DE602006000847D1 - Vorwärtsgekoppelter Verstärker für mehrere Frequenzbänder - Google Patents

Vorwärtsgekoppelter Verstärker für mehrere Frequenzbänder

Info

Publication number
DE602006000847D1
DE602006000847D1 DE602006000847T DE602006000847T DE602006000847D1 DE 602006000847 D1 DE602006000847 D1 DE 602006000847D1 DE 602006000847 T DE602006000847 T DE 602006000847T DE 602006000847 T DE602006000847 T DE 602006000847T DE 602006000847 D1 DE602006000847 D1 DE 602006000847D1
Authority
DE
Germany
Prior art keywords
frequency bands
multiple frequency
feedforward amplifier
feedforward
amplifier
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.)
Active
Application number
DE602006000847T
Other languages
English (en)
Other versions
DE602006000847T2 (de
Inventor
Yasunori Suzuki
Shoichi Narahashi
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.)
NTT Docomo Inc
Original Assignee
NTT Docomo 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 NTT Docomo Inc filed Critical NTT Docomo Inc
Publication of DE602006000847D1 publication Critical patent/DE602006000847D1/de
Application granted granted Critical
Publication of DE602006000847T2 publication Critical patent/DE602006000847T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE602006000847T 2005-06-03 2006-06-02 Vorwärtsgekoppelter Verstärker für mehrere Frequenzbänder Active DE602006000847T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005164786 2005-06-03
JP2005164786 2005-06-03

Publications (2)

Publication Number Publication Date
DE602006000847D1 true DE602006000847D1 (de) 2008-05-15
DE602006000847T2 DE602006000847T2 (de) 2009-05-14

Family

ID=37115359

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006000847T Active DE602006000847T2 (de) 2005-06-03 2006-06-02 Vorwärtsgekoppelter Verstärker für mehrere Frequenzbänder

Country Status (5)

Country Link
US (1) US7336128B2 (de)
EP (1) EP1729409B1 (de)
KR (1) KR100760864B1 (de)
CN (1) CN100576767C (de)
DE (1) DE602006000847T2 (de)

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JP5052366B2 (ja) * 2008-02-20 2012-10-17 株式会社エヌ・ティ・ティ・ドコモ 高効率フィードフォワード増幅器の制御方法
US8965454B2 (en) * 2009-03-04 2015-02-24 Andrew Llc Amplifier system for cell sites and other suitable applications
US8446997B2 (en) * 2009-07-02 2013-05-21 Agilent Technologies, Inc. Apparatus and method for reducing third-order intermodulation distortion
WO2014093916A1 (en) * 2012-12-13 2014-06-19 Kumu Networks Feed forward signal cancellation
WO2014121290A1 (en) * 2013-02-04 2014-08-07 Kumu Networks Signal cancellation using feedforward and feedback paths
EP3031141B8 (de) 2013-08-09 2018-05-16 Kumu Networks, Inc. Unterdrückung nichtlinearer digitaler selbstinterferenzen
US9698860B2 (en) 2013-08-09 2017-07-04 Kumu Networks, Inc. Systems and methods for self-interference canceller tuning
US9036749B2 (en) 2013-08-09 2015-05-19 Kumu Networks, Inc. Systems and methods for frequency independent analog self-interference cancellation
US9054795B2 (en) 2013-08-14 2015-06-09 Kumu Networks, Inc. Systems and methods for phase noise mitigation
US10673519B2 (en) 2013-08-29 2020-06-02 Kuma Networks, Inc. Optically enhanced self-interference cancellation
US10177836B2 (en) 2013-08-29 2019-01-08 Kumu Networks, Inc. Radio frequency self-interference-cancelled full-duplex relays
US9520983B2 (en) 2013-09-11 2016-12-13 Kumu Networks, Inc. Systems for delay-matched analog self-interference cancellation
US10230422B2 (en) 2013-12-12 2019-03-12 Kumu Networks, Inc. Systems and methods for modified frequency-isolation self-interference cancellation
US9774405B2 (en) 2013-12-12 2017-09-26 Kumu Networks, Inc. Systems and methods for frequency-isolated self-interference cancellation
US9712312B2 (en) 2014-03-26 2017-07-18 Kumu Networks, Inc. Systems and methods for near band interference cancellation
US9521023B2 (en) 2014-10-17 2016-12-13 Kumu Networks, Inc. Systems for analog phase shifting
US9712313B2 (en) 2014-11-03 2017-07-18 Kumu Networks, Inc. Systems for multi-peak-filter-based analog self-interference cancellation
US9673854B2 (en) 2015-01-29 2017-06-06 Kumu Networks, Inc. Method for pilot signal based self-inteference cancellation tuning
US9641138B2 (en) 2015-04-09 2017-05-02 Analog Devices, Inc. Multipath feedforward band pass amplifier
CN105227145B (zh) * 2015-09-06 2018-08-21 上海华虹宏力半导体制造有限公司 射频非线性失真检测电路
US9634823B1 (en) 2015-10-13 2017-04-25 Kumu Networks, Inc. Systems for integrated self-interference cancellation
US10666305B2 (en) 2015-12-16 2020-05-26 Kumu Networks, Inc. Systems and methods for linearized-mixer out-of-band interference mitigation
US9742593B2 (en) 2015-12-16 2017-08-22 Kumu Networks, Inc. Systems and methods for adaptively-tuned digital self-interference cancellation
WO2017106766A1 (en) 2015-12-16 2017-06-22 Kumu Networks, Inc. Time delay filters
US9800275B2 (en) 2015-12-16 2017-10-24 Kumu Networks, Inc. Systems and methods for out-of band-interference mitigation
US9979374B2 (en) 2016-04-25 2018-05-22 Kumu Networks, Inc. Integrated delay modules
US10454444B2 (en) 2016-04-25 2019-10-22 Kumu Networks, Inc. Integrated delay modules
WO2018183333A1 (en) 2017-03-27 2018-10-04 Kumu Networks, Inc Systems and methods for tunable out-of-band interference mitigation
US10103774B1 (en) 2017-03-27 2018-10-16 Kumu Networks, Inc. Systems and methods for intelligently-tuned digital self-interference cancellation
WO2018183352A1 (en) 2017-03-27 2018-10-04 Kumu Networks, Inc. Enhanced linearity mixer
US10200076B1 (en) 2017-08-01 2019-02-05 Kumu Networks, Inc. Analog self-interference cancellation systems for CMTS
KR102339808B1 (ko) 2018-02-27 2021-12-16 쿠무 네트웍스, 아이엔씨. 구성가능한 하이브리드 자기-간섭 소거를 위한 시스템 및 방법
US10868661B2 (en) 2019-03-14 2020-12-15 Kumu Networks, Inc. Systems and methods for efficiently-transformed digital self-interference cancellation
CN110233633B (zh) * 2019-06-18 2020-02-28 郑州工程技术学院 一种基于物联网的计算机数据传输系统
CN111294303A (zh) * 2020-03-16 2020-06-16 无锡原旭机电科技有限公司 一种基于物联网的桥梁安全管理系统

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JPH0777330B2 (ja) 1988-02-03 1995-08-16 日本電信電話株式会社 フィードフォワード増幅器の自動調整回路
JPH05191178A (ja) * 1992-01-16 1993-07-30 Japan Radio Co Ltd 電力増幅装置
US5886573A (en) * 1998-03-06 1999-03-23 Fujant, Inc. Amplification using amplitude reconstruction of amplitude and/or angle modulated carrier
US6066984A (en) * 1998-03-16 2000-05-23 Hitachi Denshi Kabushiki Kaisha Amplifier and amplifying method for amplifying a plurality of signals having different bands simultaneously
JP3662138B2 (ja) 1998-03-16 2005-06-22 株式会社日立国際電気 増幅器
EP1014564B1 (de) * 1998-12-14 2008-10-22 Ntt Mobile Communications Network Inc. Vorwärtskopplungsverstärker
JP3371837B2 (ja) 1999-01-28 2003-01-27 日本電気株式会社 フィードフォワード増幅器及びその増幅方法
EP1030441A3 (de) * 1999-02-16 2004-03-17 Matsushita Electric Industrial Co., Ltd. Vorwärtskopplungsverstärker
KR100362925B1 (ko) * 1999-03-31 2002-11-29 가부시키가이샤 엔.티.티.도코모 피드포워드 증폭기
US6515544B1 (en) * 1999-09-17 2003-02-04 Ntt Docomo, Inc. Multi-terminal power combining feed-forward amplifier
JP2001284975A (ja) 2000-03-29 2001-10-12 Hitachi Kokusai Electric Inc フィードフォワード増幅器
JP3877937B2 (ja) * 2000-05-18 2007-02-07 株式会社エヌ・ティ・ティ・ドコモ フィードフォワード増幅器
US6590449B2 (en) * 2000-05-30 2003-07-08 Matsushita Electric Industrial Co., Ltd. Predistortion circuit, low-distortion power amplifier, and control methods therefor
JP3720276B2 (ja) * 2001-04-20 2005-11-24 三菱電機株式会社 フィードフォワード増幅器
CN1215727C (zh) * 2001-11-06 2005-08-17 株式会社Ntt都科摩 具有双重环路的前馈放大器
AU2003225815A1 (en) * 2002-03-19 2003-10-08 Powerwave Technologies, Inc. System and method for eliminating signal zero crossings in single and multiple channel communication systems
EP1560328B1 (de) * 2004-01-28 2010-09-15 NTT DoCoMo, Inc. Mehrfachband-Vorwärtskopplungsverstärker und Methode zur Einstellung desselben
US7183847B2 (en) * 2004-01-28 2007-02-27 Ntt Docomo, Inc. Multi-band look-up table type predistorter

Also Published As

Publication number Publication date
US7336128B2 (en) 2008-02-26
EP1729409B1 (de) 2008-04-02
KR20060126380A (ko) 2006-12-07
US20060273853A1 (en) 2006-12-07
CN100576767C (zh) 2009-12-30
CN1874180A (zh) 2006-12-06
DE602006000847T2 (de) 2009-05-14
KR100760864B1 (ko) 2007-09-21
EP1729409A1 (de) 2006-12-06

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