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WO2001058026A3 - Super-linear multi-carrier power amplifier - Google Patents

Super-linear multi-carrier power amplifier Download PDF

Info

Publication number
WO2001058026A3
WO2001058026A3 PCT/IL2000/000072 IL0000072W WO0158026A3 WO 2001058026 A3 WO2001058026 A3 WO 2001058026A3 IL 0000072 W IL0000072 W IL 0000072W WO 0158026 A3 WO0158026 A3 WO 0158026A3
Authority
WO
WIPO (PCT)
Prior art keywords
signals
super
power amplifier
error signal
input
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.)
Ceased
Application number
PCT/IL2000/000072
Other languages
French (fr)
Other versions
WO2001058026A2 (en
Inventor
Yuval Shalom
Danny Arison
Kalman Kaufman
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.)
Wiseband Communications Ltd
Original Assignee
Wiseband Communications 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 Wiseband Communications Ltd filed Critical Wiseband Communications Ltd
Priority to AU2000223178A priority Critical patent/AU2000223178A1/en
Priority to PCT/IL2000/000072 priority patent/WO2001058026A2/en
Publication of WO2001058026A2 publication Critical patent/WO2001058026A2/en
Anticipated expiration legal-status Critical
Publication of WO2001058026A3 publication Critical patent/WO2001058026A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • 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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H03F1/3229—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction
    • 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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0433—Circuits with power amplifiers with linearisation using feedback
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0441—Circuits with power amplifiers with linearisation using feed-forward

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)

Abstract

A super-linear feedforward amplifier (100), for amplifying radio-frequency input signals produced in one or more frequency channels over an input band, includes a radio-frequency power amplifier (108), which amplifies the signals. A signal cancellation circuit loop (103) generates an error signal responsive to distortion products in the amplified signals. A digital correction block (104) digitally equalizes the input signals responsive to a transfer function of the amplifier, whereby the input signals are substantially canceled out of the error signal over the entire input band. An error cancellation circuit loop (105) subtracts the error signal from the amplified signals to generate a linearized output signal.
PCT/IL2000/000072 2000-02-03 2000-02-03 Super-linear multi-carrier power amplifier Ceased WO2001058026A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2000223178A AU2000223178A1 (en) 2000-02-03 2000-02-03 Super-linear multi-carrier power amplifier
PCT/IL2000/000072 WO2001058026A2 (en) 2000-02-03 2000-02-03 Super-linear multi-carrier power amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IL2000/000072 WO2001058026A2 (en) 2000-02-03 2000-02-03 Super-linear multi-carrier power amplifier

Publications (2)

Publication Number Publication Date
WO2001058026A2 WO2001058026A2 (en) 2001-08-09
WO2001058026A3 true WO2001058026A3 (en) 2012-01-05

Family

ID=11042943

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2000/000072 Ceased WO2001058026A2 (en) 2000-02-03 2000-02-03 Super-linear multi-carrier power amplifier

Country Status (2)

Country Link
AU (1) AU2000223178A1 (en)
WO (1) WO2001058026A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2992502B1 (en) * 2012-06-26 2016-10-14 Ecam Rennes - Louis De Broglie METHOD AND DEVICE FOR LINEARIZING A POWER AMPLIFIER, CORRESPONDING COMPUTER PROGRAM.
US9118366B2 (en) 2012-09-12 2015-08-25 Mediatek Singapore Pte. Ltd. Method and apparatus for calibrating an envelope tracking system
GB2624195A (en) * 2022-11-09 2024-05-15 Qinetiq Ltd Signal processor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334946A (en) * 1990-04-25 1994-08-02 British Technology Group Limited Apparatus and method for reducing distortion in amplification
US5574400A (en) * 1994-03-31 1996-11-12 Nec Corporation Feedforward amplifier with reduced distortion in wide band
US5929704A (en) * 1998-02-20 1999-07-27 Spectrian Control of RF error extraction using auto-calibrating RF correlator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5334946A (en) * 1990-04-25 1994-08-02 British Technology Group Limited Apparatus and method for reducing distortion in amplification
US5574400A (en) * 1994-03-31 1996-11-12 Nec Corporation Feedforward amplifier with reduced distortion in wide band
US5929704A (en) * 1998-02-20 1999-07-27 Spectrian Control of RF error extraction using auto-calibrating RF correlator

Also Published As

Publication number Publication date
AU2000223178A8 (en) 2012-02-02
WO2001058026A2 (en) 2001-08-09
AU2000223178A1 (en) 2001-08-14

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