AR076780A1 - Un transmisor mejorado - Google Patents

Un transmisor mejorado

Info

Publication number
AR076780A1
AR076780A1 ARP100101726A ARP100101726A AR076780A1 AR 076780 A1 AR076780 A1 AR 076780A1 AR P100101726 A ARP100101726 A AR P100101726A AR P100101726 A ARP100101726 A AR P100101726A AR 076780 A1 AR076780 A1 AR 076780A1
Authority
AR
Argentina
Prior art keywords
transmitter
output
signal
amplifier
pulse encoder
Prior art date
Application number
ARP100101726A
Other languages
English (en)
Inventor
Ulf Gustavsson
Johan Thorebaeck
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR076780A1 publication Critical patent/AR076780A1/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B1/0475—Circuits with means for limiting noise, interference or 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0244—Stepped control
    • 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
    • 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
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/002—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general without controlling loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4902—Pulse width modulation; Pulse position modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/361—Modulation using a single or unspecified number of carriers, e.g. with separate stages of phase and amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
    • H03C2200/0037—Functional aspects of modulators
    • H03C2200/0058—Quadrature arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/02—Transmitters
    • H04B1/04—Circuits
    • H04B2001/0408—Circuits with power amplifiers
    • H04B2001/0425—Circuits with power amplifiers with linearisation using predistortion

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)

Abstract

La solicitud revela un transmisor (300, 400, 600) que comprende un codificador de impulsos (305) para generar impulsos desde la amplitud de una senal de entrada al transmisor, un generador de senales de compensacion (315) para cancelar el ruido de cuantizacion causado por el codificador de impulsos (305), un mezclador o modulador de I/Q (307) para mezclar una salida del codificador de impulsos con la fase de una senal de entrada al transmisor y un amplificador (320) para generar una senal de salida desde el transmisor. En el transmisor (300, 400, 600), una senal de control (CA) para controlar una funcion del amplificador (320) comprende una senal de salida desde el generador de senales de compensacion (315); y una senal de entrada al amplificador comprende una salida desde dicho mezclador (307) que ha sido modulado (340) a una frecuencia deseada.
ARP100101726A 2009-05-18 2010-05-18 Un transmisor mejorado AR076780A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2009/050552 WO2010134857A1 (en) 2009-05-18 2009-05-18 Transmitter with quantization noise compensation

Publications (1)

Publication Number Publication Date
AR076780A1 true AR076780A1 (es) 2011-07-06

Family

ID=43126367

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP100101726A AR076780A1 (es) 2009-05-18 2010-05-18 Un transmisor mejorado

Country Status (6)

Country Link
US (3) US8472557B2 (es)
EP (1) EP2433360B1 (es)
CN (1) CN102428644B (es)
AR (1) AR076780A1 (es)
WO (1) WO2010134857A1 (es)
ZA (1) ZA201106815B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010134857A1 (en) 2009-05-18 2010-11-25 Telefonaktiebolaget L M Ericsson (Publ) Transmitter with quantization noise compensation
US9923750B2 (en) * 2016-06-16 2018-03-20 Infineon Technologies Ag High speed pulse modulation system
CN114844475A (zh) * 2022-05-05 2022-08-02 合肥工业大学 基于功能重构器件的可编程多功能微波系统及时序控制方法

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4972436A (en) * 1988-10-14 1990-11-20 Hayes Microcomputer Products, Inc. High performance sigma delta based analog modem front end
US6100756A (en) * 1998-09-21 2000-08-08 Motorola, Inc. Method and apparatus for high efficiency power amplification
US6587514B1 (en) * 1999-07-13 2003-07-01 Pmc-Sierra, Inc. Digital predistortion methods for wideband amplifiers
US6987417B2 (en) * 2003-06-24 2006-01-17 Northrop Grumman Corpoation Polar and linear amplifier system
US7026868B2 (en) * 2003-11-20 2006-04-11 Northrop Grumman Corporation Variable supply amplifier system
US7860189B2 (en) * 2004-08-19 2010-12-28 Intrinsix Corporation Hybrid heterodyne transmitters and receivers
JP4802765B2 (ja) * 2005-03-18 2011-10-26 ヤマハ株式会社 Ｄ級増幅器
US20060255997A1 (en) 2005-04-08 2006-11-16 M/A-Com, Inc. And M/A-Com Eurotec Bv Differential analog filter
JP5003134B2 (ja) * 2006-01-10 2012-08-15 日本電気株式会社 増幅装置
CN101305515B (zh) * 2006-01-10 2012-07-04 日本电气株式会社 放大设备
KR100710509B1 (ko) * 2006-04-11 2007-04-25 남상욱 펄스면적변조를 이용한 고효율 선형 전력증폭기 시스템
US7881399B2 (en) * 2006-09-19 2011-02-01 Panasonic Corporation Transmission circuit and communication device
WO2010134857A1 (en) 2009-05-18 2010-11-25 Telefonaktiebolaget L M Ericsson (Publ) Transmitter with quantization noise compensation

Also Published As

Publication number Publication date
CN102428644B (zh) 2014-11-05
CN102428644A (zh) 2012-04-25
US20130308725A1 (en) 2013-11-21
US9843345B2 (en) 2017-12-12
EP2433360A1 (en) 2012-03-28
US20160164554A1 (en) 2016-06-09
ZA201106815B (en) 2012-11-28
EP2433360A4 (en) 2017-03-08
EP2433360B1 (en) 2018-04-11
US9264078B2 (en) 2016-02-16
US20120063543A1 (en) 2012-03-15
US8472557B2 (en) 2013-06-25
WO2010134857A1 (en) 2010-11-25

Similar Documents

Publication Publication Date Title
JP2013507005A5 (es)
WO2010132246A3 (en) System and method for efficiently generating an oscillating signal
WO2008090721A1 (ja) 電力増幅器
JP2011207069A5 (ja) 手術機器、容量性負荷の駆動方法および容量性負荷駆動回路
AR076780A1 (es) Un transmisor mejorado
WO2012016722A3 (en) Apparatus for generating a drive dependent sound and engine driven vehicle
AU2005331643A8 (en) Sounder
WO2012080742A3 (en) Dc offset compensation
WO2014031778A3 (en) Acoustic source for generating an acoustic beam
PH12016502137A1 (en) High band excitation signal generation
WO2007062842A3 (de) Füllstandradar mit variabler sendeleistung
TW200746616A (en) Systems, methods and devices for dual closed loop modulation controller for nonlinear RF amplifier
WO2011022333A3 (en) Pulsed fiber-mopa with widely-variable pulse-duration
EP2548269A4 (en) Amplitude and phase modulation of a laser by modulation of an output coupler
ATE544238T1 (de) Kristalloszillator-taktschaltung
GB2491507A (en) Digital frequency locked loop
EP3293881A3 (en) Active output driver supply compensation for noise reduction
WO2008078565A1 (ja) 電力増幅器
WO2013070658A3 (en) Modulation scheme for driving a piezo element
ATE534187T1 (de) Amplitudenmodulationssteuerung für polaren sender mit grober und feiner leistungssteuerung
TW200951450A (en) Oscillating system and assistant measuring circuit for oscillator
IL240316B (en) Method and system for parametric amplification
WO2016026484A3 (de) Anordnung und verfahren zum modulieren von laserpulsen
MX2009006967A (es) Caja de transporte universal.
WO2012050363A3 (ko) 레이저 시스템에서 버스트 발진 방법 및 이를 위한 장치

Legal Events

Date Code Title Description
FG Grant, registration