FR846889A - Perfectionnements aux émetteurs d'ondes porteuses moudlées - Google Patents

Perfectionnements aux émetteurs d'ondes porteuses moudlées

Info

Publication number
FR846889A
FR846889A FR846889DA FR846889A FR 846889 A FR846889 A FR 846889A FR 846889D A FR846889D A FR 846889DA FR 846889 A FR846889 A FR 846889A
Authority
FR
France
Prior art keywords
carrier wave
wave transmitters
ground carrier
ground
transmitters
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co 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
Application filed by Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR846889A publication Critical patent/FR846889A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/52—Modulators in which carrier or one sideband is wholly or partially suppressed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators
    • H03F1/07—Doherty-type amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
FR846889D 1937-12-01 1938-12-01 Perfectionnements aux émetteurs d'ondes porteuses moudlées Expired FR846889A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33252/37A GB506660A (en) 1937-12-01 1937-12-01 Improvements in or relating to modulated carrier wave transmitters

Publications (1)

Publication Number Publication Date
FR846889A true FR846889A (fr) 1939-09-27

Family

ID=10350509

Family Applications (1)

Application Number Title Priority Date Filing Date
FR846889D Expired FR846889A (fr) 1937-12-01 1938-12-01 Perfectionnements aux émetteurs d'ondes porteuses moudlées

Country Status (4)

Country Link
US (1) US2238255A (fr)
FR (1) FR846889A (fr)
GB (1) GB506660A (fr)
NL (1) NL66638C (fr)

Also Published As

Publication number Publication date
US2238255A (en) 1941-04-15
GB506660A (en) 1939-06-01
NL66638C (fr)

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