FR2382133A1 - Dispositif d'accord d'un resonateur et synthetiseur utilisant un tel dispositif - Google Patents

Dispositif d'accord d'un resonateur et synthetiseur utilisant un tel dispositif

Info

Publication number
FR2382133A1
FR2382133A1 FR7705584A FR7705584A FR2382133A1 FR 2382133 A1 FR2382133 A1 FR 2382133A1 FR 7705584 A FR7705584 A FR 7705584A FR 7705584 A FR7705584 A FR 7705584A FR 2382133 A1 FR2382133 A1 FR 2382133A1
Authority
FR
France
Prior art keywords
resonator
device coupled
frequency oscillator
tuning circuit
variable frequency
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.)
Granted
Application number
FR7705584A
Other languages
English (en)
Other versions
FR2382133B1 (fr
Inventor
Alain Parniere
Lazare Argintaru
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7705584A priority Critical patent/FR2382133A1/fr
Publication of FR2382133A1 publication Critical patent/FR2382133A1/fr
Application granted granted Critical
Publication of FR2382133B1 publication Critical patent/FR2382133B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • H03L7/183—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number
    • H03L7/187—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop a time difference being used for locking the loop, the counter counting between fixed numbers or the frequency divider dividing by a fixed number using means for coarse tuning the voltage controlled oscillator of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/06—Cavity resonators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)

Abstract

La présente invention concerne les dispositifs d'accord d'oscillateurs commandés en fréquence électroniquement. Elle consiste dans l'adjonction d'un dispositif d'accord mécanique variable qui, dans l'exemple décrit, est une sonde 10, plongeant dans le résonateur de l'oscillateur, et entraînée par l'organe de commande de la valeur du chiffre de rang le plus élevé d'un diviseur incorporé à la boucle d'asservissement. Cette disposition permet de réduire considérablement la largeur de bande de l'accord électronique, donc d'augmenter la surtension du résonateur et également de réaliser le codage binaire du chiffre concerné par des moyens optoélectroniques plus fiables que les habituels codages électromecaniques. L'invention s'applique aux générateurs de fréquence à pas variable appelé communément synthétiseurs à boucle d'asservissement.
FR7705584A 1977-02-25 1977-02-25 Dispositif d'accord d'un resonateur et synthetiseur utilisant un tel dispositif Granted FR2382133A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7705584A FR2382133A1 (fr) 1977-02-25 1977-02-25 Dispositif d'accord d'un resonateur et synthetiseur utilisant un tel dispositif

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7705584A FR2382133A1 (fr) 1977-02-25 1977-02-25 Dispositif d'accord d'un resonateur et synthetiseur utilisant un tel dispositif

Publications (2)

Publication Number Publication Date
FR2382133A1 true FR2382133A1 (fr) 1978-09-22
FR2382133B1 FR2382133B1 (fr) 1981-10-02

Family

ID=9187246

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705584A Granted FR2382133A1 (fr) 1977-02-25 1977-02-25 Dispositif d'accord d'un resonateur et synthetiseur utilisant un tel dispositif

Country Status (1)

Country Link
FR (1) FR2382133A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012656A1 (fr) * 1978-12-15 1980-06-25 Thomson-Csf Dispositif d'accord automatique d'un résonateur et synthétiseur utilisant un tel dispositif

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0012656A1 (fr) * 1978-12-15 1980-06-25 Thomson-Csf Dispositif d'accord automatique d'un résonateur et synthétiseur utilisant un tel dispositif
FR2444368A1 (fr) * 1978-12-15 1980-07-11 Thomson Csf Dispositif d'accord automatique d'un resonateur et synthetiseur utilisant un tel dispositif

Also Published As

Publication number Publication date
FR2382133B1 (fr) 1981-10-02

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Legal Events

Date Code Title Description
ST Notification of lapse