NO20003258D0 - FremgangsmÕte og anordning for korrigering av fasefeil i en effektforsterkers lineariseringssløyfe - Google Patents

FremgangsmÕte og anordning for korrigering av fasefeil i en effektforsterkers lineariseringssløyfe

Info

Publication number
NO20003258D0
NO20003258D0 NO20003258A NO20003258A NO20003258D0 NO 20003258 D0 NO20003258 D0 NO 20003258D0 NO 20003258 A NO20003258 A NO 20003258A NO 20003258 A NO20003258 A NO 20003258A NO 20003258 D0 NO20003258 D0 NO 20003258D0
Authority
NO
Norway
Prior art keywords
signals
phase
modulator
phase error
linearization loop
Prior art date
Application number
NO20003258A
Other languages
English (en)
Norwegian (no)
Other versions
NO20003258L (no
Inventor
Niklas Lagerblom
Kristian Thomasson
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of NO20003258D0 publication Critical patent/NO20003258D0/no
Publication of NO20003258L publication Critical patent/NO20003258L/no

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
    • H03F1/3241—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
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing
    • H03D7/165—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature
    • H03D7/166—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages
    • H03D7/168—Multiple-frequency-changing at least two frequency changers being located in different paths, e.g. in two paths with carriers in quadrature using two or more quadrature frequency translation stages using a feedback loop containing mixers or demodulators
NO20003258A 1998-10-23 2000-06-22 FremgangsmÕte og anordning for korrigering av fasefeil i en effektforsterkers lineariseringssløyfe NO20003258L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI982298A FI105612B (fi) 1998-10-23 1998-10-23 Menetelmä ja kytkentä vaihevirheen korjaamiseksi tehovahvistimen linearisointisilmukassa
PCT/FI1999/000883 WO2000025421A1 (en) 1998-10-23 1999-10-22 Method and arrangement for correcting phase error in linearization loop of power amplifier

Publications (2)

Publication Number Publication Date
NO20003258D0 true NO20003258D0 (no) 2000-06-22
NO20003258L NO20003258L (no) 2000-06-22

Family

ID=8552770

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20003258A NO20003258L (no) 1998-10-23 2000-06-22 FremgangsmÕte og anordning for korrigering av fasefeil i en effektforsterkers lineariseringssløyfe

Country Status (11)

Country Link
US (1) US6639950B1 (fi)
EP (1) EP1040571B1 (fi)
CN (1) CN1121092C (fi)
AT (1) ATE274256T1 (fi)
AU (1) AU1048400A (fi)
CA (1) CA2311821A1 (fi)
DE (1) DE69919504T2 (fi)
FI (1) FI105612B (fi)
NO (1) NO20003258L (fi)
NZ (1) NZ505308A (fi)
WO (1) WO2000025421A1 (fi)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19946669C2 (de) * 1999-09-29 2001-09-27 Rohde & Schwarz Verfahren zum Einstellen eines Phasenwinkels eines Phasenschiebers einer Sendeeinrichtung
DE19946668C2 (de) 1999-09-29 2001-09-27 Rohde & Schwarz Sendeeinrichtung und Verfahren zu deren schneller Umschaltung
US8048806B2 (en) 2000-03-17 2011-11-01 Applied Materials, Inc. Methods to avoid unstable plasma states during a process transition
US8617351B2 (en) 2002-07-09 2013-12-31 Applied Materials, Inc. Plasma reactor with minimal D.C. coils for cusp, solenoid and mirror fields for plasma uniformity and device damage reduction
KR100382487B1 (ko) * 2000-11-02 2003-05-09 엘지전자 주식회사 이득 및 위상 왜곡 보상 기능을 가지는 이동통신 송신시스템
JP2002223130A (ja) * 2001-01-25 2002-08-09 Fujitsu Ltd 送信装置および送信方法
US6947712B2 (en) * 2001-12-12 2005-09-20 Agere Systems Inc. Group delay precompensator for broadband radio frequency transmitter and method of operating the same
DE10163466A1 (de) * 2001-12-21 2003-07-10 Infineon Technologies Ag Sendeanordnung für zeitkontinuierliche Datenübertragung
US8811917B2 (en) 2002-05-01 2014-08-19 Dali Systems Co. Ltd. Digital hybrid mode power amplifier system
US8380143B2 (en) 2002-05-01 2013-02-19 Dali Systems Co. Ltd Power amplifier time-delay invariant predistortion methods and apparatus
US6985704B2 (en) 2002-05-01 2006-01-10 Dali Yang System and method for digital memorized predistortion for wireless communication
TWI283899B (en) * 2002-07-09 2007-07-11 Applied Materials Inc Capacitively coupled plasma reactor with magnetic plasma control
GB2395843B (en) * 2002-11-29 2006-04-26 Motorola Inc Wireless subscriber communication unit and antenna arrangement therefor
GB2400250B (en) * 2003-03-31 2005-05-25 Motorola Inc Wireless communication unit and linearised transmitter circuit therefor
GB2408860B (en) * 2003-12-04 2006-12-20 Motorola Inc Wireless communication unit, linearised transmitter circuit and method of linearising therein
US7570201B1 (en) * 2004-11-05 2009-08-04 Northrop Grumman Corporation Radar exciter including phase compensation of the waveform generator
JP4595509B2 (ja) * 2004-11-26 2010-12-08 ソニー株式会社 無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
US20060205375A1 (en) * 2005-03-11 2006-09-14 Nokia Corporation Measurement circuit and method for measuring the level of an RF signal, and a transmitter including a measurement circuit
US20070135064A1 (en) * 2005-12-09 2007-06-14 Ruelke Charles R Method and apparatus for reducing phase imbalance in radio frequency signals
WO2008078195A2 (en) 2006-12-26 2008-07-03 Dali Systems Co., Ltd. Method and system for baseband predistortion linearization in multi-channel wideband communication systems
US8175553B2 (en) * 2007-01-17 2012-05-08 Motorola Solutions, Inc. Wireless communication unit, linearised transmitter circuit and method of linearising therein
GB2445776B (en) * 2007-01-17 2009-08-19 Motorola Inc Wireless communication unit, linearised transmitter circuit and method of linearising therein
US7689180B2 (en) * 2007-05-15 2010-03-30 Sige Semiconductor Inc. Method and apparatus for a cartesian error feedback circuit to correct distortion within a power amplifier
EP2272171A1 (en) 2008-04-07 2011-01-12 Nxp B.V. Cancellation of oscillator remodulation
US7876261B1 (en) * 2008-10-28 2011-01-25 Lockheed Martin Corporation Reflected wave clock synchronization
GB2466072B (en) * 2008-12-12 2011-03-23 Motorola Inc Adaptive cartesian loop transmitter for broadband and optimal loop stability adjustment
JP5251748B2 (ja) * 2009-06-17 2013-07-31 富士通株式会社 位相補正装置、位相補正方法
JP5251749B2 (ja) * 2009-06-17 2013-07-31 富士通株式会社 位相補正装置、位相補正方法
JP5349679B2 (ja) * 2010-03-04 2013-11-20 三菱電機株式会社 送信モジュールおよびフェーズドアレイアンテナ装置
KR102136940B1 (ko) 2010-09-14 2020-07-23 달리 시스템즈 씨오. 엘티디. 원격으로 재구성가능한 분산 안테나 시스템 및 방법
GB2510917A (en) * 2013-02-19 2014-08-20 Roke Manor Research A suppression circuit for suppressing unwanted transmitter output
US9338041B1 (en) 2015-07-24 2016-05-10 Tm Ip Holdings, Llc Extracting carrier signals from modulated signals
US9338042B1 (en) * 2015-07-27 2016-05-10 Tm Ip Holdings, Llc Separating and extracting modulated signals
US10341161B2 (en) 2017-07-10 2019-07-02 Tm Ip Holdings, Llc Multi-dimensional signal encoding
US10594539B2 (en) 2018-06-05 2020-03-17 Tm Ip Holdings, Llc Transpositional modulation and demodulation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066923A (en) * 1990-10-31 1991-11-19 Motorola, Inc. Linear transmitter training method and apparatus
US5175879A (en) 1991-04-25 1992-12-29 Motorola, Inc. Linear amplifier with feedback path and phase error compensation
EP0598585B1 (en) * 1992-11-16 1999-03-31 Linear Modulation Technology Ltd Automatic calibration of the quadrature balance within a cartesian amplifier
US5559468A (en) * 1993-06-28 1996-09-24 Motorola, Inc. Feedback loop closure in a linear transmitter
GB2293935B (en) 1994-10-03 1999-07-14 Linear Modulation Tech Automatic calibration of carrier suppression and loop phase in a cartesian amplifier
US5675286A (en) * 1996-02-12 1997-10-07 Motorola, Inc. Method and apparatus for an improved linear transmitter
WO1998000908A1 (en) 1996-06-28 1998-01-08 Philips Electronics N.V. Circuit arrangement comprising a cartesian amplifier
US5920808A (en) * 1996-12-12 1999-07-06 Glenayre Electronics, Inc. Method and apparatus for reducing key-up distortion by pre-heating transistors
US5930689A (en) * 1997-10-24 1999-07-27 Motorola, Inc. Apparatus and method for producing a plurality of output signals with fixed phase relationships therebetween
US5959500A (en) * 1998-01-26 1999-09-28 Glenayre Electronics, Inc. Model-based adaptive feedforward amplifier linearizer

Also Published As

Publication number Publication date
EP1040571A1 (en) 2000-10-04
AU1048400A (en) 2000-05-15
CN1287712A (zh) 2001-03-14
CA2311821A1 (en) 2000-05-04
US6639950B1 (en) 2003-10-28
ATE274256T1 (de) 2004-09-15
WO2000025421A1 (en) 2000-05-04
CN1121092C (zh) 2003-09-10
NZ505308A (en) 2002-07-26
NO20003258L (no) 2000-06-22
DE69919504T2 (de) 2005-09-08
DE69919504D1 (de) 2004-09-23
EP1040571B1 (en) 2004-08-18
FI105612B (fi) 2000-09-15
FI982298A (fi) 2000-04-24
FI982298A0 (fi) 1998-10-23

Similar Documents

Publication Publication Date Title
NO20003258D0 (no) FremgangsmÕte og anordning for korrigering av fasefeil i en effektforsterkers lineariseringssløyfe
US8175551B2 (en) Distortion compensation device for use in high-frequency power amplifier
CN101019395A (zh) 失真补偿装置
ATE319221T1 (de) Verbesserte vorverzerrungskompensation für einen leistungsverstärker
US8223883B2 (en) Transmission circuit, method for determining delay time used in the transmission circuit, and communication apparatus using the transmission circuit
EP1111868A3 (en) Phase and amplitude detection, particularly for use in the linearisation of power amplifiers
AU2002229135A1 (en) Apparatus and methods for monitoring and controlling power amplifier linearity using detected fundamental and harmonic components
ATE254759T1 (de) Optischer phasendetektor
GB2320381A (en) Reducing distortion in a power amplifier by monitoring the output and inputs and training
KR20010059649A (ko) 전력증폭기의 전치왜곡 선형화기
MY112208A (en) Radio frequency amplifier having improved ctb and cross modulation characteristics
KR980700726A (ko) 무선 주파수 통신 시스템용 증폭기 회로 및 증폭기 제어 방법(An Amplifier Circuit and a Method of Controlling an Amplifier for Use in a Radio Frequency Communication System)
CN103891135B (zh) 包络跟踪放大级中的时间和振幅调整
JP2008211449A (ja) Ｅｅｒ増幅装置、ｅｅｒ増幅装置における同期制御方法、および無線通信装置
ATE216152T1 (de) Messverfahren und messeinrichtung zum messen der verzerrung eines hochfrequenz- leistungsverstärkers und entzerrungsverfahren und entzerrungseinrichtung
US20020095628A1 (en) Apparatus and method for reducing skew of a high speed signal
FI973918A (fi) Menetelmä ja kytkentä viiveen kompensoimiseksi tehovahvistimen linearisointisilmukassa
WO2001084707A3 (en) Adaptive phase and amplitude linearization method and apparatus
Sabah et al. Design and calibration of IQ-Mixers
US4673887A (en) Digital driver for fixed power amplifier
WO2001024467A3 (de) Verfahren zum einstellen eines phasenwinkels eines phasenschiebers einer sendeeinrichtung
Cowley The application of an analog computer to the measurement of process dynamics
JP2004015660A (ja) 歪補償器
US20050036650A1 (en) Control scheme for signal processing arrangement
CA1233203A (en) Wattmeter

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application