquence
FR1108701A (fr) Perfectionnements aux générateurs d'oscillations à haute fréquence
FR923062A (fr) Montage amplificateur d'oscillations électriques
FR938639A (fr) Dispositif à décharge à haute fréquence
FR970485A (fr) Perfectionnements aux générateurs d'oscillations électriques
CH242260A (de) Schaltung zur Phasenmodulation einer elektrischen Schwingung.
CH241543A (de) Schaltung zur Frequenz- oder Phasenmodulation von elektrischen Schwingungen.
FR987977A (fr) Perfectionnements à la réception d'oscillations électriques modulées en fréquence
FR983000A (fr) Circuit d'accord hyperfréquence
AT168016B (de) Schaltung zur Expansion von elektrischen Schwingungen
FR897190A (fr) Génératrice de courant à haute fréquence
FR951462A (fr) Variomètre à haute fréquence
FR939288A (fr) Perfectionnements aux générateurs d'oscillation à haute fréquence
FR901750A (fr) Montage destiné à la transmission d'oscillations électriques de fréquence élevée
FR977117A (fr) Générateur d'oscillations électriques
CA414433A (fr) Generateur d'oscillations electriques
FR908466A (fr) Perfectionnements aux générateurs d'oscillations électriques
FR940583A (fr) Disjoncteur
FR902102A (fr) Générateur de fréquences harmoniques
FR901660A (fr) Repérage de la phase d'une oscillation
ES163148A1 (es) Un montaje para la modulación en frecuencia de oscilaciones eléctricas
IE17990L (en) Electrical oscillators
ES160760A1 (es) Un montaje eléctrico destinado a mantener constante en límites estrechos la frecuencia portadora de una oscilación modulada en frecuencia