IL104926A - FR amplifier including linearization - Google Patents

FR amplifier including linearization

Info

Publication number
IL104926A
IL104926A IL10492693A IL10492693A IL104926A IL 104926 A IL104926 A IL 104926A IL 10492693 A IL10492693 A IL 10492693A IL 10492693 A IL10492693 A IL 10492693A IL 104926 A IL104926 A IL 104926A
Authority
IL
Israel
Prior art keywords
power amplifier
loop
channel
transmit
frequency
Prior art date
Application number
IL10492693A
Other languages
English (en)
Hebrew (he)
Other versions
IL104926A0 (en
Original Assignee
Motorola 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 Motorola Ltd filed Critical Motorola Ltd
Publication of IL104926A0 publication Critical patent/IL104926A0/xx
Publication of IL104926A publication Critical patent/IL104926A/en

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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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
    • H03F1/3247—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using feedback acting on predistortion circuits
    • 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
    • H03F1/3294—Acting on the real and imaginary components of the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/57—Separate feedback of real and complex signals being present
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
    • H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
    • H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
IL10492693A 1992-03-02 1993-03-02 FR amplifier including linearization IL104926A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9204497A GB2265270B (en) 1992-03-02 1992-03-02 Rf power amplifier with linearization

Publications (2)

Publication Number Publication Date
IL104926A0 IL104926A0 (en) 1993-07-08
IL104926A true IL104926A (en) 1996-05-14

Family

ID=10711357

Family Applications (1)

Application Number Title Priority Date Filing Date
IL10492693A IL104926A (en) 1992-03-02 1993-03-02 FR amplifier including linearization

Country Status (14)

Country Link
EP (1) EP0584312B1 (pl)
JP (1) JP3070096B2 (pl)
KR (1) KR100314327B1 (pl)
AT (1) ATE166191T1 (pl)
AU (1) AU658269B2 (pl)
CA (1) CA2109063C (pl)
DE (1) DE69318490T2 (pl)
DK (1) DK0584312T3 (pl)
ES (1) ES2116440T3 (pl)
GB (2) GB2265270B (pl)
HU (1) HU214127B (pl)
IL (1) IL104926A (pl)
PL (1) PL170401B1 (pl)
WO (1) WO1993018581A1 (pl)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2272133B (en) * 1992-11-02 1996-06-12 Motorola Inc Radio system
GB2281668B (en) * 1993-08-20 1997-10-08 Motorola Inc Radio transmitter with power amplifier linearizer
CN1114847A (zh) * 1993-08-20 1996-01-10 莫托罗拉公司 具有功率放大器线性化电路的无线电发射机
GB2282290B (en) * 1993-09-09 1997-11-19 Motorola Israel Ltd Radio transmitter with power amplifier linearizer
GB2287595B (en) * 1994-03-09 1997-03-05 Motorola Ltd Method for amplitude training in a linear power amplifier
GB2287371B (en) * 1994-03-11 1998-12-16 Motorola Israel Ltd Radio transmitter power amplifier calibration
GB2293935B (en) * 1994-10-03 1999-07-14 Linear Modulation Tech Automatic calibration of carrier suppression and loop phase in a cartesian amplifier
GB2301247A (en) * 1995-05-22 1996-11-27 Univ Bristol A cartesian loop transmitter amplifier
AU3339397A (en) 1996-06-19 1998-01-07 Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V. Pre-distortion for a non-linear transmission path in the high frequency range
DE19631388C2 (de) * 1996-06-19 1998-07-02 Fraunhofer Ges Forschung Verfahren zum Vorverzerren eines über eine nichtlineare Übertragungsstrecke zu übertragenden Signals und Schaltungsanordnung zum Durchführung des Verfahrens
SE506841C2 (sv) * 1996-06-28 1998-02-16 Ericsson Telefon Ab L M Anordning och förfarande för fasdistorsionskompensering
GB2329538A (en) * 1997-09-19 1999-03-24 Motorola Israel Ltd Reducing splatter from TDMA transmitter
US6215986B1 (en) 1997-09-26 2001-04-10 Nortel Networks Corporation Reducing radio transmitter distortion
GB2331202A (en) * 1997-11-03 1999-05-12 Wireless Systems Int Ltd Radio telemetry system
US6112059A (en) * 1997-11-12 2000-08-29 Motorola, Inc. Off-channel leakage power monitor apparatus and method
GB2337169A (en) * 1998-05-07 1999-11-10 Nokia Mobile Phones Ltd An adaptive predistorter for an amplifier
GB9906417D0 (en) * 1999-03-19 1999-05-12 Simoco Int Ltd Radio transmitters
DE19927952A1 (de) 1999-06-18 2001-01-04 Fraunhofer Ges Forschung Vorrichtung und Verfahren zum Vorverzerren eines über eine nicht-lineare Übertragungsstrecke zu übertragenden Übertragungssignals
US7409007B1 (en) * 1999-09-14 2008-08-05 Lucent Technologies Inc. Method and apparatus for reducing adjacent channel power in wireless communication systems
TW498664B (en) 1999-09-17 2002-08-11 Qualcomm Inc Method and apparatus for rotating a phase of a modulated signal
WO2001029963A1 (en) * 1999-10-20 2001-04-26 Lucent Technologies, Inc. Adaptive digital predistortion for amplifier linearization
WO2001063750A1 (en) 2000-02-24 2001-08-30 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. System for reducing adjacent-channel interference by pre-linearization and pre-distortion
WO2001065722A2 (de) * 2000-03-03 2001-09-07 Siemens Aktiengesellschaft Verfahren und sendeschaltung zur erzeugung eines sendesignals
WO2002087097A1 (fr) 2001-04-18 2002-10-31 Fujitsu Limited Dispositif de correction de distorsion
JP4168259B2 (ja) * 2003-02-21 2008-10-22 日本電気株式会社 非線形歪補償回路および非線形歪補償方法ならびに送信回路
US7915954B2 (en) 2004-01-16 2011-03-29 Qualcomm, Incorporated Amplifier predistortion and autocalibration method and apparatus
JP4336968B2 (ja) 2004-02-20 2009-09-30 日本電気株式会社 移動体通信機器および送信電力制御方法
JP4602851B2 (ja) * 2005-06-29 2010-12-22 三菱電機株式会社 歪み補償回路、送信機および歪み補償方法
US20090033418A1 (en) * 2007-08-03 2009-02-05 M/A-Com, Inc. Training sequence and digital linearization process for power amplifier
US20100022209A1 (en) * 2008-07-25 2010-01-28 Motorola, Inc Method and apparatus for reducing peak current variation in a radio
JP5375683B2 (ja) 2010-03-10 2013-12-25 富士通株式会社 通信装置および電力補正方法
US9655069B2 (en) 2011-09-09 2017-05-16 Vixs Systems, Inc. Dynamic transmitter calibration
JP2017135555A (ja) 2016-01-27 2017-08-03 富士通株式会社 無線装置及び歪補償方法
EP3252949B1 (en) 2016-06-01 2020-03-18 Intel IP Corporation Methods and devices for predistortion of signals
KR101815118B1 (ko) * 2017-06-02 2018-01-30 주식회사 케이알에프 멀티 밴드용 전력 증폭 장치 및 그를 이용한 복수의 주파수 대역 신호 증폭 방법
US10658982B1 (en) 2018-12-21 2020-05-19 Motorola Solutions, Inc. Dynamically linearizing multi-carrier power amplifiers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482799A1 (fr) * 1980-05-14 1981-11-20 Lgt Lab Gen Telecomm Dispositif de precorrection de produits de non linearite et systeme de transmission de signaux de television comportant de tel dispositif
GB2191660B (en) * 1986-06-14 1990-04-25 Marconi Instruments Ltd Measuring adjacent channel power
US5066923A (en) * 1990-10-31 1991-11-19 Motorola, Inc. Linear transmitter training method and apparatus
JPH05121958A (ja) * 1991-10-29 1993-05-18 Saitama Nippon Denki Kk 直線増幅装置の歪補償制御方式

Also Published As

Publication number Publication date
AU658269B2 (en) 1995-04-06
GB2293509A (en) 1996-03-27
EP0584312A1 (en) 1994-03-02
CA2109063C (en) 2002-12-17
GB9204497D0 (en) 1992-04-15
HUT67646A (en) 1995-04-28
HU9303114D0 (en) 1994-01-28
JPH06507772A (ja) 1994-09-01
DE69318490T2 (de) 1999-01-07
JP3070096B2 (ja) 2000-07-24
DK0584312T3 (da) 1999-01-25
DE69318490D1 (de) 1998-06-18
AU3498993A (en) 1993-10-05
HK1000814A1 (en) 1998-05-01
PL170401B1 (pl) 1996-12-31
ATE166191T1 (de) 1998-05-15
CA2109063A1 (en) 1993-09-03
KR100314327B1 (ko) 2001-12-28
IL104926A0 (en) 1993-07-08
GB2265270A (en) 1993-09-22
HU214127B (en) 1997-12-29
GB2265270B (en) 1996-06-12
GB9522297D0 (en) 1996-01-03
WO1993018581A1 (en) 1993-09-16
ES2116440T3 (es) 1998-07-16
EP0584312B1 (en) 1998-05-13
GB2293509B (en) 1996-06-12

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