FR3091080B1 - Power amplifier with improved energy consumption - Google Patents

Power amplifier with improved energy consumption Download PDF

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Publication number
FR3091080B1
FR3091080B1 FR1873563A FR1873563A FR3091080B1 FR 3091080 B1 FR3091080 B1 FR 3091080B1 FR 1873563 A FR1873563 A FR 1873563A FR 1873563 A FR1873563 A FR 1873563A FR 3091080 B1 FR3091080 B1 FR 3091080B1
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FR
France
Prior art keywords
amplifier
power
amplifiers
push
threshold
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.)
Active
Application number
FR1873563A
Other languages
French (fr)
Other versions
FR3091080A1 (en
Inventor
Wilfried Demenitroux
Pierre-Yves Mailloux
Kevin Lethien
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
Thales 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 Thales SA filed Critical Thales SA
Priority to FR1873563A priority Critical patent/FR3091080B1/en
Publication of FR3091080A1 publication Critical patent/FR3091080A1/en
Application granted granted Critical
Publication of FR3091080B1 publication Critical patent/FR3091080B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • 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
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H03F1/0266—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A by using a signal derived from the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High frequency amplifiers, e.g. radio frequency amplifiers
    • H03F3/19—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only
    • H03F3/193—High frequency amplifiers, e.g. radio frequency amplifiers with semiconductor devices only with field-effect devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/72—Gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/06—A balun, i.e. balanced to or from unbalanced converter, being present at the input of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/09—A balun, i.e. balanced to or from unbalanced converter, being present at the output of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/18—Indexing scheme relating to amplifiers the bias of the gate of a FET being controlled by a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/192—A hybrid coupler being used at the input of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/204—A hybrid coupler being used at the output of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/78—A comparator being used in a controlling circuit of an amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
    • H03F2203/30015—An input signal dependent control signal controls the bias of an output stage in the SEPP
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/30—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor
    • H03F2203/30042—Indexing scheme relating to single-ended push-pull [SEPP]; Phase-splitters therefor the SEPP bias voltage being controlled by a control signal from a feedforward circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/72—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal
    • H03F2203/7206—Indexing scheme relating to gated amplifiers, i.e. amplifiers which are rendered operative or inoperative by means of a control signal the gated amplifier being switched on or off by a switch in the bias circuit of the amplifier controlling a bias voltage in the amplifier

Abstract

L’amplificateur comporte au moins : un premier amplificateur push-pull (21) ; un deuxième amplificateur push-pull (22) ; un premier coupleur hybride 90° (23), couplé aux entrées desdits amplificateurs (21, 22) et un deuxième coupleur hybride 90° (24) couplé aux sorties desdits amplificateurs (21, 22), lesdits amplificateurs étant balancés par lesdits coupleurs (23, 24) ; des moyens de commande dudit deuxième amplificateur push-pull (22), de telle façon que : ledit deuxième amplificateur (22) est éteint lorsque la puissance d’un signal d’entrée (RFin) dudit amplificateur de puissance est inférieure à un premier seuil ; la puissance dudit deuxième amplificateur (22) étant commandée linéairement en fonction de la puissance dudit signal d’entrée, lorsque cette dernière est comprise entre ledit premier seuil et un deuxième seuil ; lesdits amplificateurs push-pull (21, 22) étant commandés à même puissance lorsque la puissance dudit signal d’entrée dépassant ledit deuxième seuil. Figure pour l’abrégé : Fig.2The amplifier comprises at least: a first push-pull amplifier (21); a second push-pull amplifier (22); a first 90 ° hybrid coupler (23), coupled to the inputs of said amplifiers (21, 22) and a second 90 ° hybrid coupler (24) coupled to the outputs of said amplifiers (21, 22), said amplifiers being balanced by said couplers (23) , 24); means for controlling said second push-pull amplifier (22), such that: said second amplifier (22) is turned off when the power of an input signal (RFin) of said power amplifier is below a first threshold ; the power of said second amplifier (22) being linearly controlled as a function of the power of said input signal, when the latter is between said first threshold and a second threshold; said push-pull amplifiers (21, 22) being driven at the same power when the power of said input signal exceeds said second threshold. Figure for the abstract: Fig. 2

FR1873563A 2018-12-20 2018-12-20 Power amplifier with improved energy consumption Active FR3091080B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1873563A FR3091080B1 (en) 2018-12-20 2018-12-20 Power amplifier with improved energy consumption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1873563A FR3091080B1 (en) 2018-12-20 2018-12-20 Power amplifier with improved energy consumption

Publications (2)

Publication Number Publication Date
FR3091080A1 FR3091080A1 (en) 2020-06-26
FR3091080B1 true FR3091080B1 (en) 2021-04-23

Family

ID=67107564

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1873563A Active FR3091080B1 (en) 2018-12-20 2018-12-20 Power amplifier with improved energy consumption

Country Status (1)

Country Link
FR (1) FR3091080B1 (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004088837A2 (en) * 2003-03-28 2004-10-14 Andrew Corporation Doherty amplifier with output hybrid coupler

Also Published As

Publication number Publication date
FR3091080A1 (en) 2020-06-26

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