FR1317123A - Appareil à modulation de fréquence - Google Patents

Appareil à modulation de fréquence

Info

Publication number
FR1317123A
FR1317123A FR890570A FR890570A FR1317123A FR 1317123 A FR1317123 A FR 1317123A FR 890570 A FR890570 A FR 890570A FR 890570 A FR890570 A FR 890570A FR 1317123 A FR1317123 A FR 1317123A
Authority
FR
France
Prior art keywords
frequency modulation
modulation device
frequency
modulation
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
FR890570A
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.)
AT&T Inc
Original Assignee
Western Electric Co Inc
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 US96491A external-priority patent/US3183456A/en
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to FR890570A priority Critical patent/FR1317123A/fr
Application granted granted Critical
Publication of FR1317123A publication Critical patent/FR1317123A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F7/00—Parametric amplifiers
    • H03F7/04—Parametric amplifiers using variable-capacitance element; using variable-permittivity element
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/09—Modifications of modulator for regulating the mean frequency
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/10—Angle modulation by means of variable impedance
    • H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
    • H03C3/22—Angle modulation by means of variable impedance by means of a variable reactive element the element being a semiconductor diode, e.g. varicap diode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C7/00—Modulating electromagnetic waves
    • H03C7/02—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas
    • H03C7/025—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices
    • H03C7/027—Modulating electromagnetic waves in transmission lines, waveguides, cavity resonators or radiation fields of antennas using semiconductor devices using diodes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F7/00—Parametric amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
FR890570A 1961-03-17 1962-03-09 Appareil à modulation de fréquence Expired FR1317123A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR890570A FR1317123A (fr) 1961-03-17 1962-03-09 Appareil à modulation de fréquence

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US96491A US3183456A (en) 1961-03-17 1961-03-17 Frequency modulation apparatus
FR890570A FR1317123A (fr) 1961-03-17 1962-03-09 Appareil à modulation de fréquence

Publications (1)

Publication Number Publication Date
FR1317123A true FR1317123A (fr) 1963-02-01

Family

ID=26194735

Family Applications (1)

Application Number Title Priority Date Filing Date
FR890570A Expired FR1317123A (fr) 1961-03-17 1962-03-09 Appareil à modulation de fréquence

Country Status (1)

Country Link
FR (1) FR1317123A (fr)

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