EP1346473A4 - Commande de boucle d'amplificateur a correction aval faisant intervenir le traitement de signal a frequence intermediaire - Google Patents

Commande de boucle d'amplificateur a correction aval faisant intervenir le traitement de signal a frequence intermediaire

Info

Publication number
EP1346473A4
EP1346473A4 EP01991548A EP01991548A EP1346473A4 EP 1346473 A4 EP1346473 A4 EP 1346473A4 EP 01991548 A EP01991548 A EP 01991548A EP 01991548 A EP01991548 A EP 01991548A EP 1346473 A4 EP1346473 A4 EP 1346473A4
Authority
EP
European Patent Office
Prior art keywords
feed
signal processing
loop control
forward amplifier
control utilizing
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.)
Withdrawn
Application number
EP01991548A
Other languages
German (de)
English (en)
Other versions
EP1346473A2 (fr
Inventor
Charles Gentzler
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.)
Paradigm Wireless Systems Inc
Original Assignee
Paradigm Wireless Systems 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 Paradigm Wireless Systems Inc filed Critical Paradigm Wireless Systems Inc
Publication of EP1346473A2 publication Critical patent/EP1346473A2/fr
Publication of EP1346473A4 publication Critical patent/EP1346473A4/fr
Withdrawn legal-status Critical Current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
    • H03F1/32—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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
EP01991548A 2000-12-22 2001-12-21 Commande de boucle d'amplificateur a correction aval faisant intervenir le traitement de signal a frequence intermediaire Withdrawn EP1346473A4 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US25766100P 2000-12-22 2000-12-22
US257661P 2000-12-22
PCT/US2001/050336 WO2002052717A2 (fr) 2000-12-22 2001-12-21 Commande de boucle d'amplificateur a correction aval faisant intervenir le traitement de signal a frequence intermediaire

Publications (2)

Publication Number Publication Date
EP1346473A2 EP1346473A2 (fr) 2003-09-24
EP1346473A4 true EP1346473A4 (fr) 2004-08-04

Family

ID=22977213

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01991548A Withdrawn EP1346473A4 (fr) 2000-12-22 2001-12-21 Commande de boucle d'amplificateur a correction aval faisant intervenir le traitement de signal a frequence intermediaire

Country Status (5)

Country Link
EP (1) EP1346473A4 (fr)
KR (1) KR20030090616A (fr)
CN (1) CN1483242A (fr)
TW (1) TW525344B (fr)
WO (2) WO2002052717A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100449938C (zh) * 2002-07-05 2009-01-07 中兴通讯股份有限公司 前馈线性功率放大器误差环自适应对消控制方法
US7313370B2 (en) * 2002-12-27 2007-12-25 Nokia Siemens Networks Oy Intermodulation product cancellation in communications
US7756493B2 (en) * 2005-04-05 2010-07-13 Powerwave Technologies, Inc. Feed forward amplifier system and method using the pilot frequency from a positive feedback pilot generation and detection circuit to improve second loop convergence
US20090196133A1 (en) * 2008-02-04 2009-08-06 Chia-Wei Liang Signal processing apparatus for optical disc and method thereof
CA3025396A1 (fr) * 2016-06-10 2017-12-14 At&T Intellectual Property I, L.P. Procede et appareil devant etre utilises avec un systeme d'antennes radio distribue
CN107395163A (zh) * 2017-07-10 2017-11-24 东南大学 数字电路控制的模拟延时线电路

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999048A (en) * 1998-01-13 1999-12-07 Lucent Technologies Inc. Method and apparatus for spread spectrum pilot extraction for RF amplifiers
EP0982850A1 (fr) * 1998-08-20 2000-03-01 Lucent Technologies Inc. Procédé et appareil pour ajuster le signal de pilote par rapport au signal d'entrée

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5768699A (en) * 1995-10-20 1998-06-16 Aml Communications, Inc. Amplifier with detuned test signal cancellation for improved wide-band frequency response
US5977826A (en) * 1998-03-13 1999-11-02 Behan; Scott T. Cascaded error correction in a feed forward amplifier
US6169450B1 (en) * 1998-11-13 2001-01-02 Powerwave Technologies, Inc. Feed forward compensation using phase and time modulation
US6275106B1 (en) * 2000-02-25 2001-08-14 Spectrian Corporation Spectral distortion monitor for controlling pre-distortion and feed-forward linearization of rf power amplifier
US6359508B1 (en) * 2000-08-17 2002-03-19 Spectrian Corporation Distortion detection apparatus for controlling predistortion, carrier cancellation and feed-forward cancellation in linear RF power amplifiers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5999048A (en) * 1998-01-13 1999-12-07 Lucent Technologies Inc. Method and apparatus for spread spectrum pilot extraction for RF amplifiers
EP0982850A1 (fr) * 1998-08-20 2000-03-01 Lucent Technologies Inc. Procédé et appareil pour ajuster le signal de pilote par rapport au signal d'entrée

Also Published As

Publication number Publication date
EP1346473A2 (fr) 2003-09-24
CN1483242A (zh) 2004-03-17
KR20030090616A (ko) 2003-11-28
WO2002052717A3 (fr) 2003-04-03
WO2002052717A2 (fr) 2002-07-04
TW525344B (en) 2003-03-21
WO2002052718A2 (fr) 2002-07-04

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Owner name: PARADIGM WIRELESS SYSTEMS, INC.

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Designated state(s): DE GB

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Effective date: 20040617

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Ipc: 7H 03F 1/32 B

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