DE19781955T1 - Verfahren und Vorrichtung zum Filtern von Intermodulationsprodukten in einem Funkkommunikationssystem - Google Patents

Verfahren und Vorrichtung zum Filtern von Intermodulationsprodukten in einem Funkkommunikationssystem

Info

Publication number
DE19781955T1
DE19781955T1 DE19781955T DE19781955T DE19781955T1 DE 19781955 T1 DE19781955 T1 DE 19781955T1 DE 19781955 T DE19781955 T DE 19781955T DE 19781955 T DE19781955 T DE 19781955T DE 19781955 T1 DE19781955 T1 DE 19781955T1
Authority
DE
Germany
Prior art keywords
communication system
radio communication
intermodulation products
filtering
filtering intermodulation
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.)
Pending
Application number
DE19781955T
Other languages
English (en)
Other versions
DE19781955B4 (de
Inventor
Philippe Charas
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE19781955T1 publication Critical patent/DE19781955T1/de
Pending 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
    • 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
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • 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
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Amplifiers (AREA)
  • Mobile Radio Communication Systems (AREA)
DE19781955T 1996-08-27 1997-08-26 Verfahren und Vorrichtung zum Filtern von Intermodulationsprodukten in einem Funkkommunikationssystem Pending DE19781955T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/697,279 US5862459A (en) 1996-08-27 1996-08-27 Method of and apparatus for filtering intermodulation products in a radiocommunication system
PCT/SE1997/001410 WO1998009372A1 (en) 1996-08-27 1997-08-26 Method of and apparatus for filtering intermodulation products in a radiocommunication system

Publications (1)

Publication Number Publication Date
DE19781955T1 true DE19781955T1 (de) 1999-09-09

Family

ID=24800521

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19781955T Pending DE19781955T1 (de) 1996-08-27 1997-08-26 Verfahren und Vorrichtung zum Filtern von Intermodulationsprodukten in einem Funkkommunikationssystem
DE19781955A Expired - Lifetime DE19781955B4 (de) 1996-08-27 1997-08-26 Feed-Forward-Mehrträger-Leistungsverstärker und Verfahreen zum Steuern der Amplitude und der Phase von Intermodulationsprodukten in einem Mehrträger-Leistungsverstärker

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE19781955A Expired - Lifetime DE19781955B4 (de) 1996-08-27 1997-08-26 Feed-Forward-Mehrträger-Leistungsverstärker und Verfahreen zum Steuern der Amplitude und der Phase von Intermodulationsprodukten in einem Mehrträger-Leistungsverstärker

Country Status (9)

Country Link
US (1) US5862459A (de)
JP (1) JP4027427B2 (de)
KR (1) KR100459617B1 (de)
CN (1) CN1113455C (de)
AU (1) AU3877197A (de)
DE (2) DE19781955T1 (de)
GB (1) GB2332316B (de)
TW (1) TW349298B (de)
WO (1) WO1998009372A1 (de)

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SE513156C2 (sv) * 1998-07-10 2000-07-17 Ericsson Telefon Ab L M Anordning och förfarande relaterande till radiokommunikation
SE512437C2 (sv) * 1998-07-27 2000-03-20 Ericsson Telefon Ab L M Förfarande och anordning för reducering av intermodulationsdistortion vid radiokommunikation
US6553211B1 (en) * 1998-08-20 2003-04-22 Lucent Technologies Inc. Method and apparatus for adjusting pilot signal relative to input signal
US6330289B1 (en) * 1998-10-16 2001-12-11 Nortel Networks Limited System for improving base station amplifier performance
US6704557B1 (en) * 1999-04-22 2004-03-09 Lucent Technologies Inc. System and method for protecting a receiver from jamming interference
US6621469B2 (en) 1999-04-26 2003-09-16 Andrew Corporation Transmit/receive distributed antenna systems
US6812905B2 (en) 1999-04-26 2004-11-02 Andrew Corporation Integrated active antenna for multi-carrier applications
US6362787B1 (en) 1999-04-26 2002-03-26 Andrew Corporation Lightning protection for an active antenna using patch/microstrip elements
US6701137B1 (en) 1999-04-26 2004-03-02 Andrew Corporation Antenna system architecture
US6583763B2 (en) 1999-04-26 2003-06-24 Andrew Corporation Antenna structure and installation
US6208207B1 (en) * 1999-05-05 2001-03-27 Simon Fraser University Adaptive linearizer for RF power amplifiers
US7577398B2 (en) 2000-01-14 2009-08-18 Andrew Llc Repeaters for wireless communication systems
US6515544B1 (en) * 1999-09-17 2003-02-04 Ntt Docomo, Inc. Multi-terminal power combining feed-forward amplifier
US6448930B1 (en) 1999-10-15 2002-09-10 Andrew Corporation Indoor antenna
CA2407601A1 (en) * 2000-04-29 2001-11-08 Merck Patent Gesellschaft Mit Beschraenkter Haftung Novel human phospholipase c delta 5
EP1170860A1 (de) * 2000-06-27 2002-01-09 Nortel Matra Cellular Verbesserte Mehrträgersempfänger für einen Funktelekommunikationsnetzwerk
US6584330B1 (en) 2000-07-18 2003-06-24 Telefonaktiebolaget Lm Ericsson (Publ) Adaptive power management for a node of a cellular telecommunications network
US6934341B2 (en) * 2000-08-29 2005-08-23 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for plurality signal generation
DE10196845T1 (de) * 2000-11-01 2003-11-13 Andrew Corp Verteilte Antennensysteme
US6744312B2 (en) 2001-03-06 2004-06-01 Andrew Corporation Adaptive power amplifier system
US20020146996A1 (en) * 2001-03-06 2002-10-10 Bachman Thomas A. Scanning receiver for use in power amplifier linearization
US6829471B2 (en) 2001-03-07 2004-12-07 Andrew Corporation Digital baseband receiver in a multi-carrier power amplifier
US7015751B2 (en) 2001-06-28 2006-03-21 Simon Fraser University Decorrelated power amplifier linearizers
US6683495B2 (en) * 2001-06-28 2004-01-27 Simon Fraser University Reduced architecture for multibranch feedforward power amplifier linearizers
US6734731B2 (en) 2001-06-28 2004-05-11 Simon Fraser University Self-calibrated power amplifier linearizers
CN100420156C (zh) * 2002-03-19 2008-09-17 电力波技术公司 单信道和多信道通信系统中消除信号过零点的系统和方法
US20040192233A1 (en) * 2002-04-18 2004-09-30 Motorola, Inc. Redundant linear power amplifier system
US7623868B2 (en) 2002-09-16 2009-11-24 Andrew Llc Multi-band wireless access point comprising coextensive coverage regions
US6983174B2 (en) * 2002-09-18 2006-01-03 Andrew Corporation Distributed active transmit and/or receive antenna
US6906681B2 (en) * 2002-09-27 2005-06-14 Andrew Corporation Multicarrier distributed active antenna
US6844863B2 (en) 2002-09-27 2005-01-18 Andrew Corporation Active antenna with interleaved arrays of antenna elements
US7280848B2 (en) * 2002-09-30 2007-10-09 Andrew Corporation Active array antenna and system for beamforming
US20040203804A1 (en) * 2003-01-03 2004-10-14 Andrew Corporation Reduction of intermodualtion product interference in a network having sectorized access points
US7403573B2 (en) * 2003-01-15 2008-07-22 Andrew Corporation Uncorrelated adaptive predistorter
US7729668B2 (en) 2003-04-03 2010-06-01 Andrew Llc Independence between paths that predistort for memory and memory-less distortion in power amplifiers
US6972622B2 (en) * 2003-05-12 2005-12-06 Andrew Corporation Optimization of error loops in distributed power amplifiers
US7259630B2 (en) * 2003-07-23 2007-08-21 Andrew Corporation Elimination of peak clipping and improved efficiency for RF power amplifiers with a predistorter
US6963242B2 (en) * 2003-07-31 2005-11-08 Andrew Corporation Predistorter for phase modulated signals with low peak to average ratios
US7023273B2 (en) * 2003-10-06 2006-04-04 Andrew Corporation Architecture and implementation methods of digital predistortion circuitry
FI20040140A0 (fi) * 2004-01-30 2004-01-30 Nokia Corp Säätöpiiri
US7420508B2 (en) * 2006-02-14 2008-09-02 The Aerospace Corporation Higher-order intermodulation reduction using phase and angle smearing
KR100758309B1 (ko) * 2006-09-29 2007-09-12 한국전자통신연구원 다중 안테나를 구비한 무선통신 시스템의 ｒｆ 경로 오차보정 장치 및 그 방법
CN101656512B (zh) * 2008-08-18 2012-06-27 富士通株式会社 功率放大器非线性程度度量装置、方法和预失真补偿装置
DE102008052172B4 (de) 2008-10-17 2014-01-23 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zum Erzeugen eines Korrektursignals
DE102012110050B4 (de) * 2011-10-21 2019-03-14 Electronics And Telecommunications Research Institute Zufalls-Jitter-Strahlformungsverfahren und Sender und Empfänger, die dieses verwenden
CN103891228B (zh) * 2013-12-30 2016-12-14 华为技术有限公司 干扰抑制方法以及装置
US9356632B2 (en) * 2014-10-07 2016-05-31 Qualcomm Incorporated Intermodulation distortion canceller for use in multi-carrier transmitters
WO2018150454A1 (ja) * 2017-02-14 2018-08-23 三菱電機株式会社 フィードフォワード増幅器及びアンテナ装置
DE112019007289T5 (de) * 2019-06-06 2022-01-20 Mitsubishi Electric Corporation Signalverarbeitungseinrichtung and radareinrichtung

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US4389618A (en) * 1981-04-15 1983-06-21 The United States Of America As Represented By The Secretary Of The Navy Adaptive feed-forward system
US4560945A (en) * 1984-09-04 1985-12-24 Westinghouse Electric Corp. Adaptive feedforward cancellation technique that is effective in reducing amplifier harmonic distortion products as well as intermodulation distortion products
US4554514A (en) * 1984-12-21 1985-11-19 Rca Corporation Predistortion circuit with feedback
US4885551A (en) * 1988-10-31 1989-12-05 American Telephone And Telegraph Company At&T Bell Laboratories Feed forward linear amplifier
GB9009295D0 (en) * 1990-04-25 1990-06-20 Kenington Peter B Apparatus and method for reducing distortion in amplification
AU5354294A (en) * 1992-10-09 1994-05-09 E-Systems Incorporated Adaptive co-channel interference reduction system for cellular telephone central base stations
EP0595247B1 (de) * 1992-10-28 1998-07-15 Atr Optical And Radio Communications Research Laboratories Vorrichtung und Verfahren zur Steuerung einer Gruppenantenne mit einer Vielzahl von Antennenelementen
US5386198A (en) * 1993-01-28 1995-01-31 Telefonaktiebolaget L M Ericsson Linear amplifier control
GB2296615A (en) * 1994-12-21 1996-07-03 Univ Bristol Distortion and noise reduction in wide band feedforward amplifier/mixer
US6549242B1 (en) * 1997-04-04 2003-04-15 Harris Corporation Combining adjacent TV channels for transmission by a common antenna
KR19980085583A (ko) * 1997-05-29 1998-12-05 이형도 휴대폰용 파워증폭기의 안정화회로

Also Published As

Publication number Publication date
US5862459A (en) 1999-01-19
GB2332316B (en) 2001-04-11
CN1113455C (zh) 2003-07-02
CN1233358A (zh) 1999-10-27
KR100459617B1 (ko) 2004-12-03
KR20000035900A (ko) 2000-06-26
JP2000517134A (ja) 2000-12-19
GB2332316A (en) 1999-06-16
AU3877197A (en) 1998-03-19
TW349298B (en) 1999-01-01
GB9904271D0 (en) 1999-04-21
JP4027427B2 (ja) 2007-12-26
WO1998009372A1 (en) 1998-03-05
DE19781955B4 (de) 2011-11-24

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