GB678777A - Improvements in or relating to radio-frequency power amplifiers - Google Patents

Improvements in or relating to radio-frequency power amplifiers

Info

Publication number
GB678777A
GB678777A GB26727/50A GB2672750A GB678777A GB 678777 A GB678777 A GB 678777A GB 26727/50 A GB26727/50 A GB 26727/50A GB 2672750 A GB2672750 A GB 2672750A GB 678777 A GB678777 A GB 678777A
Authority
GB
United Kingdom
Prior art keywords
phase
grid
valves
valve
drive
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
GB26727/50A
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 Corp
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
Application filed by Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB678777A publication Critical patent/GB678777A/en
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
    • H03F1/07—Doherty-type amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/50—Amplitude modulation by converting angle modulation to amplitude modulation
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
GB26727/50A 1949-11-02 1950-11-02 Improvements in or relating to radio-frequency power amplifiers Expired GB678777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US125025A US2658959A (en) 1949-11-02 1949-11-02 High efficiency radio-frequency power amplifier

Publications (1)

Publication Number Publication Date
GB678777A true GB678777A (en) 1952-09-10

Family

ID=22417885

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26727/50A Expired GB678777A (en) 1949-11-02 1950-11-02 Improvements in or relating to radio-frequency power amplifiers

Country Status (5)

Country Link
US (1) US2658959A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE836509C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR1027429A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB678777A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL156682B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2836665A (en) * 1957-08-29 1958-05-27 James O Weldon Amplifiers
DE1283306B (de) * 1962-03-05 1968-11-21 Standard Elektrik Lorenz Ag Schaltungsanordnung fuer Hochfrequenz-Resonanzverstaerker
JPH05333082A (ja) * 1992-05-30 1993-12-17 Yokogawa Hewlett Packard Ltd 平衡信号供給回路
US5416451A (en) * 1993-09-22 1995-05-16 Motorola, Inc. Circuit and method for balun compensation
EP2323253A1 (en) * 2009-10-26 2011-05-18 Alcatel Lucent Doherty power amplifiers
US8912846B2 (en) 2011-07-25 2014-12-16 Kathrein-Werke Kg Doherty amplifier arrangement
US20130127542A1 (en) 2011-11-17 2013-05-23 Lothar Schmidt Active antenna arrangement with doherty amplifier

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR845728A (fr) * 1938-04-30 1939-08-31 Le Transformateur Dispositif pour la modulation d'une oscillation de haute fréquence ou pour l'amplification d'une oscillation de haute fréquence modulée
NL57174C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1938-12-02
US2282706A (en) * 1938-12-29 1942-05-12 Csf Modulated wave amplifier
BE441445A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1939-06-10
US2248132A (en) * 1940-01-27 1941-07-08 Rca Corp Frequency modulation

Also Published As

Publication number Publication date
NL156682B (nl)
FR1027429A (fr) 1953-05-12
NL79855C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE836509C (de) 1952-04-15
US2658959A (en) 1953-11-10

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