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
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).
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)
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 |
AUPP111297A0 (en) * | 1997-12-24 | 1998-01-22 | Ilamon Pty Ltd | A transmitter and a method for transmitting data |
US6967573B1 (en) | 1997-12-24 | 2005-11-22 | Parakan Pty Ltd. | 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 |
US6191653B1 (en) * | 1998-11-18 | 2001-02-20 | Ericsson Inc. | Circuit and method for linearizing amplitude modulation in a power amplifier |
US6194963B1 (en) * | 1998-11-18 | 2001-02-27 | Ericsson Inc. | Circuit and method for I/Q modulation with independent, high efficiency amplitude modulation |
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 |
DE102012204451A1 (de) * | 2012-03-20 | 2013-09-26 | Intel Mobile Communications GmbH | Sender und verfahren |
US9246722B2 (en) | 2012-03-20 | 2016-01-26 | Intel Deutschland Gmbh | Device for providing a differential output signal and method for providing a differential output signal |
Family Cites Families (13)
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 |
-
1988
- 1988-09-23 US US07/248,446 patent/US4972440A/en not_active Expired - Lifetime
-
1989
- 1989-09-08 CA CA000610777A patent/CA1320604C/en not_active Expired - Fee Related
- 1989-09-16 ES ES89117166T patent/ES2064407T3/es not_active Expired - Lifetime
- 1989-09-16 EP EP89117166A patent/EP0360178B1/en not_active Expired - Lifetime
- 1989-09-16 DE DE68919611T patent/DE68919611T2/de not_active Expired - Fee Related
- 1989-09-20 AU AU41633/89A patent/AU608177B2/en not_active Ceased
- 1989-09-22 JP JP1245386A patent/JPH0693705B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE68919611T2 (de) | 1995-07-13 |
AU608177B2 (en) | 1991-03-21 |
EP0360178A3 (en) | 1990-12-27 |
JPH02180453A (ja) | 1990-07-13 |
EP0360178B1 (en) | 1994-11-30 |
CA1320604C (en) | 1993-07-20 |
DE68919611D1 (de) | 1995-01-12 |
JPH0693705B2 (ja) | 1994-11-16 |
EP0360178A2 (en) | 1990-03-28 |
AU4163389A (en) | 1990-03-29 |
US4972440A (en) | 1990-11-20 |
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 | |
GB2242091B (en) | An optical communication system. | |
CA2237260A1 (en) | Optical transmitter | |
SE9703001L (sv) | Optiskt sändarsystem och förfarande | |
GB1246140A (en) | Improvements in or relating to high efficiency transmitters | |
SU613732A3 (ru) | Модулирующее устройство | |
KR840007335A (ko) | 비화신호 송신시스템 | |
JPS62188841U (es) | ||
FI964362A0 (fi) | Menetelmä usean signaalin yhdistämiseksi ja tukiasMenetelmä usean signaalin yhdistämiseksi ja tukiasema ema | |
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 | |
FR2317824A1 (fr) | Repeteur de telecommunication a acces multiples et systeme de telecommunication utilisant un tel repeteur | |
GB1427944A (en) | Radio frequency transmitters | |
GB774471A (en) | Improvements in or relating to secret signalling systems | |
ES8308456A1 (es) | Perfeccionamientos en los sistemas circuitales para la modu-lacion de la senal transmitida desde estaciones fijas. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 360178 Country of ref document: ES |