ES2064407T3 - Circuito transmisor para transmitir eficientemente trafico de comunicacion a traves de señales portadoras moduladas en fase. - Google Patents

Circuito transmisor para transmitir eficientemente trafico de comunicacion a traves de señales portadoras moduladas en fase.

Info

Publication number
ES2064407T3
ES2064407T3 ES89117166T ES89117166T ES2064407T3 ES 2064407 T3 ES2064407 T3 ES 2064407T3 ES 89117166 T ES89117166 T ES 89117166T ES 89117166 T ES89117166 T ES 89117166T ES 2064407 T3 ES2064407 T3 ES 2064407T3
Authority
ES
Spain
Prior art keywords
carrier signal
class
modulated carrier
phase modulated
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.)
Expired - Lifetime
Application number
ES89117166T
Other languages
English (en)
Inventor
Gregory John Ernst
Daniel Mccreight Fraley Jr
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.)
Hughes Network Systems LLC
Original Assignee
Hughes Network Systems LLC
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 Hughes Network Systems LLC filed Critical Hughes Network Systems LLC
Application granted granted Critical
Publication of ES2064407T3 publication Critical patent/ES2064407T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating 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
    • H03F1/3223—Modifications of amplifiers to reduce non-linear distortion using feed-forward
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

TRANSMISOR PARA TRANSMITIR TRAFICO DE COMUNICACIONES DE SEÑALES PORTADORAS MODULADAS DE FASE. EL DISPOSITIVO PROVEE UNA AMPLIFICACION EFICIENTE DE UNA SEÑAL PORTADORA MODULADA DE FASE QUE USA UN TECNOLOGIA DE AMPLIFICADOR CLASE C (19). UNA FUNCION ENVOLVENTE ES APLICADA A LA SEÑAL PORTADORA POR MODULAR EL AMPLIFICADOR CLASE C (19) CON UNA SEÑAL ENVUELTA DE AMPLITUD QUE SUPRIME EL ESPECTRO. LA DISTORSION DE FASE QUE ACOMPAÑA LA MODULACION DE AMPLITUD DEL AMPLIFICADOR CLASE C ES COMPENSADA POR GENERAR UNA COMPENSACION DE FASE PARA LA SEÑAL PORTADORA. COMO CADA FUNCION ENVOLVENTE PARA SUPRIMIR EL ESPECTRO ES GENERADA, UNA CORRESPONDIENTE COMPENSACION DE FASE DEBE SER APLICADA A LA SEÑAL PORTADORA, EVITANDO LAS CONSECUENCIAS DE CAMBIAR DE FASE RESULTANDO DE AMPLITUD QUE MODULA LA SEÑAL PORTADORA EN EL AMPLIFICADOR CLASE C (19).
ES89117166T 1988-09-23 1989-09-16 Circuito transmisor para transmitir eficientemente trafico de comunicacion a traves de señales portadoras moduladas en fase. Expired - Lifetime ES2064407T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/248,446 US4972440A (en) 1988-09-23 1988-09-23 Transmitter circuit for efficiently transmitting communication traffic via phase modulated carrier signals

Publications (1)

Publication Number Publication Date
ES2064407T3 true ES2064407T3 (es) 1995-02-01

Family

ID=22939169

Family Applications (1)

Application Number Title Priority Date Filing Date
ES89117166T Expired - Lifetime ES2064407T3 (es) 1988-09-23 1989-09-16 Circuito transmisor para transmitir eficientemente trafico de comunicacion a traves de señales portadoras moduladas en fase.

Country Status (7)

Country Link
US (1) US4972440A (es)
EP (1) EP0360178B1 (es)
JP (1) JPH0693705B2 (es)
AU (1) AU608177B2 (es)
CA (1) CA1320604C (es)
DE (1) DE68919611T2 (es)
ES (1) ES2064407T3 (es)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1236905B (it) * 1989-12-21 1993-04-26 Sistema per la messa a punto dei trasmettitori nei ponti radio digitali a grande capacita'
JP2834304B2 (ja) * 1990-10-19 1998-12-09 松下電器産業株式会社 線形電力増幅回路
JP2727829B2 (ja) * 1991-10-30 1998-03-18 日本電気株式会社 直交変調回路
US5430416A (en) * 1994-02-23 1995-07-04 Motorola Power amplifier having nested amplitude modulation controller and phase modulation controller
US5789979A (en) * 1997-03-18 1998-08-04 Lockheed Martin Corporation Reduction of excessive spectral power distribution from class-C saturated amplification of a pulsed-carrier signal
US6967573B1 (en) 1997-12-24 2005-11-22 Parakan Pty Ltd. Transmitter and a method for transmitting data
AUPP111297A0 (en) * 1997-12-24 1998-01-22 Ilamon Pty Ltd A transmitter and a method for transmitting data
GB2345212B (en) * 1997-12-31 2000-11-29 Motorola Inc Device having a tracking power converter for providing a linear power amplifier
US6101224A (en) * 1998-10-07 2000-08-08 Telefonaktiebolaget Lm Ericsson Method and apparatus for generating a linearly modulated signal using polar modulation
US6194963B1 (en) * 1998-11-18 2001-02-27 Ericsson Inc. Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation
US6191653B1 (en) 1998-11-18 2001-02-20 Ericsson Inc. Circuit and method for linearizing amplitude modulation in a power amplifier
NZ338097A (en) * 1999-09-29 2001-05-25 Tait Electronics Ltd Digitally controlled envelope elimination and restoration phase lock loop radio frequency amplifier
EP1017162A3 (en) * 1998-12-30 2003-07-16 Texas Instruments Incorporated Amplifier circuit with negative feedback loop for distortion reduction
US6377784B2 (en) 1999-02-09 2002-04-23 Tropian, Inc. High-efficiency modulation RF amplifier
US6590940B1 (en) * 1999-05-17 2003-07-08 Ericsson Inc. Power modulation systems and methods that separately amplify low and high frequency portions of an amplitude waveform
US6366177B1 (en) 2000-02-02 2002-04-02 Tropian Inc. High-efficiency power modulators
GB2359681B (en) 2000-02-25 2004-03-10 Wireless Systems Int Ltd Switched amplifier
WO2001065680A2 (en) * 2000-03-02 2001-09-07 Adc Telecommunications, Inc. Architecture for intermediate frequency decoder
US6741650B1 (en) 2000-03-02 2004-05-25 Adc Telecommunications, Inc. Architecture for intermediate frequency encoder
US6975687B2 (en) * 2000-06-16 2005-12-13 Hughes Electronics Corporation Linearized offset QPSK modulation utilizing a sigma-delta based frequency modulator
GB0104535D0 (en) * 2001-02-23 2001-04-11 Univ Bristol Digital cartesian loop
US7346122B1 (en) * 2002-08-21 2008-03-18 Weixun Cao Direct modulation of a power amplifier with adaptive digital predistortion
US7126999B2 (en) * 2003-08-11 2006-10-24 Telefonaktiebolaget Lm Ericsson (Publ) Pseudo-polar modulation for radio transmitters
US7515647B2 (en) * 2003-11-28 2009-04-07 Samsung Electronics Co., Ltd Digital frequency converter
JP3961498B2 (ja) * 2004-02-27 2007-08-22 松下電器産業株式会社 高周波回路装置
DE102004047497A1 (de) * 2004-09-23 2006-04-06 Siemens Ag Leistungsverstärkereinheit, mobiles Telekommunikationsendgerät und zugehöriges Betriebsverfahren
US7706467B2 (en) * 2004-12-17 2010-04-27 Andrew Llc Transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope
CN101167326B (zh) * 2005-04-27 2010-09-29 松下电器产业株式会社 极化调制传输电路和通信设备
WO2008001269A2 (en) * 2006-06-28 2008-01-03 Nxp B.V. Phase-to- frequency conversion for polar transmitters
TWI354439B (en) * 2007-06-04 2011-12-11 Holtek Semiconductor Inc Ac signal producer and method thereof
JP2009278513A (ja) * 2008-05-16 2009-11-26 Mitsubishi Electric Corp 送信機
US8229029B2 (en) 2009-01-14 2012-07-24 Harris Corporation Transmitter with reduced spectral regrowth and associated methods
DE102010034259A1 (de) 2010-08-13 2012-02-16 Schaeffler Technologies Gmbh & Co. Kg Wälzlager
US8891681B2 (en) 2012-03-20 2014-11-18 Intel Mobile Communications GmbH Transmitters and methods
DE102012204451A1 (de) * 2012-03-20 2013-09-26 Intel Mobile Communications GmbH Sender und verfahren

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3831572A (en) * 1971-01-30 1973-08-02 UCENTIA PATENT-VERWALTUNGS-Gm. B. H Circuit arrangement for reducing the bandwidth in communication transmission systems
US3973201A (en) * 1974-08-16 1976-08-03 Ncr Corporation PSK modulator with reduced spectrum occupancy
NL7412226A (nl) * 1974-09-16 1976-03-18 Philips Nv Restzijbandtransmissiesysteem voor synchrone datasignalen.
US4291277A (en) * 1979-05-16 1981-09-22 Harris Corporation Adaptive predistortion technique for linearizing a power amplifier for digital data systems
US4462001A (en) * 1982-02-22 1984-07-24 Canadian Patents & Development Limited Baseband linearizer for wideband, high power, nonlinear amplifiers
JPS5999851A (ja) * 1982-11-29 1984-06-08 Nec Corp 信号制御回路
US4573133A (en) * 1983-04-19 1986-02-25 Rockwell International Corporation Signal processor for compensating detector non-uniformities
US4706262A (en) * 1984-03-30 1987-11-10 Nec Corporation FSK or FM burst signal generating apparatus
FR2564658B1 (fr) * 1984-05-21 1990-11-30 Centre Nat Etd Spatiales Dispositif de linearisation du gain d'un amplificateur de puissance a transistor bipolaire polarise en classe c
JPS6152050A (ja) * 1984-08-22 1986-03-14 Nec Corp 変調装置
US4584541A (en) * 1984-12-28 1986-04-22 Rca Corporation Digital modulator with variations of phase and amplitude modulation
US4696017A (en) * 1986-02-03 1987-09-22 E-Systems, Inc. Quadrature signal generator having digitally-controlled phase and amplitude correction
US4675618A (en) * 1986-06-09 1987-06-23 Rockwell International Corporation Linearizer circuit for frequency modulation oscillator

Also Published As

Publication number Publication date
US4972440A (en) 1990-11-20
JPH02180453A (ja) 1990-07-13
AU4163389A (en) 1990-03-29
EP0360178A2 (en) 1990-03-28
CA1320604C (en) 1993-07-20
EP0360178B1 (en) 1994-11-30
EP0360178A3 (en) 1990-12-27
DE68919611T2 (de) 1995-07-13
AU608177B2 (en) 1991-03-21
JPH0693705B2 (ja) 1994-11-16
DE68919611D1 (de) 1995-01-12

Similar Documents

Publication Publication Date Title
ES2064407T3 (es) Circuito transmisor para transmitir eficientemente trafico de comunicacion a traves de señales portadoras moduladas en fase.
AU1304800A (en) Method and apparatus for generating a linearly modulated signal using polar modulation
GB2113036B (en) Fault location arrangement for digital optical transmission system
KR960027861A (ko) 엔벨로프가 가변인 변조 신호를 엔벨로프가 가변이 아닌 2개의 변조 신호로 변환하는 변환기, 이 변환기를 사용하는 트랜스미터 및 엔벨로프가 가변인 변조파를 송신하는 방법
AU3639901A (en) Antenna coupling systems and methods for transmitters
BR9714050A (pt) Transmissor para uso em um sistema de comunicação, e, processo para a modulação de um sinal de saìda de um circuito travado em fase em um transmissor de rádio.
GB2242091B (en) An optical communication system.
GB1246140A (en) Improvements in or relating to high efficiency transmitters
SU613732A3 (ru) Модулирующее устройство
JPS62188841U (es)
FI964362A0 (fi) Menetelmä usean signaalin yhdistämiseksi ja tukiasMenetelmä usean signaalin yhdistämiseksi ja tukiasema ema
DE60034305D1 (de) Amplitudenmodulator
GB1296733A (es)
JPS5627584A (en) Two-way communication unit
JPS5443406A (en) Nonlinear distortion compensating device for amplitude phase modulated wave
JPS5660149A (en) Transmitter for multiphase multilevel modulated signal accompanying amplitude modulation
GB1257179A (es)
ES2040212T3 (es) Dispositivo de acceso a linea para comunicacion dentro de banda.
GB637877A (en) Improvements in or relating to high frequency electronic valve amplifiers
JPH0275843U (es)
GB1485689A (en) Untuned waveform synthesis transmitter
GB1287239A (en) Amplifying device for single sideband signals
BR0004260A (pt) Transmissão e recepção de dados por meio da portadora de amplitude modulada
FR2317824A1 (fr) Repeteur de telecommunication a acces multiples et systeme de telecommunication utilisant un tel repeteur
GB1427944A (en) Radio frequency transmitters

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 360178

Country of ref document: ES