CO4820450A1 - Sintesis hibrida en forma de onda para amplificadores de potencia chireix/doherty - Google Patents
Sintesis hibrida en forma de onda para amplificadores de potencia chireix/dohertyInfo
- Publication number
- CO4820450A1 CO4820450A1 CO99019352A CO99019352A CO4820450A1 CO 4820450 A1 CO4820450 A1 CO 4820450A1 CO 99019352 A CO99019352 A CO 99019352A CO 99019352 A CO99019352 A CO 99019352A CO 4820450 A1 CO4820450 A1 CO 4820450A1
- Authority
- CO
- Colombia
- Prior art keywords
- signal
- current
- amplifier
- voltage
- amplitude
- Prior art date
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
- H03F1/02—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
- H03F1/0288—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using a main and one or several auxiliary peaking amplifiers whereby the load is connected to the main amplifier using an impedance inverter, e.g. Doherty amplifiers
-
- 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
- H03F1/3282—Acting on the phase and the amplitude of the input 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
- H03F1/02—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
-
- 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
- H03F1/0294—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers using vector summing of two or more constant amplitude phase-modulated signals
-
- 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
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
-
- 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
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/336—A I/Q, i.e. phase quadrature, modulator or demodulator being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/451—Indexing scheme relating to amplifiers the amplifier being a radio frequency amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/541—Transformer coupled at the output of an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/20—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F2203/21—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F2203/211—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
- H03F2203/21106—An input signal being distributed in parallel over the inputs of a plurality of power amplifiers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/20—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F2203/21—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F2203/211—Indexing scheme relating to power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several amplifiers
- H03F2203/21142—Output signals of a plurality of power amplifiers are parallel combined to a common output
Abstract
Un amplificador de potencia que amplifica una señal de entradaAC de amplitud variable y fase variable para producir una tensión de señal de salida amplificada y una corriente de salida en una impedancia de carga utilizando una fuente de alimentación DC, que consta de:medios para convertir una señal de entrada AC en una primera señal que tenga amplitud constante y con un primer ángulo de fase y en una segunda señal que tenga amplitud constante y en un segundo ángulo de fase; un primer medio para amplificar la primera señal para producir una primera tensión de señal de salida de amplitud de tensión constante; el primer medio de amplificación incluye dispositivos de amplificador bilateral que toman corriente de la fuente de alimentación DC y suministran corriente a la fuente de alimentación DC;un segundo medio para amplificar la segunda señal para producir una segunda tensión de señal de salida de amplitud constante; el segundo medio de amplificación incluye dispositivos de amplificador bilateral que toman corriente de la fuente de alimentación DC y suministran corriente a la fuente de alimentación DC; y Sigue... - 2 -medios para acoplar en serie la primera y segunda tensión de señal de salida a la impedancia de carga tal que la suma de la primera y segunda tensión de señal de salida produce la tensión de señal de salida amplificada a través de la impedancia de carga y produce la corriente de salida por la impedancia de carga, y tal que la corriente de un amplificador que está relacionado linealmente a la corriente de salida fluye en los dispositivos de amplificador bilateral de tanto el primero con el segundo medio de amplificación. 1Un amplificador de potencia que amplifica una señal de entrada AC de amplitud variable y fase variable para producir una tensión de señal de salida amplificada y una corriente de salida en una impedancia de carga utilizando una fuente de alimentación DC, que consta de: medios para convertir la señal de entrada AC en una primera señal con amplitud constante y un primer ángulo de fase en una segunda señal con amplitud constante y un segundo ángulo de fase; un primer medio para amplificar la primera señal para producir una primera tensión de señal de salida de amplitud de tensión constante; el primer medio de amplificación incluye dispositivos de amplificador bilateral que sacan corriente de la fuente de alimentación DC y suministran corriente a la fuente de alimentación DC; un segundo medio para amplificar la segunda señal para producir una tensión de señal de salida, de amplitud de tensión constante; el segundo medio de amplificación incluye dispositivos de amplificador bilateral que toman corriente de la fuente de alimentación DC y suministran corriente a la fuente de alimentación DC; y medios para acoplar la primera y segunda tensión de señal de salida a la impedancia de carga, tal que una tensión proporcional a la suma de la primera y segunda tensión de señal de salida produce tensión de señal de salida través de la impedancia de carga y produce la corriente de salida por la impedancia de carga, y tal que una corriente de amplificador que está relacionado linealmente a la corriente de salida fluye en los dispositivos de amplificador bilateral de tanto del primero como del segundo medio de amplificación.21.- Un método para amplificar la señal de entrada AC de amplitud variable y fase variable que utiliza una fuente de alimentación DC; el método de amplificación consta de los siguientes pasos: convertir la señal de entrada AC en una primera señal con amplitud constante y un primer ángulo de fase en una segunda señal con amplitud constante y un segundo ángulo de fase; amplificar la primera señal en un primer amplificador; amplificar la segunda señal en un segundo amplificador; yacoplar el primero y segundo amplificadores entre sí y a una impedancia de carga; dichas tensiones o corrientes en el primer amplificador reaccionan linealmente a las tensiones o corrientes en el segundo amplificador.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/054,063 US6133788A (en) | 1998-04-02 | 1998-04-02 | Hybrid Chireix/Doherty amplifiers and methods |
US09/054,060 US5930128A (en) | 1998-04-02 | 1998-04-02 | Power waveform synthesis using bilateral devices |
Publications (1)
Publication Number | Publication Date |
---|---|
CO4820450A1 true CO4820450A1 (es) | 1999-07-28 |
Family
ID=26732578
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CO99019352A CO4820450A1 (es) | 1998-04-02 | 1999-03-31 | Sintesis hibrida en forma de onda para amplificadores de potencia chireix/doherty |
Country Status (5)
Country | Link |
---|---|
US (1) | US6311046B1 (es) |
KR (1) | KR20010052234A (es) |
AR (1) | AR014814A1 (es) |
CO (1) | CO4820450A1 (es) |
MY (1) | MY122208A (es) |
Families Citing this family (57)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6809508B2 (en) * | 2000-10-20 | 2004-10-26 | Ethicon Endo-Surgery, Inc. | Detection circuitry for surgical handpiece system |
US6975686B1 (en) * | 2000-10-31 | 2005-12-13 | Telefonaktiebolaget L.M. Ericsson | IQ modulation systems and methods that use separate phase and amplitude signal paths |
US6981011B1 (en) * | 2001-10-01 | 2005-12-27 | Durham Logistics Llc | Precision complex sinusoid generation using limited processing |
US7240083B1 (en) | 2001-10-01 | 2007-07-03 | Thiagarajan Ganesan | Precision complex sinusoid generation using limited processing |
US6574082B2 (en) * | 2001-10-09 | 2003-06-03 | Ericsson Inc. | Methods and systems for operating temperature controls for electronic equipment |
US7526260B2 (en) * | 2002-11-14 | 2009-04-28 | M/A-Com Eurotec, B.V. | Apparatus, methods and articles of manufacture for linear signal modification |
US6924699B2 (en) * | 2003-03-06 | 2005-08-02 | M/A-Com, Inc. | Apparatus, methods and articles of manufacture for digital modification in electromagnetic signal processing |
US7245183B2 (en) * | 2002-11-14 | 2007-07-17 | M/A-Com Eurotec Bv | Apparatus, methods and articles of manufacture for processing an electromagnetic wave |
US7203262B2 (en) | 2003-05-13 | 2007-04-10 | M/A-Com, Inc. | Methods and apparatus for signal modification in a fractional-N phase locked loop system |
US7545865B2 (en) * | 2002-12-03 | 2009-06-09 | M/A-Com, Inc. | Apparatus, methods and articles of manufacture for wideband signal processing |
US7298854B2 (en) * | 2002-12-04 | 2007-11-20 | M/A-Com, Inc. | Apparatus, methods and articles of manufacture for noise reduction in electromagnetic signal processing |
US7187231B2 (en) * | 2002-12-02 | 2007-03-06 | M/A-Com, Inc. | Apparatus, methods and articles of manufacture for multiband signal processing |
US6891432B2 (en) * | 2002-11-14 | 2005-05-10 | Mia-Com, Inc. | Apparatus, methods and articles of manufacture for electromagnetic processing |
US6859098B2 (en) | 2003-01-17 | 2005-02-22 | M/A-Com, Inc. | Apparatus, methods and articles of manufacture for control in an electromagnetic processor |
EP1469594A1 (en) * | 2003-04-17 | 2004-10-20 | Dialog Semiconductor GmbH | Multi level Class-D amplifier by means of 2 physical layers |
DE10340812A1 (de) * | 2003-09-04 | 2005-04-28 | Siemens Ag | Lineare Verstärkeranordnung mit nichtlinearem Verstärkerelement für eine mobile Funkeinrichtung |
US7091778B2 (en) | 2003-09-19 | 2006-08-15 | M/A-Com, Inc. | Adaptive wideband digital amplifier for linearly modulated signal amplification and transmission |
US7480511B2 (en) * | 2003-09-19 | 2009-01-20 | Trimble Navigation Limited | Method and system for delivering virtual reference station data |
US7343138B2 (en) * | 2003-12-08 | 2008-03-11 | M/A-Com, Inc. | Compensating for load pull in electromagentic signal propagation using adaptive impedance matching |
JP2005293785A (ja) * | 2004-04-05 | 2005-10-20 | Elpida Memory Inc | 半導体記憶装置及びそのセルフリフレッシュ制御方法 |
US7355470B2 (en) | 2006-04-24 | 2008-04-08 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning |
US7327803B2 (en) | 2004-10-22 | 2008-02-05 | Parkervision, Inc. | Systems and methods for vector power amplification |
EP1902526A4 (en) * | 2005-05-27 | 2009-11-11 | Ahmed Birafane | HIGH EFFICIENCY RF TRANSMITTER SYSTEM USING LINEAR AMPLIFIERS |
US8334722B2 (en) | 2007-06-28 | 2012-12-18 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation and amplification |
US7911272B2 (en) | 2007-06-19 | 2011-03-22 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments |
US9106316B2 (en) | 2005-10-24 | 2015-08-11 | Parkervision, Inc. | Systems and methods of RF power transmission, modulation, and amplification |
US8013675B2 (en) | 2007-06-19 | 2011-09-06 | Parkervision, Inc. | Combiner-less multiple input single output (MISO) amplification with blended control |
US7937106B2 (en) | 2006-04-24 | 2011-05-03 | ParkerVision, Inc, | Systems and methods of RF power transmission, modulation, and amplification, including architectural embodiments of same |
US8031804B2 (en) | 2006-04-24 | 2011-10-04 | Parkervision, Inc. | Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion |
US9622190B2 (en) | 2006-07-25 | 2017-04-11 | Google Technology Holdings LLC | Spectrum emission level variation in schedulable wireless communication terminal |
US20080025254A1 (en) * | 2006-07-25 | 2008-01-31 | Motorola Inc | Spectrum emission level variation in schedulable wireless communication terminal |
US8018276B2 (en) * | 2006-09-28 | 2011-09-13 | Motorola Mobility, Inc. | Signal processing method and power amplifier device |
US20080095458A1 (en) * | 2006-10-19 | 2008-04-24 | Motorola, Inc. | Method and apparatus for generating outphased signals |
WO2008144017A1 (en) | 2007-05-18 | 2008-11-27 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
US8509346B2 (en) * | 2007-10-10 | 2013-08-13 | St-Ericsson Sa | Transmitter with reduced power consumption and increased linearity and dynamic range |
US7629844B2 (en) * | 2008-01-01 | 2009-12-08 | Intel Corporation | Device, system, and method of semi-Doherty outphasing amplification |
US7957712B2 (en) * | 2008-06-16 | 2011-06-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Double-LINC switched-mode transmitter |
KR100881155B1 (ko) * | 2008-07-18 | 2009-02-13 | (주)디라직 | 다중 전원 혼합형 증폭기 |
EP2359471A2 (en) * | 2008-11-18 | 2011-08-24 | Nxp B.V. | Decomposer and amplifier |
FR2939995A1 (fr) * | 2008-12-17 | 2010-06-18 | Commissariat Energie Atomique | Dispositif et procede de traitement d'un signal, systeme d'emission radiofrequence comportant un tel dispositif |
JP5707786B2 (ja) * | 2010-08-31 | 2015-04-30 | 富士通株式会社 | 化合物半導体装置及びその製造方法 |
WO2012139126A1 (en) | 2011-04-08 | 2012-10-11 | Parkervision, Inc. | Systems and methods of rf power transmission, modulation, and amplification |
US8934500B2 (en) | 2011-04-13 | 2015-01-13 | Motorola Mobility Llc | Method and apparatus using two radio access technologies for scheduling resources in wireless communication systems |
US9565655B2 (en) | 2011-04-13 | 2017-02-07 | Google Technology Holdings LLC | Method and apparatus to detect the transmission bandwidth configuration of a channel in connection with reducing interference between channels in wireless communication systems |
JP6174574B2 (ja) | 2011-06-02 | 2017-08-02 | パーカーヴィジョン インコーポレイテッド | アンテナ制御 |
US8798561B2 (en) * | 2011-09-08 | 2014-08-05 | Alcatel Lucent | Radio-frequency circuit having a transcoupling element |
US8649744B2 (en) | 2011-09-08 | 2014-02-11 | Alcatel Lucent | Radio-frequency transmitter, such as for broadcasting and cellular base stations |
JP2014082749A (ja) * | 2012-09-28 | 2014-05-08 | Fordan Kk | 複合電力増幅器を有する複合送信機 |
KR20160058855A (ko) | 2013-09-17 | 2016-05-25 | 파커비전, 인크. | 정보를 포함하는 시간의 함수를 렌더링하기 위한 방법, 장치 및 시스템 |
WO2015175374A1 (en) | 2014-05-12 | 2015-11-19 | Massachusetts Institute Of Technology | Physical layer encryption using out-phased array linearized signaling |
EP3187869B1 (en) * | 2014-08-29 | 2023-03-08 | Kyocera Corporation | Sensor device and sensing method |
KR102407975B1 (ko) * | 2014-09-02 | 2022-06-13 | 삼성전자주식회사 | 병렬 출력단 선형 증폭기 |
US10044379B2 (en) | 2014-11-19 | 2018-08-07 | Nec Corporation | Transmitter, signal synthesis circuit, and signal synthesis method |
KR101684469B1 (ko) | 2015-04-02 | 2016-12-08 | 연세대학교 산학협력단 | 변환 매칭 회로를 이용한 c-밴드 cmos 양방향 증폭기 |
EP3145077B1 (en) * | 2015-09-16 | 2019-11-13 | Ampleon Netherlands B.V. | A power amplifier cell |
EP3363117B1 (en) * | 2015-11-10 | 2019-10-30 | Huawei Technologies Co., Ltd. | Quadrature digital power amplifier |
CN111384901B (zh) * | 2020-03-14 | 2023-02-24 | 电子科技大学 | 一种基于后匹配网络的宽带高效率三路Doherty功率放大器 |
Family Cites Families (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3448366A (en) | 1966-11-28 | 1969-06-03 | Mallory & Co Inc P R | Multiphase static inverter |
US3777275A (en) | 1972-01-31 | 1973-12-04 | Bell Telephone Labor Inc | Linear amplification with nonlinear devices |
US3805139A (en) | 1972-09-29 | 1974-04-16 | Ibm | Programmed waveform power inverter control system |
US3909742A (en) | 1974-08-19 | 1975-09-30 | Bell Telephone Labor Inc | Linear amplification using nonlinear devices and feedback |
US3906401A (en) | 1974-09-03 | 1975-09-16 | Bell Telephone Labor Inc | Feedforward error correction in interferometer modulators |
US3927379A (en) | 1975-01-08 | 1975-12-16 | Bell Telephone Labor Inc | Linear amplification using nonlinear devices and inverse sine phase modulation |
US4090147A (en) | 1977-07-20 | 1978-05-16 | Bell Telephone Laboratories, Incorporated | Interferometric amplifier |
US4095196A (en) * | 1977-07-20 | 1978-06-13 | Bell Telephone Laboratories, Incorporated | Arc-cosine phase modulators |
US4178557A (en) | 1978-12-15 | 1979-12-11 | Bell Telephone Laboratories, Incorporated | Linear amplification with nonlinear devices |
US4323731A (en) * | 1978-12-18 | 1982-04-06 | Harris Corporation | Variable-angle, multiple channel amplitude modulation system |
US4315107A (en) | 1979-10-15 | 1982-02-09 | Bell Telephone Laboratories, Incorporated | Telephone range extender with gain |
NL8001903A (nl) | 1980-04-01 | 1981-11-02 | Philips Nv | Inrichting voor het versterken van een gemoduleerd draaggolfsignaal. |
NL8101109A (nl) | 1981-03-09 | 1982-10-01 | Philips Nv | Electronische inrichting voor het opwekken van een in amplitude en faze gemoduleerd draaggolfsignaal. |
US4509017A (en) | 1981-09-28 | 1985-04-02 | E-Systems, Inc. | Method and apparatus for pulse angle modulation |
US4433312A (en) | 1981-12-18 | 1984-02-21 | Kahn Leonard R | Method and means for modulating waves |
US4580111A (en) | 1981-12-24 | 1986-04-01 | Harris Corporation | Amplitude modulation using digitally selected carrier amplifiers |
US4700390A (en) * | 1983-03-17 | 1987-10-13 | Kenji Machida | Signal synthesizer |
NL8402319A (nl) * | 1984-07-23 | 1986-02-17 | Philips Nv | Inrichting voor het genereren van een hoekgemoduleerd draaggolfsignaal van constante amplitude in responsie op datasignalen. |
US4791815A (en) | 1986-04-11 | 1988-12-20 | Matsushita Electric Industrial Co., Ltd. | Cyclically driven gyro and adjusting system therefor |
US4862116A (en) | 1988-10-17 | 1989-08-29 | The United States Of America As Represented By The Secretary Of The Navy | Active phase and amplitude modulator |
JPH0379575A (ja) | 1989-08-23 | 1991-04-04 | Mitsubishi Electric Corp | エレベータの非常相互通話装置 |
JPH0495409A (ja) | 1990-08-13 | 1992-03-27 | Fujitsu Ltd | 増幅器 |
US5077539A (en) | 1990-12-26 | 1991-12-31 | Apogee Technology, Inc. | Switching amplifier |
US5767750A (en) | 1992-03-30 | 1998-06-16 | Kabushiki Kaisha Toshiba | Modulator |
GB9209982D0 (en) | 1992-05-08 | 1992-06-24 | British Tech Group | Method and apparatus for amplifying modulating and demodulating |
SE470455B (sv) | 1992-08-24 | 1994-04-11 | Ericsson Telefon Ab L M | Anordning för kompensering av fasvridningen i återkopplingsslingan vid en kartesiskt återkopplad effektförstärkare |
JPH07115728A (ja) | 1992-08-28 | 1995-05-02 | Tai-Her Yang | 複数の独立直流電源による多段階複電圧出力回路 |
EP0598585B1 (en) | 1992-11-16 | 1999-03-31 | Linear Modulation Technology Ltd | Automatic calibration of the quadrature balance within a cartesian amplifier |
FR2705844B1 (fr) | 1993-05-28 | 1995-07-21 | Thomson Csf | Procédé et dispositif de modulation en amplitude d'un signal radiofréquence. |
US5420541A (en) | 1993-06-04 | 1995-05-30 | Raytheon Company | Microwave doherty amplifier |
US5559468A (en) | 1993-06-28 | 1996-09-24 | Motorola, Inc. | Feedback loop closure in a linear transmitter |
DE4420376C2 (de) | 1993-09-22 | 1998-09-17 | Hewlett Packard Co | Quadraturmodulator |
US5365187A (en) | 1993-10-29 | 1994-11-15 | Hewlett-Packard Company | Power amplifier utilizing the vector addition of two constant envelope carriers |
FR2712126B1 (fr) | 1993-11-05 | 1995-12-01 | Thomson Csf | Amplificateur de puissance du type pont en H et ses moyens de blocage et dispositif amplificateur de puissance comportant de tels amplificateurs. |
US5563780A (en) | 1993-12-08 | 1996-10-08 | International Power Systems, Inc. | Power conversion array applying small sequentially switched converters in parallel |
US5563556A (en) * | 1994-01-24 | 1996-10-08 | Quantum Optics Corporation | Geometrically modulated waves |
US5778028A (en) | 1994-06-13 | 1998-07-07 | Zenith Electronics Corporation | DC removal circuit for digital signal |
US5438301A (en) | 1994-07-25 | 1995-08-01 | At&T Corp. | Modem having a phase corrector and a voltage controlled oscillator implemented using a multi-stage ring oscillator |
DE19535075A1 (de) | 1994-10-21 | 1996-04-25 | Deutsche Telekom Ag | Digitalmodulation |
JP2885660B2 (ja) | 1995-01-31 | 1999-04-26 | 日本無線株式会社 | 振幅変調回路 |
US5612651A (en) | 1996-01-02 | 1997-03-18 | Loral Aerospace Corp. | Modulating array QAM transmitter |
US5732333A (en) | 1996-02-14 | 1998-03-24 | Glenayre Electronics, Inc. | Linear transmitter using predistortion |
US5815531A (en) | 1996-06-12 | 1998-09-29 | Ericsson Inc. | Transmitter for encoded data bits |
US5734565A (en) | 1996-08-16 | 1998-03-31 | American Superconductor Corporation | Reducing switching losses in series connected bridge inverters and amplifiers |
US5900778A (en) | 1997-05-08 | 1999-05-04 | Stonick; John T. | Adaptive parametric signal predistorter for compensation of time varying linear and nonlinear amplifier distortion |
US5930128A (en) | 1998-04-02 | 1999-07-27 | Ericsson Inc. | Power waveform synthesis using bilateral devices |
US6023885A (en) | 1998-04-27 | 2000-02-15 | Southpac Trust International, Inc. | Floral sleeve having a decorative pattern |
US5990734A (en) | 1998-06-19 | 1999-11-23 | Datum Telegraphic Inc. | System and methods for stimulating and training a power amplifier during non-transmission events |
US6219088B1 (en) * | 1998-11-03 | 2001-04-17 | Broadcom Corporation | NTSC interference rejection filter |
-
1998
- 1998-12-10 US US09/209,104 patent/US6311046B1/en not_active Expired - Lifetime
-
1999
- 1999-03-16 KR KR1020007011005A patent/KR20010052234A/ko not_active Application Discontinuation
- 1999-03-22 MY MYPI99001073A patent/MY122208A/en unknown
- 1999-03-31 AR ARP990101502A patent/AR014814A1/es unknown
- 1999-03-31 CO CO99019352A patent/CO4820450A1/es unknown
Also Published As
Publication number | Publication date |
---|---|
MY122208A (en) | 2006-03-31 |
US6311046B1 (en) | 2001-10-30 |
AR014814A1 (es) | 2001-03-28 |
KR20010052234A (ko) | 2001-06-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CO4820450A1 (es) | Sintesis hibrida en forma de onda para amplificadores de potencia chireix/doherty | |
TR200002850T2 (tr) | Melez chireix/doherty amplifikatörlerinin güç dalga biçimi sentezi. | |
ATE377865T1 (de) | Verstärkung mit hohem wirkungsgrad | |
ATE441245T1 (de) | N-wege-hf-leistungsverstärker mit vergrísserter backoff-leistung und mehrleistungseffizienz | |
AR025196A1 (es) | Amplificador de potencia para amplificar una senal modulada lineal y proporcionar una senal amplificada a una carga en un nodo sumador. | |
TW200501559A (en) | N-way RF power amplifier circuit with increased back-off capability and power added efficiency using unequal input power division | |
SE0302586D0 (sv) | Composite power amplifier | |
TR200101889T2 (tr) | Güç IQ modülasyon sistemleri ve yöntemleri | |
ATE422108T1 (de) | Zusammengesetzte verstärkerstruktur | |
ATE463076T1 (de) | Leistungsverstärker | |
ATE346421T1 (de) | Zusammengesetzter verstärker | |
AU2001279113A1 (en) | Amplification systems and methods using fixed and modulated power supply voltages and buck-boost control | |
ATE308156T1 (de) | Dreiklasse-e-doherty-verstärkertopologie für signaltransmitter von hoher leistung | |
ATE453243T1 (de) | Dynamische vorspannungserhöhungsregelung für einen verstärker | |
DE60213876D1 (de) | Zusammengesetzter leistungsverstärker | |
WO2006055891A3 (en) | High efficiency doherty amplifier with a segmented main amplifier | |
DE60040643D1 (de) | Mehrstufiges Komparatorsystem und -Verfahren mit schneller Erholungszeit und geringem Offset | |
WO2007029119A3 (en) | High effeciency rf transmitter system using non-linear amplifiers | |
EP0887924A3 (en) | High efficiency RF amplifier | |
EP0397355A3 (en) | Current sense amplifier | |
TW200627791A (en) | Power amplifier circuit and method thereof | |
EP1119100A3 (en) | Amplifiers | |
CN102931932A (zh) | 一种互补偏置差分放大器 | |
CN206743199U (zh) | 一种高功率音频功率放大器 | |
WO2021042093A3 (en) | Dynamic bias for doherty pa |