FI20075410L - Järjestelmät, menetelmät ja laitteet lineaarisia verhokäyrän eliminointi ja palautuslähettimiä varten - Google Patents
Järjestelmät, menetelmät ja laitteet lineaarisia verhokäyrän eliminointi ja palautuslähettimiä varten Download PDFInfo
- Publication number
- FI20075410L FI20075410L FI20075410A FI20075410A FI20075410L FI 20075410 L FI20075410 L FI 20075410L FI 20075410 A FI20075410 A FI 20075410A FI 20075410 A FI20075410 A FI 20075410A FI 20075410 L FI20075410 L FI 20075410L
- Authority
- FI
- Finland
- Prior art keywords
- transmitters
- recovery
- systems
- methods
- envelope elimination
- Prior art date
Links
- 230000008030 elimination Effects 0.000 title 1
- 238000003379 elimination reaction Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
Classifications
-
- 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
- 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
-
- 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
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from the input signal
- H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
-
- 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
- H03F1/02—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
- H03F1/0211—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
- H03F1/0216—Continuous control
- H03F1/0222—Continuous control by using a signal derived from 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
- 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
- H03F1/0216—Continuous control
- H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
-
- 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
- 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
- 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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
-
- 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
- H04L27/367—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion
- H04L27/368—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator using predistortion adaptive predistortion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/324—An amplitude modulator or demodulator being used in the amplifier 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
- H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/78—A comparator being used in a controlling circuit of an amplifier
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2200/00—Indexing scheme relating to amplifiers
- H03F2200/99—A diode as rectifier being used as a detecting circuit in an amplifying circuit
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2201/00—Indexing scheme relating to details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements covered by H03F1/00
- H03F2201/32—Indexing scheme relating to modifications of amplifiers to reduce non-linear distortion
- H03F2201/3233—Adaptive predistortion using lookup table, e.g. memory, RAM, ROM, LUT, to generate the predistortion
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80387106P | 2006-06-04 | 2006-06-04 | |
US11/754,119 US7518445B2 (en) | 2006-06-04 | 2007-05-25 | Systems, methods, and apparatuses for linear envelope elimination and restoration transmitters |
Publications (2)
Publication Number | Publication Date |
---|---|
FI20075410A0 FI20075410A0 (fi) | 2007-06-04 |
FI20075410L true FI20075410L (fi) | 2007-12-05 |
Family
ID=38289782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI20075410A FI20075410L (fi) | 2006-06-04 | 2007-06-04 | Järjestelmät, menetelmät ja laitteet lineaarisia verhokäyrän eliminointi ja palautuslähettimiä varten |
Country Status (6)
Country | Link |
---|---|
US (2) | US7518445B2 (fi) |
KR (1) | KR100867548B1 (fi) |
DE (1) | DE102007026022A1 (fi) |
FI (1) | FI20075410L (fi) |
FR (1) | FR2924539A1 (fi) |
GB (1) | GB2438749B8 (fi) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2389253B (en) * | 2002-05-31 | 2005-09-21 | Hitachi Ltd | Transmitter and semiconductor integrated circuit for communication |
US7558542B2 (en) * | 2006-06-09 | 2009-07-07 | Mediatek Inc. | System and method for providing a transmitter for polar modulation and power amplifier linearization |
US7729670B2 (en) * | 2006-09-29 | 2010-06-01 | Broadcom Corporation | Method and system for minimizing power consumption in a communication system |
US20090042520A1 (en) * | 2007-08-07 | 2009-02-12 | Harris Corporation | Envelope tracking RF amplifier |
US20090139972A1 (en) * | 2007-10-23 | 2009-06-04 | Psion Teklogix Inc. | Docking connector |
CN101217522A (zh) * | 2007-12-27 | 2008-07-09 | 华为技术有限公司 | 确定开环预失真参数的方法和装置、发信机和发信方法 |
US7800437B2 (en) * | 2008-05-21 | 2010-09-21 | Silicon Laboratories Inc. | Closed loop timing feedback for PWM switching amplifiers using predictive feedback compensation |
EP2144365A1 (en) * | 2008-07-11 | 2010-01-13 | Alcatel Lucent | Device for amplifying signals with an envelope tracking technique or an envelope extraction and restoration technique controlled by a switched modulation |
EP2306638B1 (en) * | 2009-09-30 | 2011-11-16 | Alcatel Lucent | Envelope tracking amplifier arrangement |
JP5036839B2 (ja) * | 2010-03-24 | 2012-09-26 | 株式会社東芝 | 電力増幅器及び半導体集積回路 |
WO2012086379A1 (ja) | 2010-12-22 | 2012-06-28 | 住友電気工業株式会社 | 増幅回路及び無線通信装置 |
GB2498391B (en) | 2012-01-16 | 2018-11-21 | Snaptrack Inc | Pre-distortion in RF path in combination with shaping table in envelope path for envelope tracking amplifier |
US9219448B2 (en) * | 2012-03-30 | 2015-12-22 | Nec Corporation | Amplifier and amplification method |
JP5779725B2 (ja) * | 2012-09-25 | 2015-09-16 | 株式会社日立国際電気 | 歪み補償回路および歪み補償回路と高周波電力増幅器を用いた送信装置 |
US8841968B2 (en) * | 2012-09-26 | 2014-09-23 | Broadcom Corporation | Class-AB radio frequency amplifier for envelope detector |
GB201309235D0 (en) * | 2013-05-22 | 2013-07-03 | Nujira Ltd | Transfer function regulation |
US10382246B2 (en) * | 2014-01-07 | 2019-08-13 | Quantumsine Acquisitions Inc. | Combined amplitude-time and phase modulation |
US11140018B2 (en) * | 2014-01-07 | 2021-10-05 | Quantumsine Acquisitions Inc. | Method and apparatus for intra-symbol multi-dimensional modulation |
US9866182B2 (en) | 2015-05-15 | 2018-01-09 | Crocus Technology Inc. | MRAM-based pre-distortion linearization and amplification circuits |
US9748901B2 (en) | 2015-06-16 | 2017-08-29 | Avago Technologies General Ip (Singapore) Pte. Ltd. | Power amplifying apparatus |
US11025458B2 (en) * | 2019-02-07 | 2021-06-01 | Qorvo Us, Inc. | Adaptive frequency equalizer for wide modulation bandwidth envelope tracking |
US11671064B2 (en) | 2020-01-07 | 2023-06-06 | Qorvo Us, Inc. | Equalizer for envelope power supply circuitry |
US11677365B2 (en) | 2020-01-08 | 2023-06-13 | Qorvo Us, Inc. | Envelope tracking power management apparatus incorporating multiple power amplifiers |
US11716057B2 (en) | 2020-01-28 | 2023-08-01 | Qorvo Us, Inc. | Envelope tracking circuitry |
US11728774B2 (en) | 2020-02-26 | 2023-08-15 | Qorvo Us, Inc. | Average power tracking power management integrated circuit |
US11545945B2 (en) * | 2020-03-04 | 2023-01-03 | Qorvo Us, Inc. | Apparatus and method for calibrating an envelope tracking lookup table |
US11626844B2 (en) | 2020-03-09 | 2023-04-11 | Qorvo Us, Inc. | Envelope tracking radio frequency front-end circuit |
US11855595B2 (en) * | 2020-06-05 | 2023-12-26 | Skyworks Solutions, Inc. | Composite cascode power amplifiers for envelope tracking applications |
US11909385B2 (en) | 2020-10-19 | 2024-02-20 | Qorvo Us, Inc. | Fast-switching power management circuit and related apparatus |
US12068720B2 (en) | 2021-02-26 | 2024-08-20 | Qorvo Us, Inc. | Barely Doherty dual envelope tracking (BD2E) circuit |
US12063018B2 (en) | 2021-06-10 | 2024-08-13 | Qorvo Us, Inc. | Envelope tracking integrated circuit operable with multiple types of power amplifiers |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5140703A (en) * | 1988-10-14 | 1992-08-18 | Payne Christopher P | Modulation distortion analyzer |
US5420536A (en) * | 1993-03-16 | 1995-05-30 | Victoria University Of Technology | Linearized power amplifier |
US6801516B1 (en) | 1995-06-30 | 2004-10-05 | Interdigital Technology Corporation | Spread-spectrum system for assigning information signals having different data rates |
ZA965340B (en) | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
US5742201A (en) | 1996-01-30 | 1998-04-21 | Spectrian | Polar envelope correction mechanism for enhancing linearity of RF/microwave power amplifier |
US5923712A (en) | 1997-05-05 | 1999-07-13 | Glenayre Electronics, Inc. | Method and apparatus for linear transmission by direct inverse modeling |
US6295442B1 (en) * | 1998-12-07 | 2001-09-25 | Ericsson Inc. | Amplitude modulation to phase modulation cancellation method in an RF amplifier |
US6236267B1 (en) * | 1998-12-29 | 2001-05-22 | International Business Machines Corporation | Linearization for power amplifiers using feed-forward and feedback control |
EP1017162A3 (en) | 1998-12-30 | 2003-07-16 | Texas Instruments Incorporated | Amplifier circuit with negative feedback loop for distortion reduction |
US6449465B1 (en) * | 1999-12-20 | 2002-09-10 | Motorola, Inc. | Method and apparatus for linear amplification of a radio frequency signal |
CA2329100A1 (en) * | 1999-12-21 | 2001-06-21 | Nortel Networks Limited | Phase and amplitude detector and method of determining errors |
KR100654856B1 (ko) * | 1999-12-27 | 2006-12-08 | 한국전자통신연구원 | 비선형 왜곡 보상을 위한 적응 전치 왜곡기 |
AU2002213966A1 (en) | 2000-10-18 | 2002-04-29 | Telefonaktiebolaget Lm Ericsson (Publ) | Communications systems |
GB2369941A (en) | 2000-12-09 | 2002-06-12 | Roke Manor Research | A polar loop amplifier arrangement with variable gain in a feedback loop |
GB2376584B (en) | 2001-06-15 | 2005-02-16 | Wireless Systems Int Ltd | Signal correction techniques |
US7409004B2 (en) | 2001-06-19 | 2008-08-05 | Matsushita Electric Industrial Co., Ltd. | Hybrid polar modulator differential phase Cartesian feedback correction circuit for power amplifier linearization |
GB2380880B (en) | 2001-10-10 | 2004-02-11 | Zarlink Semiconductor Ltd | A polar loop transmitter |
SE520466C2 (sv) | 2001-11-12 | 2003-07-15 | Ericsson Telefon Ab L M | Metod och anordning vid en digital linjäriseringskoppling |
WO2003073605A1 (fr) | 2002-02-28 | 2003-09-04 | Fujitsu Limited | Amplificateur haute frequence |
US7024620B2 (en) | 2002-03-08 | 2006-04-04 | Hewlett-Packard Development Company, L.P. | Point-of-need document production system and method |
US6794938B2 (en) | 2002-03-19 | 2004-09-21 | The University Of North Carolina At Charlotte | Method and apparatus for cancellation of third order intermodulation distortion and other nonlinearities |
US6642786B1 (en) * | 2002-08-15 | 2003-11-04 | Electronics And Telecommunications Research Institute | Piecewise polynomial predistortion method and apparatus for compensating nonlinear distortion of high power amplifier |
ATE339805T1 (de) | 2002-11-14 | 2006-10-15 | Fraunhofer Ges Forschung | Sendestufe mit phasen und amplitudenregelschleife |
DE10257435B3 (de) | 2002-11-14 | 2004-09-09 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Sendestufe |
JP3844352B2 (ja) | 2003-08-07 | 2006-11-08 | 松下電器産業株式会社 | 送信装置 |
JP2005269440A (ja) | 2004-03-19 | 2005-09-29 | Matsushita Electric Ind Co Ltd | ポーラ変調送信装置及びポーラ変調方法 |
US7330073B2 (en) | 2004-10-06 | 2008-02-12 | Telefonaktiebolaget L M Ericsson (Publ) | Arbitrary waveform predistortion table generation |
DE102005006162B3 (de) | 2005-02-10 | 2006-08-17 | Infineon Technologies Ag | Sende-/Empfangseinrichtung mit einem eine einstellbare Vorverzerrung aufweisenden Polar-Modulator |
US7532676B2 (en) | 2005-10-20 | 2009-05-12 | Trellis Phase Communications, Lp | Single sideband and quadrature multiplexed continuous phase modulation |
-
2007
- 2007-05-25 US US11/754,119 patent/US7518445B2/en active Active
- 2007-06-04 KR KR1020070054711A patent/KR100867548B1/ko not_active IP Right Cessation
- 2007-06-04 FR FR0703974A patent/FR2924539A1/fr not_active Withdrawn
- 2007-06-04 GB GB0710602A patent/GB2438749B8/en not_active Expired - Fee Related
- 2007-06-04 FI FI20075410A patent/FI20075410L/fi not_active Application Discontinuation
- 2007-06-04 DE DE102007026022A patent/DE102007026022A1/de not_active Withdrawn
-
2009
- 2009-03-18 US US12/406,183 patent/US7888997B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US7518445B2 (en) | 2009-04-14 |
GB2438749A8 (en) | 2008-11-26 |
US20090174473A1 (en) | 2009-07-09 |
GB2438749A (en) | 2007-12-05 |
FI20075410A0 (fi) | 2007-06-04 |
GB0710602D0 (en) | 2007-07-11 |
DE102007026022A1 (de) | 2008-01-24 |
US7888997B2 (en) | 2011-02-15 |
US20070290748A1 (en) | 2007-12-20 |
FR2924539A1 (fr) | 2009-06-05 |
GB2438749B (en) | 2011-02-16 |
KR20070116205A (ko) | 2007-12-07 |
KR100867548B1 (ko) | 2008-11-06 |
GB2438749B8 (en) | 2011-07-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |