IT1256225B - Procedimento e circuito per la compensazione adattativa delle distorsioni di guadagno di un amplificatore alle microonde con linearizzatore - Google Patents

Procedimento e circuito per la compensazione adattativa delle distorsioni di guadagno di un amplificatore alle microonde con linearizzatore

Info

Publication number
IT1256225B
IT1256225B ITMI922936A ITMI922936A IT1256225B IT 1256225 B IT1256225 B IT 1256225B IT MI922936 A ITMI922936 A IT MI922936A IT MI922936 A ITMI922936 A IT MI922936A IT 1256225 B IT1256225 B IT 1256225B
Authority
IT
Italy
Prior art keywords
ratio
linearizer
amplifier
procedure
circuit
Prior art date
Application number
ITMI922936A
Other languages
English (en)
Inventor
Antonio Abbiati
Carlo Buoli
Original Assignee
Sits Soc It Telecom Siemens
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 Sits Soc It Telecom Siemens filed Critical Sits Soc It Telecom Siemens
Publication of ITMI922936A0 publication Critical patent/ITMI922936A0/it
Priority to ITMI922936A priority Critical patent/IT1256225B/it
Priority to ZA938940A priority patent/ZA938940B/xx
Priority to EP94902695A priority patent/EP0676098B1/en
Priority to ES94902695T priority patent/ES2099580T3/es
Priority to AT94902695T priority patent/ATE150234T1/de
Priority to US08/454,369 priority patent/US5598127A/en
Priority to AU56971/94A priority patent/AU675479B2/en
Priority to DE69308893T priority patent/DE69308893T2/de
Priority to PCT/EP1993/003432 priority patent/WO1994015395A1/en
Priority to BR9307732-7A priority patent/BR9307732A/pt
Priority to CN93112997A priority patent/CN1090445A/zh
Publication of ITMI922936A1 publication Critical patent/ITMI922936A1/it
Priority to NO19952112A priority patent/NO311395B1/no
Priority to FI953145A priority patent/FI953145A7/fi
Application granted granted Critical
Publication of IT1256225B publication Critical patent/IT1256225B/it
Priority to GR970401071T priority patent/GR3023422T3/el

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
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
    • 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits

Landscapes

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

Abstract

Viene descritto un procedimento di compensazione delle distorsioni di guadagno, causate da fenomeni di deriva termica, invecchiamento, etc., in amplificatori alle microonde connessi a linearizzatori di tipo a predistorsione. Il procedimento è riferito a segnali modulati numericamente, ad esempio QAM, in cui il rapporto tra valore di picco e valore medio della potenza del segnale è costante. Poiché detto rapporto resta costante dopo amplificazione solo se l'amplificatore è lineare, viene compiuta una misura dello stesso rapporto all'uscita dell'amplificatore al fine di modificare la caratteristica di distorsione AM/AM della catena linearizzatore/amplificatore per mantenere il valore di detto rapporto in uscita uguale a quello d'ingresso. Viene inoltre descritto un circuito di compensazione relativo al procedimento in oggetto (fig. 1).
ITMI922936A 1992-12-23 1992-12-23 Procedimento e circuito per la compensazione adattativa delle distorsioni di guadagno di un amplificatore alle microonde con linearizzatore IT1256225B (it)

Priority Applications (14)

Application Number Priority Date Filing Date Title
ITMI922936A IT1256225B (it) 1992-12-23 1992-12-23 Procedimento e circuito per la compensazione adattativa delle distorsioni di guadagno di un amplificatore alle microonde con linearizzatore
ZA938940A ZA938940B (en) 1992-12-23 1993-11-30 Procedure and circuit for adaptive compensation of the gain distortions of a microwave amplifier with linearizer.
AU56971/94A AU675479B2 (en) 1992-12-23 1993-12-06 Procedure and circuit for adaptive compensation of the gain distortions of a microwave amplifier with linearizer
BR9307732-7A BR9307732A (pt) 1992-12-23 1993-12-06 Procedimento e circuito para compensação adaptadora das distorções do ganho de um amplificador de microondas com linearizador
AT94902695T ATE150234T1 (de) 1992-12-23 1993-12-06 Verfahren und schaltung zur adaptiven kompensation der verstarkungsverzerrungen eines mikrowellenverstarkers mit hilfe eines linearisierers
US08/454,369 US5598127A (en) 1992-12-23 1993-12-06 Procedure and circuit for adaptive compensation of the gain distortions of a microwave amplifier with linearizer
EP94902695A EP0676098B1 (en) 1992-12-23 1993-12-06 Procedure and circuit for adaptive compensation of the gain distortions of a microwave amplifier with linearizer
DE69308893T DE69308893T2 (de) 1992-12-23 1993-12-06 Verfahren und schaltung zur adaptiven kompensation der verstarkungsverzerrungen eines mikrowellenverstarkers mit hilfe eines linearisierers
PCT/EP1993/003432 WO1994015395A1 (en) 1992-12-23 1993-12-06 Procedure and circuit for adaptive compensation of the gain distortions of a microwave amplifier with linearizer
ES94902695T ES2099580T3 (es) 1992-12-23 1993-12-06 Procedimiento y circuito para realizar una compensacion adaptativa de las distorsiones de ganancia de un amplificador de microondas con linealizador.
CN93112997A CN1090445A (zh) 1992-12-23 1993-12-23 具有线性化电路的微波放大器增益失真的自适应校正的方法和电路
NO19952112A NO311395B1 (no) 1992-12-23 1995-05-29 Fremgangsmåte og krets for adaptiv kompensering av forsterkningsforvrengninger i en mikrobölgeforsterker medlinearisator
FI953145A FI953145A7 (fi) 1992-12-23 1995-06-22 Menetelmä ja piiri linearisointipiiriin liitetyn mikroaaltovahvistimen vahvistuksen vääristymien adaptiiviseksi kompensoimiseksi
GR970401071T GR3023422T3 (en) 1992-12-23 1997-05-15 Procedure and circuit for adaptive compensation of the gain distortions of a microwave amplifier with linearizer.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI922936A IT1256225B (it) 1992-12-23 1992-12-23 Procedimento e circuito per la compensazione adattativa delle distorsioni di guadagno di un amplificatore alle microonde con linearizzatore

Publications (3)

Publication Number Publication Date
ITMI922936A0 ITMI922936A0 (it) 1992-12-23
ITMI922936A1 ITMI922936A1 (it) 1994-06-23
IT1256225B true IT1256225B (it) 1995-11-29

Family

ID=11364515

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI922936A IT1256225B (it) 1992-12-23 1992-12-23 Procedimento e circuito per la compensazione adattativa delle distorsioni di guadagno di un amplificatore alle microonde con linearizzatore

Country Status (14)

Country Link
US (1) US5598127A (it)
EP (1) EP0676098B1 (it)
CN (1) CN1090445A (it)
AT (1) ATE150234T1 (it)
AU (1) AU675479B2 (it)
BR (1) BR9307732A (it)
DE (1) DE69308893T2 (it)
ES (1) ES2099580T3 (it)
FI (1) FI953145A7 (it)
GR (1) GR3023422T3 (it)
IT (1) IT1256225B (it)
NO (1) NO311395B1 (it)
WO (1) WO1994015395A1 (it)
ZA (1) ZA938940B (it)

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FI106413B (fi) * 1996-07-11 2001-01-31 Nokia Mobile Phones Ltd Lineaarisen tehovahvistimen tehonsäätöpiiri
US6438360B1 (en) 1999-07-22 2002-08-20 Motorola, Inc. Amplifier system with load control to produce an amplitude envelope
US6166598A (en) * 1999-07-22 2000-12-26 Motorola, Inc. Power amplifying circuit with supply adjust to control adjacent and alternate channel power
US6160449A (en) * 1999-07-22 2000-12-12 Motorola, Inc. Power amplifying circuit with load adjust for control of adjacent and alternate channel power
US6349216B1 (en) 1999-07-22 2002-02-19 Motorola, Inc. Load envelope following amplifier system
US6211733B1 (en) * 1999-10-22 2001-04-03 Powerwave Technologies, Inc. Predistortion compensation for a power amplifier
US6522197B2 (en) * 2000-04-21 2003-02-18 Paradigm Wireless Systems, Inc. Method and apparatus for optimum biasing of cascaded MOSFET radio-frequency devices
JP2001313532A (ja) * 2000-05-01 2001-11-09 Sony Corp 歪み補償装置
GB2368737B (en) * 2000-10-31 2004-11-10 Roke Manor Research Method and apparatus for controlling an amplifier
US6507244B2 (en) * 2001-05-29 2003-01-14 Koninklijke Philips Electronics N.V. Transmitter with a sliding compression point
US20030067990A1 (en) * 2001-10-01 2003-04-10 Bryant Paul Henry Peak to average power ratio reduction in a digitally-modulated signal
US20030063663A1 (en) * 2001-10-01 2003-04-03 Bryant Paul Henry Multistage equalizer that corrects for linear and nonlinear distortion in a digitally-modulated signal
US7058369B1 (en) 2001-11-21 2006-06-06 Pmc-Sierra Inc. Constant gain digital predistortion controller for linearization of non-linear amplifiers
US7149484B2 (en) * 2002-10-03 2006-12-12 Intel Corporation Portable communication device having adjustable amplification and method therefor
DE10260291A1 (de) * 2002-12-20 2004-07-01 Siemens Ag Elektronische Schaltung zur Informantionsübertragung
EP1592127B1 (en) * 2004-04-29 2008-11-05 Nokia Siemens Networks S.p.A. Analog predistortion linearizer with fixed in advance intermodulation power, method and device
US7899416B2 (en) * 2007-11-14 2011-03-01 Crestcom, Inc. RF transmitter with heat compensation and method therefor
US9048802B2 (en) * 2009-08-17 2015-06-02 Skyworks Solutions, Inc. Radio frequency power amplifier with linearizing predistorter
CN113848380B (zh) * 2021-10-22 2023-10-20 深圳市兆驰数码科技股份有限公司 功率检测电路及方法、直流和相位的检测系统及方法
CN120345178A (zh) * 2023-01-30 2025-07-18 Qorvo美国公司 前端模块中的基于峰值与平均值比（par）的模拟预失真（apd）

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742270C1 (en) * 1987-12-12 1989-02-23 Ant Nachrichtentech Control stage for a radio-frequency power amplifier
JPH07101820B2 (ja) * 1989-12-27 1995-11-01 三菱電機株式会社 低歪高周波増幅装置
IT1239472B (it) * 1990-04-09 1993-11-02 Sits Soc It Telecom Siemens Linearizzatore del tipo a predistorsione per amplificatori di potenza a microonde
US5302914A (en) * 1992-10-20 1994-04-12 At&T Bell Laboratories Method and apparatus for reducing the peak-to-average power in multi-carrier RF communication systems

Also Published As

Publication number Publication date
ES2099580T3 (es) 1997-05-16
NO952112D0 (no) 1995-05-29
FI953145A0 (fi) 1995-06-22
EP0676098A1 (en) 1995-10-11
AU5697194A (en) 1994-07-19
NO311395B1 (no) 2001-11-19
GR3023422T3 (en) 1997-08-29
US5598127A (en) 1997-01-28
CN1090445A (zh) 1994-08-03
BR9307732A (pt) 1999-08-31
EP0676098B1 (en) 1997-03-12
NO952112L (no) 1995-05-29
ITMI922936A1 (it) 1994-06-23
ZA938940B (en) 1994-08-02
DE69308893T2 (de) 1997-09-04
AU675479B2 (en) 1997-02-06
ATE150234T1 (de) 1997-03-15
FI953145A7 (fi) 1995-06-22
WO1994015395A1 (en) 1994-07-07
ITMI922936A0 (it) 1992-12-23
DE69308893D1 (de) 1997-04-17

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19961218