ATE549793T1 - Vorwärtskopplungsverstärkersystem und verfahren unter nutzung der pilotfrequenz aus der pilotsignalerzeugung mit positiver rückkopplung und detektionsschaltung zur verbesserung der zweitschleifenkonvergenz - Google Patents

Vorwärtskopplungsverstärkersystem und verfahren unter nutzung der pilotfrequenz aus der pilotsignalerzeugung mit positiver rückkopplung und detektionsschaltung zur verbesserung der zweitschleifenkonvergenz

Info

Publication number
ATE549793T1
ATE549793T1 AT06758256T AT06758256T ATE549793T1 AT E549793 T1 ATE549793 T1 AT E549793T1 AT 06758256 T AT06758256 T AT 06758256T AT 06758256 T AT06758256 T AT 06758256T AT E549793 T1 ATE549793 T1 AT E549793T1
Authority
AT
Austria
Prior art keywords
pilot
loop
frequency
improve
detection circuit
Prior art date
Application number
AT06758256T
Other languages
English (en)
Inventor
Richard Braithwaite
Original Assignee
Powerwave Technologies 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 Powerwave Technologies Inc filed Critical Powerwave Technologies Inc
Application granted granted Critical
Publication of ATE549793T1 publication Critical patent/ATE549793T1/de

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
    • H03F1/3235—Modifications of amplifiers to reduce non-linear distortion using feed-forward using a loop for error extraction and another loop for error subtraction using a pilot signal
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/198—A hybrid coupler being used as coupling circuit between stages of an amplifier circuit
    • 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
    • H03F2201/3212—Using a control circuit to adjust amplitude and phase of a signal in a signal path
    • 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
    • H03F2201/3215—To increase the output power or efficiency

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
AT06758256T 2005-04-05 2006-04-03 Vorwärtskopplungsverstärkersystem und verfahren unter nutzung der pilotfrequenz aus der pilotsignalerzeugung mit positiver rückkopplung und detektionsschaltung zur verbesserung der zweitschleifenkonvergenz ATE549793T1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US66836305P 2005-04-05 2005-04-05
US67090805P 2005-04-13 2005-04-13
US11/392,170 US7756493B2 (en) 2005-04-05 2006-03-29 Feed forward amplifier system and method using the pilot frequency from a positive feedback pilot generation and detection circuit to improve second loop convergence
PCT/US2006/012202 WO2006110360A2 (en) 2005-04-05 2006-04-03 Feed forward amplifier with detection circuit to improve second loop convergence

Publications (1)

Publication Number Publication Date
ATE549793T1 true ATE549793T1 (de) 2012-03-15

Family

ID=37070467

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06758256T ATE549793T1 (de) 2005-04-05 2006-04-03 Vorwärtskopplungsverstärkersystem und verfahren unter nutzung der pilotfrequenz aus der pilotsignalerzeugung mit positiver rückkopplung und detektionsschaltung zur verbesserung der zweitschleifenkonvergenz

Country Status (5)

Country Link
US (1) US7756493B2 (de)
EP (1) EP1867120B1 (de)
CN (1) CN101199112B (de)
AT (1) ATE549793T1 (de)
WO (1) WO2006110360A2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7995976B2 (en) * 2005-04-05 2011-08-09 Powerwave Technologies, Inc. System and method using the pilot frequency from a positive feedback pilot system to improve second loop convergence for a feedforward amplifier
US8446992B2 (en) * 2010-01-22 2013-05-21 Harris Corporation Digital exciter having pilot signal compensation
US8947164B2 (en) 2012-05-18 2015-02-03 Microsemi Corporation Integrated technique for enhanced power amplifier forward power detection
US9787460B2 (en) * 2015-07-16 2017-10-10 LGS Innovations LLC Self-interference channel estimation system and method
US11502650B2 (en) 2020-06-29 2022-11-15 Kabushiki Kaisha Toshiba Power amplifier and method of linearizing a power amplifier

Family Cites Families (24)

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Publication number Priority date Publication date Assignee Title
CA2046413C (en) * 1990-07-11 1994-01-04 Shoichi Narahashi Feed-forward amplifier
US5923214A (en) * 1997-12-17 1999-07-13 Motorola, Inc. Feedforward amplifier network with swept pilot tone for reducing distortion generated by a power amplifier
KR100259849B1 (ko) * 1997-12-26 2000-06-15 윤종용 파일럿 톤 호핑을 이용한 피드 포워드 선형 전력 증폭 방법
US6147555A (en) 1998-10-19 2000-11-14 Powerwave Technologies, Inc. Amplification system having mask detection
US6326840B1 (en) * 1999-08-27 2001-12-04 Kokusai Electric Co., Ltd. Feed-forward distortion compensation amplifier and method of amplifying signal with feed-forward distortion compensation
US6684064B2 (en) * 2000-03-29 2004-01-27 Interdigital Technology Corp. Dynamic bias for RF power amplifiers
FR2810310B1 (fr) * 2000-06-15 2002-07-26 Htci Dispositif de purification d'effluent
US6940346B2 (en) * 2000-12-04 2005-09-06 Matsushita Electric Industrial Co., Ltd. Feedforward amplifier, communication apparatus, feedforward amplification method, program and medium
WO2002052717A2 (en) * 2000-12-22 2002-07-04 Paradigm Wireless Communications Llc Feed-forward amplifier loop control utilizing if signal processing
US6897723B2 (en) 2000-12-22 2005-05-24 Paradigm Wireless Communications, Llc Feed-forward amplifier loop control utilizing if signal processing
WO2003069773A2 (en) 2002-02-14 2003-08-21 Powerwave Technologies, Inc. Deed forward rf power amplifier with high efficiency main amplifier and highly linear error amplifier
US6700441B1 (en) * 2002-09-17 2004-03-02 Motorola, Inc. Method and apparatus for reduction of distortion in a feed forward amplifier
US7170342B2 (en) * 2002-12-10 2007-01-30 Ntt Docomo, Inc. Linear power amplification method and linear power amplifier
US7301397B2 (en) * 2002-12-18 2007-11-27 Powerwave Technologies, Inc. Enhanced efficiency feed forward power amplifier with delay mismatched error cancellation loop
AU2003293522A1 (en) * 2002-12-18 2004-07-29 Powerwave Technologies, Inc. Feed forward amplifier system using penalties and floors for optimal control
KR20050089159A (ko) 2002-12-18 2005-09-07 파워웨이브 테크놀로지스, 인크. 제어를 위해 페널티 및 플로어를 사용하는 지연 미스매치된피드 포워드 증폭기 시스템
US7295819B2 (en) * 2003-03-11 2007-11-13 Andrew Corporation Signal sample acquisition techniques
US7123086B2 (en) 2003-05-07 2006-10-17 Powerwave Technologies, Inc. Feed forward amplifier employing positive feedback pilot generation
US7187232B2 (en) * 2003-05-07 2007-03-06 Powerwave Technologies, Inc. Feed forward amplifier employing positive feedback pilot generation with automatic level control
US6859101B1 (en) * 2003-09-05 2005-02-22 Andrew Corporation Frequency-selective phase/delay control for an amplifier
FI20040139A0 (fi) * 2004-01-30 2004-01-30 Nokia Corp Elektroninen piiri
US7170344B2 (en) * 2004-02-03 2007-01-30 Ntt Docomo, Inc. Multi-band predistorter using power series representation
US7157967B2 (en) 2004-03-11 2007-01-02 Powerwave Technologies Inc. System and method for control of loop alignment in adaptive feed forward amplifiers
US7308234B2 (en) * 2005-01-19 2007-12-11 Northrop Grumman Corporation Feedforward spur cancellation approach using low IP amplifier

Also Published As

Publication number Publication date
CN101199112A (zh) 2008-06-11
EP1867120B1 (de) 2012-03-14
US7756493B2 (en) 2010-07-13
US20060222104A1 (en) 2006-10-05
CN101199112B (zh) 2010-11-10
EP1867120A4 (de) 2009-12-23
WO2006110360A3 (en) 2007-12-13
EP1867120A2 (de) 2007-12-19
WO2006110360A2 (en) 2006-10-19

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